Dose-dependent social-cognitive effects of intranasal oxytocin delivered with novel Breath Powered device in adults with autism spectrum disorder: a randomized placebo-controlled double-blind crossover trial
Open accessAbstract
The neuropeptide oxytocin has shown promise as a treatment for symptoms of autism spectrum disorders (ASD). However, clinical research progress has been hampered by a poor understanding of oxytocin’s dose–response and sub-optimal intranasal delivery methods. We examined two doses of oxytocin delivered using a novel Breath Powered intranasal delivery device designed to improve direct nose-to-brain activity in a double-blind, crossover, randomized, placebo-controlled trial. In a randomized sequence of single-dose sessions, 17 male adults with ASD received 8 international units (IU) oxytocin, 24IU oxytocin or placebo followed by four social-cognitive tasks. We observed an omnibus main effect of treatment on the primary outcome measure of overt emotion salience as measured by emotional ratings of faces (η2=0.18). Compared to placebo, 8IU treatment increased overt emotion salience (P=0.02, d=0.63). There was no statistically significant increase after 24IU treatment (P=0.12, d=0.4). The effects after 8IU oxytocin were observed despite no significant increase in peripheral blood plasma oxytocin concentrations. We found no significant effects for reading the mind in the eyes task performance or secondary outcome social-cognitive tasks (emotional dot probe and face-morphing). To our knowledge, this is the first trial to assess the dose-dependent effects of a single oxytocin administration in autism, with results indicating that a low dose of oxytocin can significantly modulate overt emotion salience despite minimal systemic exposure.
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Written from the paper’s full text.
TL;DR
In a randomized, double-blind, placebo-controlled 3-way crossover trial in 17 male adults with ASD, intranasal oxytocin 8 IU delivered by a Breath Powered device increased overt emotion salience for happiness in ambiguous faces versus placebo, whereas 24 IU did not significantly differ from placebo. The 8 IU effect occurred without a significant increase in peripheral plasma oxytocin concentrations.
Key findings
- Treatment had a significant main effect on happiness ratings of ambiguous faces, χ²(2)=6.71, P=0.03; 8 IU oxytocin increased ratings versus placebo (P=0.02, d=0.63), while 24 IU versus placebo was not significant (P=0.12, d=0.4) and 8 IU versus 24 IU was not significant (P=0.8, d=0.18). Repeated-measures ANOVA showed a similar main effect, F(2,32)=3.49, P=0.04, η²=0.18.
- For anger ratings of ambiguous faces, the treatment main effect was borderline, χ²(2)=4.83, P=0.09; 24 IU versus placebo was also borderline (P=0.07, d=0.64), with ANOVA η²=0.13.
- No significant treatment effects were found for RMET performance (χ²(2)=3.83, P=0.15), dot-probe attentional bias for happy (P=0.29) or angry (P=0.68) faces, or face-morphing speed/accuracy for happy or angry faces.
- Post-treatment peripheral oxytocin was higher after 24 IU than after 8 IU (P=0.01) and placebo (P<0.001), but there was no difference between 8 IU and placebo (P=0.45); AVP and cortisol showed no significant treatment effects.
Methods
- Randomized, double-blind, placebo-controlled, three-period crossover trial in 17 male adults with ASD aged 19–35 years (M=24.76, s.d.=4.75; mean full-scale IQ=109.8, s.d.=12.1). Participants received single doses of 8 IU oxytocin, 24 IU oxytocin, or placebo via a Breath Powered intranasal device, with at least 24 h between treatments.
- Primary outcomes were an overt emotion sensitivity task using happy, angry, and ambiguous faces and a Norwegian translation of the Reading the Mind in the Eyes Test (RMET). Secondary outcomes were an emotional dot probe task and an emotional face-morphing task; plasma oxytocin, AVP, cortisol, and state anxiety were also measured.
- Main analyses used multilevel linear mixed models comparing null versus main-effect models, with likelihood-ratio P-values and Tukey-adjusted post-hoc tests; repeated-measures ANOVAs and η² were also reported. A power analysis indicated 18 participants would provide 90% power for a large effect size (partial η²=0.14).
Limitations
- The paper states that the sample was young adult males without intellectual disability, limiting generalizability to the wider ASD population; no measure of disorder severity was collected; and the sample, although matching the median for oxytocin crossover studies, may still be considered small.
- The paper notes that secondary tasks may have been underpowered and that their timing (~60–80 min post-administration) may have missed peak central oxytocin concentrations, thought to be around 35–50 min post-administration; RMET results may reflect ceiling effects because placebo performance was 65.7% correct versus approximately 45% in prior ASD oxytocin research and 61% in ASD norms.
- Evident from the text: the trial assessed only single-dose administration in males, did not directly compare the Breath Powered device with traditional nasal spray devices, and did not measure central oxytocin directly.
Model-written summary. Check it against the paper before relying on it.
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Claims the paper makes
0 of 55 cited sources checked · 0 supported · 0 flagged
- Findingown data
Treatment condition had a statistically significant main effect on the primary outcome of overt emotion salience as measured by emotional ratings of faces (η2=0.18).
“We observed an omnibus main effect of treatment on the primary outcome measure of overt emotion salience as measured by emotional ratings of faces (η2=0.18).”
- Also stated in: § Primary outcome measures · plain
“Treatment condition had a statistically significant effect on the perception of happiness in ambiguous faces, χ2(2)=6.71, P=0.03”
- Also stated in: § Primary outcome measures · plain
“For comparison, a repeated measures ANOVA revealed a similar outcome to the LMM with a significant main effect (F(2, 32)=3.49, P=0.04), which was associated with a large effect size (η2=0.18).”
Quote in the paperSubstantial claim - Also stated in: § Primary outcome measures · plain
- Findingown data
There was a main effect of treatment on perception of anger in ambiguous faces that was on the border of statistical significance (χ2(2)=4.83, P=0.09).
“There was also evidence of a main effect of treatment on the perception of anger in ambiguous faces, but this was on the border of statistical significance, χ2(2)=4.83, P=0.09”
Quote in the paperNot a substantial claim - Findingown data
There was no significant effect of treatment on happy ratings of happy faces (χ2(2)=1.19, P=0.55).
“There was no significant effect of treatment on the happy ratings of happy faces (χ2(2)=1.19, P=0.55”
Quote in the paperNot a substantial claim - Findingown data
The increase in anger ratings after 24IU oxytocin compared to placebo was on the border of statistical significance (P=0.07, d=0.64).
“Tukey-adjusted multiple comparisons revealed that the increase in anger ratings after 24IU compared to placebo treatments was also on the border of statistical significance (P=0.07, d=0.64).”
Quote in the paperNot a substantial claim - Findingown data
There was no statistically significant increase in overt emotion salience after 24IU oxytocin compared to placebo (P=0.12, d=0.4).
“There was no statistically significant increase after 24IU treatment (P=0.12, d=0.4).”
- Also stated in: § Primary outcome measures · plain
“There was no significant difference in the perception of happiness between 24IU and placebo (P=0.12, d=0.4)”
Quote in the paperSubstantial claim - Also stated in: § Primary outcome measures · plain
- Findingown data
Compared to placebo, 8IU oxytocin increased overt emotion salience (ratings of happiness in ambiguous faces) (P=0.02, d=0.63).
“Compared to placebo, 8IU treatment increased overt emotion salience (P=0.02, d=0.63).”
- Also stated in: § Primary outcome measures · plain
“ratings of happiness after 8IU oxytocin were significantly higher than ratings after placebo (P=0.02), a difference associated with a medium-to-large effect size (d=0.63).”
Quote in the paperSubstantial claim - Also stated in: § Primary outcome measures · plain
- Findingown data
There was no significant difference in perception of happiness between 8IU and 24IU oxytocin (P=0.8, d=0.18).
“or 8IU and 24IU (P=0.8; d=0.18).”
Quote in the paperSubstantial claim - Findingown data
8IU oxytocin treatment did not significantly increase peripheral blood plasma oxytocin concentrations.
“The effects after 8IU oxytocin were observed despite no significant increase in peripheral blood plasma oxytocin concentrations.”
Quote in the paperSubstantial claim - Findingown data
There was no significant effect of treatment on RMET performance (χ2(2)=3.83, P=0.15).
“There was also no significant effect of treatment (χ2(2)=3.83, P=0.15; Figure 3) or visit order (that is, practice effects; χ2(2)=1.79, P=0.41) on RMET performance.”
- Also stated in: § Abstract · plain
“We found no significant effects for reading the mind in the eyes task performance or secondary outcome social-cognitive tasks (emotional dot probe and face-morphing).”
Quote in the paperSubstantial claim - Also stated in: § Abstract · plain
- Findingown data
There were no significant effects of treatment on secondary outcome social-cognitive tasks (emotional dot probe and face-morphing).
“We found no significant effects for reading the mind in the eyes task performance or secondary outcome social-cognitive tasks (emotional dot probe and face-morphing).”
Quote in the paperSubstantial claim - Findingown data
There was no significant effect of visit order on RMET performance (χ2(2)=1.79, P=0.41).
“There was also no significant effect of treatment (χ2(2)=3.83, P=0.15; Figure 3) or visit order (that is, practice effects; χ2(2)=1.79, P=0.41) on RMET performance.”
Quote in the paperNot a substantial claim - Findingown data
Peripheral oxytocin concentrations were increased after 24IU compared to 8IU.
“Post-hoc comparisons (Tukey-adjusted) revealed increased peripheral oxytocin concentrations after 24IU compared to 8IU (P=0.01) and placebo (P<0.001).”
Quote in the paperNot a substantial claim - Findingown data
There was no statistically significant main effect of treatment condition on speed or accuracy of detection for happy face morphs.
“There was no statistically significant main effect of treatment condition on speed or accuracy of detection for happy (speed: χ2(2)=0.02, P=0.99; accuracy: χ2(2)=0.43, P=0.8) or angry (speed: χ2(2)=0.23, P=0.89; accuracy: χ2(2)=5.39, P=0.07) face morphs (Supplementary Table S1).”
Quote in the paperNot a substantial claim - Findingown data
There was no main effect of treatment condition on peripheral AVP concentrations.
“Regarding peripheral AVP concentrations (Figure 4b), there was no main effect of treatment condition (χ2(2)=2.03, P=0.36), time (χ2(1)=1.89, P=0.17), or treatment × time interaction (χ2(2)=4.2, P=0.12).”
Quote in the paperNot a substantial claim - Findingown data
The treatment × time interaction effect on peripheral oxytocin concentrations was on the border of statistical significance.
“There was no main effect of time (χ2(1)=0.3, P=0.58), however, the treatment × time interaction effect was on the border of statistical significance (χ2(2)=5.37, P=0.07).”
Quote in the paperNot a substantial claim - Findingown data
There was no treatment condition effect on peripheral oxytocin concentrations at baseline.
“Simple main effects revealed no treatment condition effect at baseline (χ2(2)=0.17, P=0.92); however, there was a treatment condition, simple main effect on peripheral oxytocin concentrations post treatment administration (χ2(2)=13.79, P=0.001).”
Quote in the paperNot a substantial claim - Findingown data
The main effect of treatment condition on peripheral oxytocin concentrations was on the border of statistical significance.
“The main effect of treatment condition on peripheral oxytocin concentrations was on the border of statistical significance (χ2(2)=5.48, P=0.06; Figure 4a).”
Quote in the paperNot a substantial claim - Findingown data
There was no main effect of time on peripheral oxytocin concentrations.
“There was no main effect of time (χ2(1)=0.3, P=0.58), however, the treatment × time interaction effect was on the border of statistical significance (χ2(2)=5.37, P=0.07).”
Quote in the paperNot a substantial claim - Findingown data
There was no difference in peripheral oxytocin concentration after 8IU and placebo.
“There was no difference in peripheral oxytocin concentration after 8IU and placebo (P=0.45).”
Quote in the paperNot a substantial claim - Findingown data
There was no main effect of treatment on attentional bias towards angry faces in the dot probe task.
“Results from the dot probe task also revealed there was no main effect of treatment on attentional bias towards happy (χ2(2)=2.48, P=0.29) or angry (χ2(2)=0.76, P=0.68) faces (Supplementary Table S1).”
Quote in the paperNot a substantial claim - Findingown data
Treatment effects on speed of identifying faces for correct trials only were similar for happy and angry faces.
“Treatment effects on speed of identifying faces for correct trials only were similar for happy (74% of all trials; χ2(2)=2.8, P=0.25) and angry faces (70% of all trials; χ2(2)=0.18, P=0.91).”
Quote in the paperNot a substantial claim - Findingown data
Peripheral oxytocin concentrations were increased after 24IU compared to placebo.
“Post-hoc comparisons (Tukey-adjusted) revealed increased peripheral oxytocin concentrations after 24IU compared to 8IU (P=0.01) and placebo (P<0.001).”
Quote in the paperNot a substantial claim - Findingown data
There was a treatment condition simple main effect on peripheral oxytocin concentrations post treatment administration.
“Simple main effects revealed no treatment condition effect at baseline (χ2(2)=0.17, P=0.92); however, there was a treatment condition, simple main effect on peripheral oxytocin concentrations post treatment administration (χ2(2)=13.79, P=0.001).”
Quote in the paperNot a substantial claim - Findingown data
There was no statistically significant main effect of treatment condition on speed or accuracy of detection for angry face morphs.
“There was no statistically significant main effect of treatment condition on speed or accuracy of detection for happy (speed: χ2(2)=0.02, P=0.99; accuracy: χ2(2)=0.43, P=0.8) or angry (speed: χ2(2)=0.23, P=0.89; accuracy: χ2(2)=5.39, P=0.07) face morphs (Supplementary Table S1).”
Quote in the paperNot a substantial claim - Findingown data
There was no main effect of treatment on attentional bias towards happy faces in the dot probe task.
“Results from the dot probe task also revealed there was no main effect of treatment on attentional bias towards happy (χ2(2)=2.48, P=0.29) or angry (χ2(2)=0.76, P=0.68) faces (Supplementary Table S1).”
Quote in the paperNot a substantial claim - Findingown data
There was no main effect of time on peripheral cortisol concentrations.
“There was also no main effect of treatment (χ2(2)=0.24, P=0.89), time (χ2(1)=1.65, P=0.2), or treatment × time interaction (χ2(2)=0.34, P=0.84) for peripheral cortisol concentrations (Figure 4c).”
Quote in the paperNot a substantial claim - Findingown data
Adverse events were distributed across the three-treatment arms (8IU, 4 reports; 24IU, 4 reports; placebo, 2 reports).
“Adverse events reported after treatment administrations were transient and easily tolerated (for example, dizziness associated with blood collection, fatigue and headache), and were distributed across the three-treatment arms (8IU, 4 reports; 24IU, 4 reports; and placebo, 2 reports).”
Quote in the paperNot a substantial claim - Findingown data
There was no main effect of time on peripheral AVP concentrations.
“Regarding peripheral AVP concentrations (Figure 4b), there was no main effect of treatment condition (χ2(2)=2.03, P=0.36), time (χ2(1)=1.89, P=0.17), or treatment × time interaction (χ2(2)=4.2, P=0.12).”
Quote in the paperNot a substantial claim - Findingown data
There was no treatment × time interaction on peripheral AVP concentrations.
“Regarding peripheral AVP concentrations (Figure 4b), there was no main effect of treatment condition (χ2(2)=2.03, P=0.36), time (χ2(1)=1.89, P=0.17), or treatment × time interaction (χ2(2)=4.2, P=0.12).”
Quote in the paperNot a substantial claim - Findingown data
We did not observe an effect on RMET performance in the present older sample of adult males with ASD.
“Prior research using a similar sample size (n=16) demonstrated that intranasal oxytocin improves RMET performance in male adolescents with ASD;19 however, we did not observe an effect on RMET performance in the present older sample of adult males with ASD.”
Quote in the paperSubstantial claim - Findingown data
There were no statistically significant main effects on secondary outcome measures (dot probe and face-morphing).
“There were no statistically significant main effects on the RMET primary outcome measure, or secondary outcome measures (dot probe and face-morphing).”
Quote in the paperNot a substantial claim - Findingown data
There was no main effect of treatment on peripheral cortisol concentrations.
“There was also no main effect of treatment (χ2(2)=0.24, P=0.89), time (χ2(1)=1.65, P=0.2), or treatment × time interaction (χ2(2)=0.34, P=0.84) for peripheral cortisol concentrations (Figure 4c).”
Quote in the paperNot a substantial claim - Findingown data
There was no significant main effect of treatment condition on state anxiety as measured by the STAI-state questionnaire.
“There was no significant main effect of treatment condition on state anxiety, as measured by the STAI-state questionnaire, (χ2(2)=0.65, P=0.72) but a significant time effect (χ2(1)=17.45, P<0.001) with a reduction of ratings from baseline to the conclusion of testing.”
Quote in the paperNot a substantial claim - Findingown data
There was no significant difference in mean rating of happiness between 8IU and 24IU oxytocin.
“Although there was no significant difference in mean rating of happiness between 8IU and 24IU oxytocin, only scores after 8IU were significantly higher than ratings after placebo treatment.”
Quote in the paperSubstantial claim - Findingown data
There were no statistically significant main effects on the RMET primary outcome measure.
“There were no statistically significant main effects on the RMET primary outcome measure, or secondary outcome measures (dot probe and face-morphing).”
Quote in the paperSubstantial claim - Findingown data
Only scores after 8IU oxytocin were significantly higher than ratings after placebo treatment.
“Although there was no significant difference in mean rating of happiness between 8IU and 24IU oxytocin, only scores after 8IU were significantly higher than ratings after placebo treatment.”
Quote in the paperSubstantial claim - Findingown data
Adverse events reported after treatment administrations were transient and easily tolerated.
“Adverse events reported after treatment administrations were transient and easily tolerated (for example, dizziness associated with blood collection, fatigue and headache), and were distributed across the three-treatment arms (8IU, 4 reports; 24IU, 4 reports; and placebo, 2 reports).”
Quote in the paperNot a substantial claim - Findingown data
There was no treatment × time interaction on peripheral cortisol concentrations.
“There was also no main effect of treatment (χ2(2)=0.24, P=0.89), time (χ2(1)=1.65, P=0.2), or treatment × time interaction (χ2(2)=0.34, P=0.84) for peripheral cortisol concentrations (Figure 4c).”
Quote in the paperNot a substantial claim - Findingown data
There was no statistically significant relationship between nasal valve dimensions or total volume of the nasal cavity and performance on any of the social cognition tasks.
“There was also no statistically significant relationship between nasal valve dimensions or total volume of the nasal cavity (2–5 cm deep from the nostrils) and performance on any of the social cognition tasks (Supplementary Tables S2 and S3).”
Quote in the paperNot a substantial claim - Findingown data
A single 8IU intranasal administration of oxytocin significantly increases the overt emotional salience of happiness in ambiguous faces compared to placebo.
“Here, we show that a single 8IU intranasal administration of oxytocin significantly increases the overt emotional salience of happiness in ambiguous faces compared to placebo, providing additional support that oxytocin treatment may help ameliorate a core feature of ASD.”
Quote in the paperSubstantial claim - Findingown data
There was no significant treatment × time interaction for state anxiety.
“However, there was no significant treatment × time interaction (χ2(2)=0.5, P=0.78) for state anxiety.”
Quote in the paperNot a substantial claim - Findingown data
We did not find any statistically main effects for performance on the secondary outcome dot probe or face-morphing measures.
“In addition, we did not find any statistically main effects for performance on the secondary outcome dot probe or face-morphing measures.”
Quote in the paperSubstantial claim - Findingown data
After placebo administration the present sample scored 65.7% correct on the RMET.
“For comparison, after placebo administration the present sample scored 65.7% correct on the RMET, whereas previous research examining the impact of oxytocin in an ASD population reported scores of approximately 45% correct RMET items.19”
Quote in the paperSubstantial claim - Findingcitation
The present score after placebo administration is slightly higher than ASD norms for RMET performance (61%).
“The present score after placebo administration is also slightly higher than ASD norms for RMET performance (61%).49”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [49] Baron-Cohen S, Wheelwright S, Hill J, Raste Y, Plumb I . The "Reading the Mind in the Eyes" Test revised version: a study with normal adults, and adults with Asperger syndrome or high-functioning autism. J Child Psychol Psychiatry 2001; 42: 241–251. source
Not checked in the free run.
- Premisecitation
The majority of ASD oxytocin trials in older adolescents and adults evaluated 24 international units of nasal spray oxytocin.
“The majority of ASD oxytocin trials in older adolescents and adults evaluated 24 international units (IU) of nasal spray oxytocin,35”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [35] Alvares GA, Quintana DS, Whitehouse AJ . Beyond the hype and hope: critical considerations for intranasal oxytocin research in autism spectrum disorder. Autism Res 2016; 10: 25–41. source
Not checked in the free run.
- Interpretationown data
A low dose of oxytocin can significantly modulate overt emotion salience despite minimal systemic exposure.
“with results indicating that a low dose of oxytocin can significantly modulate overt emotion salience despite minimal systemic exposure.”
Quote in the paperSubstantial claim - Premisecitation
Pre-clinical research demonstrates that lower doses of oxytocin may be more efficacious.
“despite pre-clinical research demonstrating that lower doses may be more efficacious.36, 37”
Quote in the paperSubstantial claim0 of 2 sources checked- cites [36] Benelli A, Bertolini A, Poggioli R, Menozzi B, Basaglia R, Arletti R . Polymodal dose–response curve for oxytocin in the social recognition test. Neuropeptides 1995; 28: 251–255. source
Not checked in the free run.
- cites [37] Popik P, Vetulani J, Van Ree JM . Low doses of oxytocin facilitate social recognition in rats. Psychopharmacology 1992; 106: 71–74. source
Not checked in the free run.
- Premisecitation
The means of transport of oxytocin from the nasal cavity to the brain is not well understood.
“First, the means of transport of oxytocin from the nasal cavity to the brain is not well understood.34”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [34] Leng G, Ludwig M . Intranasal oxytocin: myths and delusions. Biol Psychiatry 2016; 79: 243–250. source
Not checked in the free run.
- Premisecitation
The Breath Powered device mechanism has been shown to produce improved delivery of drug beyond the nasal valve to target regions in the upper and posterior nasal cavity.
“This mechanism has been shown to produce improved delivery of drug beyond the nasal valve to target regions in the upper and posterior nasal cavity.46”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [46] Djupesland PG . Nasal drug delivery devices: characteristics and performance in a clinical perspective—a review. Drug Deliv Transl Res 2012; 3: 42–62. source
Not checked in the free run.
- Premisecitation
17 is the median sample size of single-dose crossover oxytocin studies in ASD.
“considering that 17 is the median sample size of single-dose crossover oxytocin studies in ASD.35”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [35] Alvares GA, Quintana DS, Whitehouse AJ . Beyond the hype and hope: critical considerations for intranasal oxytocin research in autism spectrum disorder. Autism Res 2016; 10: 25–41. source
Not checked in the free run.
- Interpretationcitation
Nose-to-brain transport, rather than transport across the blood-brain barrier via peripherally circulating oxytocin, influences social cognition.
“This indicates that nose-to-brain transport, rather than transport across the blood–brain barrier via peripherally circulating oxytocin, influences social cognition.”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [40] Quintana DS, Westlye LT, Rustan ØG, Tesli N, Poppy CL, Smevik H et al. Low dose oxytocin delivered intranasally with Breath Powered device affects social-cognitive behavior: a randomized 4-way crossover trial with nasal cavity dimension assessment. Transl Psychiatry 2015; 5: 1–9. source
Not checked in the free run.
- The authors state this as an assumption: Oxytocin travels via olfactory and trigeminal nerves to the brain rather than across the blood–brain barrier via circulating blood.
- Premisecitation
Currently used pump-actuated conventional nasal spray devices for intranasal oxytocin administration are not optimal for the delivery of molecules to the brain.
“Third, currently used pump-actuated conventional nasal spray devices for intranasal oxytocin administration are not optimal for the delivery of molecules to the brain.32”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [32] Guastella AJ, Hickie IB, McGuinness MM, Otis M, Woods EA, Disinger HM et al. Recommendations for the standardisation of oxytocin nasal administration and guidelines for its reporting in human research. Psychoneuroendocrinology 2013; 38: 612–625. source
Not checked in the free run.
- Premisecitation
The Breath Powered device was shown to enhance deposition in intranasal sites targeted for nose-to-brain transport.
“using a novel Breath Powered device shown to enhance deposition in intranasal sites targeted for nose-to-brain transport.38, 39”
Quote in the paperSubstantial claim0 of 2 sources checked- cites [38] Djupesland PG, Skretting A, Winderen M, Holand T . Breath actuated device improves delivery to target sites beyond the nasal valve. Laryngoscope 2006; 116: 466–472. source
Not checked in the free run.
- cites [39] Djupesland PG, Skretting A . Nasal deposition and clearance in man: comparison of a bidirectional powder device and a traditional liquid spray pump. J Aerosol Med Pulm Drug Deliv 2012; 25: 280–289. source
Not checked in the free run.
- Premisecitation
The upper-posterior region of the nasal cavity is innervated by olfactory and trigeminal nerve fibers that are believed to be key targets for nose-to-brain delivery.
“which is innervated by the olfactory and trigeminal nerve fibers that are believed to be key targets for nose-to-brain delivery.22”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [22] Quintana DS, Guastella AJ, Westlye LT, Andreassen OA . The promise and pitfalls of intranasally administering psychopharmacological agents for the treatment of psychiatric disorders. Mol Psychiatry 2016; 21: 29–38. source
Not checked in the free run.
- Premisecitation
The number of participants needed to achieve 80% power for the small-to-medium average effect size of d=0.32 in a within-participants trial is 79 individuals with ASD.
“recruiting and testing 79 individuals with ASD in a within-participants trial—the number of participants needed to achieve 80% power for the small-to-medium average effect size of d=0.32—would be difficult for many research groups”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [28] Walum H, Waldman ID, Young LJ . Statistical and methodological considerations for the interpretation of intranasal oxytocin studies. Biol Psychiatry 2016; 79: 251–257. source
Not checked in the free run.
- Premisecitation
Only a small fraction of liquid delivered with conventional nasal spray devices reaches the upper-posterior region of the nasal cavity.
“Only a small fraction of liquid delivered with such devices reaches the upper-posterior region of the nasal cavity,38”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [38] Djupesland PG, Skretting A, Winderen M, Holand T . Breath actuated device improves delivery to target sites beyond the nasal valve. Laryngoscope 2006; 116: 466–472. source
Not checked in the free run.
- Premisecitation
ASD is associated with deficits in identifying both positive and negative emotions.
“As ASD is associated with deficits in identifying both positive and negative emotions, the social salience tasks examined the perception of both happiness and anger in social stimuli.42”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [42] Wright B, Clarke N, Jordan J, Young AW, Clarke P, Miles J et al. Emotion recognition in faces and the use of visual context Vo in young people with high-functioning autism spectrum disorders. Autism 2008; 12: 607–626. source
Not checked in the free run.
- Premisecitation
Many oxytocin studies are statistically underpowered, with clinical studies having an average of 12% statistical power to detect the median Cohen's d of 0.32.
“Many oxytocin studies are statistically underpowered, with clinical studies having an average of 12% statistical power to detect the median Cohen’s d of 0.32.28”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [28] Walum H, Waldman ID, Young LJ . Statistical and methodological considerations for the interpretation of intranasal oxytocin studies. Biol Psychiatry 2016; 79: 251–257. source
Not checked in the free run.
- Premisecitation
Neural evidence from the same data set suggested that intranasal 8IU oxytocin (but not the other oxytocin treatments) reduced amygdala activation during the presentation of social stimuli.
“Moreover, neural evidence from the same data set also suggested that intranasal 8IU (but not the other oxytocin treatments) reduced amygdala activation during the presentation of social stimuli.41”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [41] Quintana DS, Westlye LT, Alnæs D, Rustan Ø, Kaufmann T, Smerud K et al. Low dose intranasal oxytocin delivered with Breath Powered device dampens amygdala response to emotional stimuli: a peripheral effect-controlled within-subjects randomized dose-response fMRI trial. Psychoneuroendocrinology 2016; 69: 180–188. source
Not checked in the free run.
- Study design and conductown data
A power analysis indicated that a sample size of 18 would achieve 90% power for a repeated measures design, given a large effect size (partial η2=0.14) and α=0.05.
“A power analysis using G*Power software45 indicated that a sample size of 18 would achieve 90% power for a repeated measures design, given a large effect size (partial η2=0.14) and α=0.05.”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [45] Faul F, Erdfelder E, Lang A-G, Buchner A . G* Power 3: a flexible statistical power analysis program for the social, behavioral, and biomedical sciences. Behav Res Methods 2007; 39: 175–191. source
Not checked in the free run.
- Study design and conductown data
There was no difference between treatment conditions on whether participants could correctly identify the treatment they were administered.
“A χ2 test revealed no difference between treatment conditions on whether participants could correctly identify the treatment they were administered (χ2 (2)=2.57, P=0.28).”
Quote in the paperSubstantial claim - Interpretationown data
Comparing these two outcomes provides tentative evidence that oxytocin treatment in adult ASD may facilitate a shift towards neurotypical responses to social stimuli, at least for positive stimuli.
“Comparing these two outcomes provides tentative evidence that oxytocin treatment in adult ASD may facilitate a shift towards neurotypical responses to social stimuli, at least for positive stimuli.”
Quote in the paperSubstantial claim - Interpretationown data
The absence of an RMET effect may have been because of ceiling effects on performance due to the sampling of a population with less severe ASD.
“This may have been because of ceiling effects on performance due to the sampling of a population with less severe ASD.”
Quote in the paperSubstantial claim - Premisecitation
Neurotypical adult males that completed the same task after placebo (n=16) had an average happiness rating of ambiguous faces of 2.51 (s.d.=0.13).
“For reference, compared to happiness rating of ambiguous faces in the present sample (Table 1), neurotypical adult males that completed the same task after placebo (n=16) had an average happiness rating of ambiguous faces of 2.51 (s.d.=0.13).40”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [40] Quintana DS, Westlye LT, Rustan ØG, Tesli N, Poppy CL, Smevik H et al. Low dose oxytocin delivered intranasally with Breath Powered device affects social-cognitive behavior: a randomized 4-way crossover trial with nasal cavity dimension assessment. Transl Psychiatry 2015; 5: 1–9. source
Not checked in the free run.
- Premisecitation
Individuals with ASD are less sensitive to both positively and negatively valenced social information.
“Individuals with ASD are less sensitive to both positively and negatively valenced social information.42, 64, 65”
Quote in the paperSubstantial claim0 of 3 sources checked- cites [42] Wright B, Clarke N, Jordan J, Young AW, Clarke P, Miles J et al. Emotion recognition in faces and the use of visual context Vo in young people with high-functioning autism spectrum disorders. Autism 2008; 12: 607–626. source
Not checked in the free run.
- cites [64] Wallace GL, Case LK, Harms MB, Silvers JA, Kenworthy L, Martin A . Diminished sensitivity to sad facial expressions in high functioning autism spectrum disorders is associated with symptomatology and adaptive functioning. J Autism Dev Disord 2011; 41: 1475–1486. source
Not checked in the free run.
- cites [65] Kennedy DP, Adolphs R . Perception of emotions from facial expressions in high-functioning adults with autism. Neuropsychologia 2012; 50: 3313–3319. source
Not checked in the free run.
- Premisecitation
Prior research using a similar sample size (n=16) demonstrated that intranasal oxytocin improves RMET performance in male adolescents with ASD.
“Prior research using a similar sample size (n=16) demonstrated that intranasal oxytocin improves RMET performance in male adolescents with ASD;19 however, we did not observe an effect on RMET performance in the present older sample of adult males with ASD.”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [19] Guastella AJ, Einfeld SL, Gray KM, Rinehart NJ, Tonge BJ, Lambert TJ et al. Intranasal oxytocin improves emotion recognition for youth with autism spectrum disorders. Biol Psychiatry 2010; 67: 692–694. source
Not checked in the free run.
- Interpretationown data
The data is somewhat consistent with the social salience hypothesis, which suggests that oxytocin modulates the salience of both positive and negative social cues.
“The data is somewhat consistent with the social salience hypothesis,66 which suggests that oxytocin modulates the salience of both positive and negative social cues.”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [66] Shamay-Tsoory SG, Abu-Akel A . The social salience hypothesis of oxytocin. Biol Psychiatry 2016; 79: 194–202. source
Not checked in the free run.
- Interpretationown data
Oxytocin treatment may help ameliorate a core feature of ASD.
“Here, we show that a single 8IU intranasal administration of oxytocin significantly increases the overt emotional salience of happiness in ambiguous faces compared to placebo, providing additional support that oxytocin treatment may help ameliorate a core feature of ASD.”
Quote in the paperSubstantial claim - Interpretationcitation
The present result adds to existing behavioral and neural evidence that lower oxytocin doses delivered with the Breath Powered device may be more efficacious, at least for single administration trials.
“The present result also adds to existing behavioral40 and neural41 evidence that lower oxytocin doses delivered with the Breath Powered device may be more efficacious, at least for single administration trials.”
Quote in the paperSubstantial claim0 of 2 sources checked- cites [40] Quintana DS, Westlye LT, Rustan ØG, Tesli N, Poppy CL, Smevik H et al. Low dose oxytocin delivered intranasally with Breath Powered device affects social-cognitive behavior: a randomized 4-way crossover trial with nasal cavity dimension assessment. Transl Psychiatry 2015; 5: 1–9. source
Not checked in the free run.
- cites [41] Quintana DS, Westlye LT, Alnæs D, Rustan Ø, Kaufmann T, Smerud K et al. Low dose intranasal oxytocin delivered with Breath Powered device dampens amygdala response to emotional stimuli: a peripheral effect-controlled within-subjects randomized dose-response fMRI trial. Psychoneuroendocrinology 2016; 69: 180–188. source
Not checked in the free run.
- Premisecitation
Animal research has shown the potential for long-term adverse effects after large oxytocin doses.
“Animal research has shown the potential for long-term adverse effects after large oxytocin doses.67, 68”
Quote in the paperSubstantial claim0 of 2 sources checked- cites [67] Bales KL, Perkeybile AM, Conley OG, Lee MH, Guoynes CD, Downing GM et al. Chronic intranasal oxytocin causes long-term impairments in partner preference formation in male prairie voles. Biol Psychiatry 2013; 74: 180–188. source
Not checked in the free run.
- cites [68] Bales KL, van Westerhuyzen JA, Lewis-Reese AD, Grotte ND, Lanter JA, Carter CS . Oxytocin has dose-dependent developmental effects on pair-bonding and alloparental care in female prairie voles. Horm Behav 2007; 52: 274–279. source
Not checked in the free run.
- Premisecitation
Previous research examining the impact of oxytocin in an ASD population reported scores of approximately 45% correct RMET items.
“For comparison, after placebo administration the present sample scored 65.7% correct on the RMET, whereas previous research examining the impact of oxytocin in an ASD population reported scores of approximately 45% correct RMET items.19”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [19] Guastella AJ, Einfeld SL, Gray KM, Rinehart NJ, Tonge BJ, Lambert TJ et al. Intranasal oxytocin improves emotion recognition for youth with autism spectrum disorders. Biol Psychiatry 2010; 67: 692–694. source
Not checked in the free run.
- Premisecitation
Previous effects on the face-morphing or the dot probe tasks occurred when these tasks were performed during this time period.
“Indeed, previous effects on the face-morphing or the dot probe tasks occurred at when these tasks were performed during this time period.55, 56, 57, 58”
Quote in the paperSubstantial claim0 of 3 sources checked- cites [55] Domes G, Sibold M, Schulze L, Lischke A, Herpertz S, Heinrichs M . Intranasal oxytocin increases covert attention to positive social cues. Psychol Med 2013; 43: 1747–1753. source
Not checked in the free run.
- cites [56] Clark-Elford R, Nathan PJ, Auyeung B, Mogg K, Bradley BP, Sule A et al. Effects of oxytocin on attention to emotional faces in healthy volunteers and highly socially anxious males. Int J Neuropsychopharmacol 2014; 18: pyu012.
Not checked in the free run.
- cites [57] Marsh AA, Henry HY, Pine DS, Blair R . Oxytocin improves specific recognition of positive facial expressions. Psychopharmacology 2010; 209: 225–232. source
Not checked in the free run.
- Study design and conductnone given
A measure of disorder severity was not collected.
“Despite fulfilling criteria for ASD, a measure of disorder severity was not collected.”
Quote in the paperSubstantial claim - Premisecitation
Research is increasingly pointing towards lower oxytocin doses being more (or at least equivalently) efficacious than higher doses.
“Research is increasingly pointing towards lower oxytocin doses being more (or at least equivalently) efficacious than higher doses.36, 37, 72, 73”
Quote in the paperSubstantial claim0 of 3 sources checked- cites [36] Benelli A, Bertolini A, Poggioli R, Menozzi B, Basaglia R, Arletti R . Polymodal dose–response curve for oxytocin in the social recognition test. Neuropeptides 1995; 28: 251–255. source
Not checked in the free run.
- cites [37] Popik P, Vetulani J, Van Ree JM . Low doses of oxytocin facilitate social recognition in rats. Psychopharmacology 1992; 106: 71–74. source
Not checked in the free run.
- cites [72] Hall SS, Lightbody AA, McCarthy BE, Parker KJ, Reiss AL . Effects of intranasal oxytocin on social anxiety in males with fragile X syndrome. Psychoneuroendocrinology 2012; 37: 509–518. source
Not checked in the free run.
- Interpretationreasoning
The effect is robust across a relatively heterogeneous male ASD population with a range of verbal, non-verbal, and general cognitive function aptitudes.
“However, as a main effect on a primary outcome was observed, without any need for subtyping participants on any demographic or clinical variable, this suggests that the effect is robust across a relatively heterogeneous male ASD population with a range of verbal, non-verbal, and general cognitive function aptitudes (WASI full-scale IQ mean: 109.8, s.d.: 12.1, range: 89–138).”
Quote in the paperSubstantial claim - Premisecitation
Only minimal adverse events have been reported in oxytocin ASD trials to date.
“Although only minimal adverse events have been reported in oxytocin ASD trials to date,69 it is still crucial to determine the lowest efficacious dose to limit adverse events and exposure to widely distributed peripheral oxytocin receptors.70”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [69] Ooi Y, Weng S, Kossowsky J, Gerger H, Sung M . Oxytocin and autism spectrum disorders: a systematic review and meta-analysis of randomized controlled trials. Pharmacopsychiatry 2016; 50: 5–13. source
Not checked in the free run.
- Study design and conductreasoning
The study sample may not have had enough power to detect differences in the secondary tasks.
“Finally, the study sample was appropriately powered to detect a main effect for the overt emotion salience tasks, however, it may not have had enough power to detect differences in these secondary tasks.”
Quote in the paperSubstantial claim - Study design and conductnone given
The study sample was appropriately powered to detect a main effect for the overt emotion salience tasks.
“Finally, the study sample was appropriately powered to detect a main effect for the overt emotion salience tasks, however, it may not have had enough power to detect differences in these secondary tasks.”
Quote in the paperSubstantial claim - Interpretationreasoning
The pattern supports potential to achieve therapeutic benefit while minimizing adverse effects due to peripheral oxytocin receptor activation.
“This suggests that 8 IU oxytocin delivered with the Breath Powered device increased emotion sensitivity without significantly elevating peripheral oxytocin, which supports the possibility of direct nose-to-brain transport with this delivery mechanism and potential to achieve therapeutic benefit while minimizing adverse effects due to peripheral oxytocin receptor activation.”
Quote in the paperSubstantial claim - Interpretationown data
This social-cognitive effect of oxytocin administration was achieved with minimal systemic exposure.
“Moreover, this social-cognitive effect of oxytocin administration was achieved with minimal systemic exposure.”
Quote in the paperSubstantial claim - Study design and conductcitation
A power analysis based on effect sizes using the same primary outcome measure in healthy controls revealed a sample of 18 was sufficient to achieve statistical power of 90%.
“However, a power analysis based on effect sizes using the same primary outcome measure in healthy controls40 revealed a sample of 18 was sufficient to achieve statistical power of 90%, which is exceptionally higher than the 12% average statistical power of oxytocin clinical trials to detect the mean effect size across trials.28”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [40] Quintana DS, Westlye LT, Rustan ØG, Tesli N, Poppy CL, Smevik H et al. Low dose oxytocin delivered intranasally with Breath Powered device affects social-cognitive behavior: a randomized 4-way crossover trial with nasal cavity dimension assessment. Transl Psychiatry 2015; 5: 1–9. source
Not checked in the free run.
- Interpretationown data
Our study provides initial evidence that a low dose of oxytocin delivered with the Breath Powered device modulates overt social salience in ASD.
“Altogether, our study provides initial evidence that a low dose of oxytocin delivered with the Breath Powered device modulates overt social salience in ASD.”
Quote in the paperSubstantial claim - Interpretationnone given
This is the first demonstration of such an effect in a heterogeneous adult male ASD population.
“To our knowledge, this is the first demonstration of such an effect in a heterogeneous adult male ASD population.”
Quote in the paperSubstantial claim
- May combine two claims. 14
- Classified as probably not a substantial claim. 25
May combine two claims.
Findingown dataExploratory post-hoc analysis suggested that anger ratings were increased after 24IU oxytocin treatment compared to placebo, a difference coupled with a medium effect size, albeit non-significant.
“Exploratory post-hoc analysis, albeit non-significant, suggested that anger ratings were increased after 24IU oxytocin treatment compared to placebo, a difference coupled with a medium effect size.”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S3 (load-bearing).
Findingown dataThere was no effect of treatment group on the total volume of the nasal cavity 2-5 cm deep from the nostrils.
“There was also no effect of treatment group on nasal valve dimensions (χ2(2)=2.65, P=0.27), or the total volume of the nasal cavity 2–5 cm deep from the nostrils (χ2(2)=1.23, P=0.54).”
Quote in the paperNot a substantial claimMay combine two claims.
Findingown dataThere was a main effect of treatment condition on the perception of anger associated with a medium-to-large effect size, but it was on the border of statistical significance.
“There was also a main effect of treatment condition on the perception of anger associated with a medium-to-large effect size; however, this was on the border of statistical significance, making conclusions less clear.”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S3 (load-bearing).
Findingown dataThere was a significant time effect on state anxiety with a reduction of ratings from baseline to the conclusion of testing.
“There was no significant main effect of treatment condition on state anxiety, as measured by the STAI-state questionnaire, (χ2(2)=0.65, P=0.72) but a significant time effect (χ2(1)=17.45, P<0.001) with a reduction of ratings from baseline to the conclusion of testing.”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S3 (load-bearing).
Findingown dataThere was no effect of treatment group on nasal valve dimensions.
“There was also no effect of treatment group on nasal valve dimensions (χ2(2)=2.65, P=0.27), or the total volume of the nasal cavity 2–5 cm deep from the nostrils (χ2(2)=1.23, P=0.54).”
Quote in the paperNot a substantial claimClassified as probably not a substantial claim.
PremisecitationThe oxytocin system is important in mammalian social behaviors including social memory, recognition and attachment.
“The importance of the oxytocin system in mammalian social behaviors including social memory, recognition and attachment has been established using a variety of animal models since 1980s.”
Quote in the paperSubstantial claim0 of 3 sources checked- cites [10] Pedersen CA, Ascher JA, Monroe YL, Prange AJ . Oxytocin induces maternal behavior in virgin female rats. Science 1982; 216: 648–650. source
Not checked in the free run.
- cites [11] Fahrbach S, Morrell J, Pfaff D . Possible role for endogenous oxytocin in estrogen-facilitated maternal behavior in rats. Neuroendocrinology 1985; 40: 526–532. source
Not checked in the free run.
- cites [12] Winslow JT, Insel TR . The social deficits of the oxytocin knockout mouse. Neuropeptides 2002; 36: 221–229. source
Not checked in the free run.
Classified as probably not a substantial claim.
PremisereasoningThere is no justification for selecting the 24 IU dose beyond precedence.
“yet there is no justification for selecting this dose beyond precedence”
Quote in the paperSubstantial claimClassified as probably not a substantial claim.
PremisecitationOxytocin modulates neural circuitry for social cognition in humans.
“modulates neural circuitry for social cognition in humans,15”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [15] Kirsch P, Esslinger C, Chen Q, Mier D, Lis S, Siddhanti S et al. Oxytocin modulates neural circuitry for social cognition and fear in humans. J Neurosci 2005; 25: 11489–11493. source
Not checked in the free run.
Classified as probably not a substantial claim.
PremisecitationA succession of studies reported modest improvements in social cognition after use of nasal oxytocin spray in both neurotypical and psychiatric populations.
“A succession of studies reported modest improvements in social cognition after use of nasal oxytocin spray in both neurotypical16, 17, 18 and psychiatric19, 20, 21 populations”
Quote in the paperSubstantial claim0 of 3 sources checked- cites [16] Guastella AJ, Mitchell PB, Dadds MR . Oxytocin increases gaze to the eye region of human faces. Biol Psychiatry 2008; 63: 3–5. source
Not checked in the free run.
- cites [17] Domes G, Heinrichs M, Michel A, Berger C, Herpertz SC . Oxytocin Improves “Mind-Reading” in Humans. Biol Psychiatry 2007; 61: 731–733. source
Not checked in the free run.
- cites [18] Guastella AJ, Mitchell PB, Mathews F . Oxytocin enhances the encoding of positive social memories in humans. Biol Psychiatry 2008; 64: 256–258. source
Not checked in the free run.
Classified as probably not a substantial claim. May combine two claims.
PremisecitationConverging evidence suggests that oxytocin increases social salience and approach-related behaviors, regardless of valence.
“with converging evidence suggesting that oxytocin increases social salience30 and approach-related behaviors,31 regardless of valence.”
Quote in the paperSubstantial claim0 of 2 sources checked- cites [30] Bartz JA, Zaki J, Bolger N, Ochsner KN . Social effects of oxytocin in humans: context and person matter. Trends Cogn Sci 2011; 15: 301–309.
Not checked in the free run.
- cites [31] Kemp AH, Guastella AJ . The role of oxytocin in human affect a novel hypothesis. Curr Dir Psychol Sci 2011; 20: 222–231. source
Not checked in the free run.
Probably not a substantial claim: may not pass S3 (load-bearing).
PremisecitationA series of negative results, mixed meta-analytic results and doubts surrounding oxytocin research methods dampened initial enthusiasm.
“However, a series of negative results,24, 25, 26 mixed meta-analytic results27 and doubts surrounding oxytocin research methods28 somewhat dampened initial enthusiasm.”
Quote in the paperNot a substantial claim0 of 3 sources checked- cites [24] Dadds MR, MacDonald E, Cauchi A, Williams K, Levy F, Brennan J . Nasal oxytocin for social deficits in childhood autism: a randomized controlled trial. J Autism Dev Disord 2014; 44: 521–531. source
Not checked in the free run.
- cites [25] Davis MC, Green MF, Lee J, Horan WP, Senturk D, Clarke AD et al. Oxytocin-augmented social cognitive skills training in schizophrenia. Neuropsychopharmacology 2014; 39: 2070–2077. source
Not checked in the free run.
- cites [26] Cacciotti-Saija C, Langdon R, Ward PB, Hickie IB, Scott E, Naismith SL et al. A double-blind randomized controlled trial of oxytocin nasal spray and social cognition training for young people with early psychosis. Schizophr Bull 2015; 41: 483–493. source
Not checked in the free run.
Classified as probably not a substantial claim.
PremisereasoningIntranasal oxytocin has emerged as a potential treatment addressing social dysfunction.
“Intranasal oxytocin has emerged as a potential treatment addressing social dysfunction.”
Quote in the paperSubstantial claimClassified as probably not a substantial claim.
PremisecitationOxytocin increases trust in humans.
“reports that oxytocin increases trust14”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [14] Kosfeld M, Heinrichs M, Zak PJ, Fischbacher U, Fehr E . Oxytocin increases trust in humans. Nature 2005; 435: 673–676. source
Not checked in the free run.
May combine two claims.
InterpretationreasoningThe corresponding average false-negative rate in oxytocin studies is large (88%), which probably contributes to poor replication rates.
“Therefore, the corresponding average false-negative rate is large (88%), which probably contributes to poor replication rates.”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [28] Walum H, Waldman ID, Young LJ . Statistical and methodological considerations for the interpretation of intranasal oxytocin studies. Biol Psychiatry 2016; 79: 251–257. source
Not checked in the free run.
May combine two claims.
PremisecitationA single administration of intranasal 8IU oxytocin modulated social cognition in neurotypical adult males, whereas intravenous administration did not, despite comparable peripheral blood concentrations of oxytocin after intranasal and intravenous oxytocin administration.
“A single administration of intranasal 8IU oxytocin-modulated social cognition, whereas intravenous administration did not, despite comparable peripheral blood concentrations of oxytocin after intranasal and intravenous oxytocin administration.40”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [40] Quintana DS, Westlye LT, Rustan ØG, Tesli N, Poppy CL, Smevik H et al. Low dose oxytocin delivered intranasally with Breath Powered device affects social-cognitive behavior: a randomized 4-way crossover trial with nasal cavity dimension assessment. Transl Psychiatry 2015; 5: 1–9. source
Not checked in the free run.
Classified as probably not a substantial claim.
Study design and conductown dataThe trial used a randomized, placebo-controlled, double-blind, three-period crossover design.
“in a double-blind, crossover, randomized, placebo-controlled trial.”
- Also stated in: § Study design · plain
“Participants received 8IU oxytocin intranasally, 24IU oxytocin intranasally, and an intranasal placebo treatment in a randomized, placebo-controlled, double-blind, three-period crossover design.”
Quote in the paperSubstantial claim- Also stated in: § Study design · plain
Probably not a substantial claim: may not pass S3 (load-bearing).
Study design and conductown dataPost-hoc tests used Tukey adjustment of critical P-values to correct for multiple comparisons.
“For any significant main effects (P<0.05), post-hoc tests were performed to compare each treatment condition (with Tukey adjustment of critical P-values to correct for multiple comparisons).”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S3 (load-bearing).
Study design and conductown dataThe study is registered at the EU Clinical Trials register.
“The study is registered at the EU Clinical Trials register (EudraCT no.: 2014-005452-26).”
Quote in the paperNot a substantial claimClassified as probably not a substantial claim. May combine two claims.
Study design and conductnone givenBoth participants and the research team were blinded to treatment.
“and both the participants and the research team were blinded to treatment.”
Quote in the paperSubstantial claimClassified as probably not a substantial claim.
Study design and conductown dataParticipants were randomized to one of six treatment sequences using a three-period, three-treatment Latin square method.
“Participants were randomized to one of six treatment sequences, using a three-period, three-treatment Latin square method (ABC—ACB—BAC—BCA—CAB—CBA in a 1:1:1 ratio; Supplementary Figure S1)”
Quote in the paperSubstantial claimProbably not a substantial claim: may not pass S3 (load-bearing).
Study design and conductown dataAn independent statistician provided the randomization code.
“An independent statistician (Smerud Medical Research International, Oslo, Norway) provided the randomization code”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S3 (load-bearing).
Study design and conductown dataThe trial was approved by the Regional Committee for Medical and Health Research Ethics.
“This trial was approved by the Regional Committee for Medical and Health Research Ethics (REC South East) and participants provided written informed consent before they participated.”
Quote in the paperNot a substantial claimClassified as probably not a substantial claim.
Study design and conductnone givenEvery randomized participant completed all three treatments.
“Every randomized participant completed all three treatments.”
Quote in the paperSubstantial claimClassified as probably not a substantial claim. May combine two claims.
Study design and conductreasoningLMMs were chosen as repeated-measure analyses to assess main effects because they do not rely on complete data sets or the assumption of compound symmetry.
“LMMs were chosen as repeated-measure analyses to assess main effects because they do not rely on complete data sets or the assumption of compound symmetry.”
Quote in the paperSubstantial claimProbably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.
PremisecitationWe previously observed a reduction in angry ratings of ambiguous faces after 8IU administration, but this was found in a sample of neurotypical adults tested in a unique fMRI environment.
“Although we previously observed a reduction in angry ratings of ambiguous faces after 8IU administration,40 this was found in a sample of neurotypical adults tested in a unique fMRI environment.”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [40] Quintana DS, Westlye LT, Rustan ØG, Tesli N, Poppy CL, Smevik H et al. Low dose oxytocin delivered intranasally with Breath Powered device affects social-cognitive behavior: a randomized 4-way crossover trial with nasal cavity dimension assessment. Transl Psychiatry 2015; 5: 1–9. source
Not checked in the free run.
May combine two claims.
Interpretationnone givenThe participant sample was a population of young adult males without intellectual disability.
“First, the participant sample was a population of young adult males without intellectual disability.”
Quote in the paperSubstantial claimClassified as probably not a substantial claim.
InterpretationreasoningAs traditional nasal spray devices deliver less liquid to nose-to-brain targets in the upper-posterior region of the nasal cavity, this could limit the fraction reaching the brain and central activity.
“As traditional nasal spray devices deliver less liquid to nose-to-brain targets in the upper-posterior region of the nasal cavity, this could limit the fraction reaching the brain and central activity.”
Quote in the paperSubstantial claimClassified as probably not a substantial claim.
InterpretationreasoningAn alternative explanation is that the timing of these two tasks (~60-80 min post-administration) may have missed peak central concentrations of oxytocin, which is thought to be around 35-50 min post-administration.
“An alternative explanation is that the timing of these two tasks (~60–80 min post-administration) may have missed peak central concentrations of oxytocin, which is thought to be around 35–50 min post-administration.”
Quote in the paperSubstantial claim- Rests on an assumption: Peak central concentrations of oxytocin occur around 35–50 min post-administration.
Probably not a substantial claim: may not pass S3 (load-bearing), S4 (based).
Interpretationreasoning24IU oxytocin delivered via traditional nasal devices may offer equivalent central levels because of substantial loss of the delivered drug.
“Alternatively, 24IU oxytocin delivered via traditional nasal devices may offer equivalent central levels because of substantial loss of the delivered drug.”
Quote in the paperNot a substantial claimMay combine two claims.
Interpretationown dataThis suggests that exogenous oxytocin might not influence the emotional salience of covert stimuli or the speed of recognizing overt emotional stimuli in young male adults with ASD.
“This suggests that exogenous oxytocin might not influence the emotional salience of covert stimuli or the speed of recognizing overt emotional stimuli in young male adults with ASD.”
Quote in the paperSubstantial claimMay combine two claims.
Interpretationown dataEven if 24IU oxytocin delivered with traditional device provides equivalent central activity as 8IU delivered with the Breath Powered device, the latter device appears to reduce peripheral exposure to oxytocin.
“Regardless, even if 24IU oxytocin delivered with traditional device provides equivalent central activity as 8IU delivered with the Breath Powered device, the latter device appears to reduce peripheral exposure to oxytocin.”
Quote in the paperSubstantial claimMay combine two claims.
InterpretationreasoningThe pattern of 8 IU oxytocin delivered with the Breath Powered device increasing emotion sensitivity without significantly elevating peripheral oxytocin supports the possibility of direct nose-to-brain transport with this delivery mechanism.
“This suggests that 8 IU oxytocin delivered with the Breath Powered device increased emotion sensitivity without significantly elevating peripheral oxytocin, which supports the possibility of direct nose-to-brain transport with this delivery mechanism and potential to achieve therapeutic benefit while minimizing adverse effects due to peripheral oxytocin receptor activation.”
Quote in the paperSubstantial claimMay combine two claims.
Interpretationown dataThere was no difference in AVP levels, suggesting no peripheral cross-reactivity.
“There was also no difference in AVP levels, suggesting no peripheral cross-reactivity, which is more likely to occur with higher levels of oxytocin exposure.71”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [71] Manning M, Misicka A, Olma A, Bankowski K, Stoev S, Chini B et al. Oxytocin and vasopressin agonists and antagonists as research tools and potential therapeutics. J Neuroendocrinol 2012; 24: 609–628. source
Not checked in the free run.
Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.
Study design and conductcitationAlthough our sample size matched the median sample size for oxytocin crossover studies, this still may be considered as small.
“Second, although our sample size matched the median sample size for oxytocin crossover studies,35 this still may be considered as small.”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [35] Alvares GA, Quintana DS, Whitehouse AJ . Beyond the hype and hope: critical considerations for intranasal oxytocin research in autism spectrum disorder. Autism Res 2016; 10: 25–41. source
Not checked in the free run.
The authors state this as an assumption.
Oxytocin travels via olfactory and trigeminal nerves to the brain rather than across the blood–brain barrier via circulating blood.
“Although it is assumed that oxytocin travels via olfactory and trigeminal nerves to the brain rather than across the blood–brain barrier via circulating blood, this has not been directly tested in humans.”
The paper relies on this without support.
Social cognition is a complex suite of processes that cannot be encapsulated by a single experimental task.
“Social cognition is a complex suite of processes that cannot be encapsulated by a single experimental task.”
The paper relies on this without support.
Research has yet to investigate the dose-dependent response to intranasal oxytocin in ASD using optimized intranasal delivery.
“Research has yet to investigate the dose-dependent response to intranasal oxytocin in ASD using optimized intranasal delivery.”
The paper relies on this without support.
The optimal oxytocin dose for humans is unknown.
“Second, the optimal oxytocin dose for humans is unknown.”
The paper relies on this without support.
Peak central concentrations of oxytocin occur around 35–50 min post-administration.
“which is thought to be around 35–50 min post-administration.”
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
Previous studies showing oxytocin effects on emotion recognition, empathy, or face processing in adults with ASD had an average sample size of 21.5 participants.
“Moreover, previous studies showing oxytocin effects on emotion recognition, empathy, or face processing in adults with ASD had an average sample size of 21.5 participants48,50,51,86–88.”
From Randomized clinical trial shows no substantial modulation of empathy-related neural activation by intranasal oxytocin in autism (2021) · cites this paper as [88]
Statistics recomputed
Every reported test result, recomputed from its test statistic and degrees of freedom. A result shows as not adding up only once an independent check has confirmed it.
- Consistentχ²(2) = 6.71reported p = .03 · recomputed p = .035
“χ2(2)=6.71, p = .03”
- ConsistentF(2, 32) = 3.49reported p = .04 · recomputed p = .043
“F(2, 32)=3.49, p = .04”
- Consistentχ²(2) = 4.83reported p = .09 · recomputed p = .089
“χ2(2)=4.83, p = .09”
- Consistentχ²(2) = 1.19reported p = .55 · recomputed p = .552
“χ2(2)=1.19, p = .55”
- Consistentχ²(2) = 0.22reported p = .89 · recomputed p = .896
“χ2(2)=0.22, p = .89”
- Consistentχ²(2) = 3.83reported p = .15 · recomputed p = .147
“χ2(2)=3.83, p = .15”
- Consistentχ²(2) = 1.79reported p = .41 · recomputed p = .409
“χ2(2)=1.79, p = .41”
- Consistentχ²(2) = 0.02reported p = .99 · recomputed p = .990
“χ2(2)=0.02, p = .99”
- Consistentχ²(2) = 0.43reported p = .8 · recomputed p = .807
“χ2(2)=0.43, p = .8”
- Consistentχ²(2) = 0.23reported p = .89 · recomputed p = .891
“χ2(2)=0.23, p = .89”
- Consistentχ²(2) = 5.39reported p = .07 · recomputed p = .068
“χ2(2)=5.39, p = .07”
- Consistentχ²(2) = 2.8reported p = .25 · recomputed p = .247
“χ2(2)=2.8, p = .25”
- Consistentχ²(2) = 0.18reported p = .91 · recomputed p = .914
“χ2(2)=0.18, p = .91”
- Consistentχ²(2) = 2.48reported p = .29 · recomputed p = .289
“χ2(2)=2.48, p = .29”
- Consistentχ²(2) = 0.76reported p = .68 · recomputed p = .684
“χ2(2)=0.76, p = .68”
- Consistentχ²(2) = 5.48reported p = .06 · recomputed p = .065
“χ2(2)=5.48, p = .06”
- Consistentχ²(1) = 0.3reported p = .58 · recomputed p = .584
“χ2(1)=0.3, p = .58”
- Consistentχ²(2) = 5.37reported p = .07 · recomputed p = .068
“χ2(2)=5.37, p = .07”
- Consistentχ²(2) = 0.17reported p = .92 · recomputed p = .919
“χ2(2)=0.17, p = .92”
- Consistentχ²(2) = 13.79reported p = .001 · recomputed p = .001
“χ2(2)=13.79, p = .001”
- Consistentχ²(2) = 2.03reported p = .36 · recomputed p = .362
“χ2(2)=2.03, p = .36”
- Consistentχ²(1) = 1.89reported p = .17 · recomputed p = .169
“χ2(1)=1.89, p = .17”
- Consistentχ²(2) = 4.2reported p = .12 · recomputed p = .122
“χ2(2)=4.2, p = .12”
- Consistentχ²(2) = 0.24reported p = .89 · recomputed p = .887
“χ2(2)=0.24, p = .89”
- Consistentχ²(1) = 1.65reported p = .2 · recomputed p = .199
“χ2(1)=1.65, p = .2”
- Consistentχ²(2) = 0.34reported p = .84 · recomputed p = .844
“χ2(2)=0.34, p = .84”
- Consistentχ²(2) = 0.65reported p = .72 · recomputed p = .723
“χ2(2)=0.65, p = .72”
- Consistentχ²(1) = 17.45reported p < .001 · recomputed p < .001
“χ2(1)=17.45, p < .001”
- Consistentχ²(2) = 0.5reported p = .78 · recomputed p = .779
“χ2(2)=0.5, p = .78”
- Consistentχ²(2) = 2.65reported p = .27 · recomputed p = .266
“χ2(2)=2.65, p = .27”
- Consistentχ²(2) = 1.23reported p = .54 · recomputed p = .541
“χ2(2)=1.23, p = .54”
- Consistentχ²(2) = 2.57reported p = .28 · recomputed p = .277
“χ2 (2)=2.57, p = .28”
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
Self-check results appear here once an independent check has confirmed them.
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- Authors
- Quintana, D. S., Westlye, L. T., Hope, S., Nærland, T., Elvsåshagen, T., Dørum, E., Rustan, Ø., Valstad, M., Rezvaya, L., Lishaugen, H., Stensønes, E., Yaqub, S., Smerud, K. T., Mahmoud, R. A., Djupesland, P. G., & Andreassen, O. A.
- Affiliations
- Oslo University Hospital (NO)
- Smerud Medical Research (Norway) (NO)
- OptiNose (United States) (US)
- OptiNose (Norway) (NO)
- Corresponding author
- Andreassen, O A
- ORCID
- Venue
- Translational Psychiatry
- Published
- 2017-05-23
- Volume
- 7
- Issue
- 5
- Pages
- e1136-e1136
- ISSN
- 2158-3188 (ISSN-L)
- PMC
- PMC5584522
- OpenAlex
- W2618490415
- Semantic Scholar
- 324d0cf4b04a0fb6cfeb1103862e432ecaa6991a
- Cited by
- 111
- References
- 75
- Citations by year
- 2026: 8 · 2025: 10 · 2024: 9 · 2023: 11 · 2022: 13 · 2021: 18 · 2020: 16 · 2019: 10 · 2018: 11 · 2017: 5
- FWCI
- 16.44
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Locations
- Translational Psychiatry (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- NORA - Norwegian Open Research Archives (submittedVersion, cc-by)
- Funders
- Novo Nordisk (NNF16OC0019856)
- Universitetet i Oslo
- Norges Forskningsråd (223273, 219483)
- Novo Nordisk Fonden (NNF16OC0019856)
- Topics
- Social Sciences › Psychology › Social Psychology › Neuroendocrine regulation and behavior
- Life Sciences › Neuroscience › Cognitive Neuroscience › Autism Spectrum Disorder Research
- Life Sciences › Neuroscience › Cognitive Neuroscience › Face Recognition and Perception
- Keywords
- oxytocin, autism spectrum disorder, intranasal drug delivery, dose-response relationship, social cognition, face perception, Reading the Mind in the Eyes Test, autistic adults
- MeSH terms
- Autism Spectrum Disorder, Administration, Intranasal, Adolescent, Adult, Cognition, Emotions, Facial Expression, Humans, Male, Oxytocics, Oxytocin, Social Behavior, Outcome Assessment, Health Care, Cross-Over Studies, Young Adult
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Claims read by deepseek-v4.1-flash under definition version 3 (extract-v3) on 2026-10-09.
Classified by jev-1.13-20260917 (gold-guideline-v0.2) on 2026-10-09.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
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