Cited by 40Neuroendocrine regulation and behaviorAutism Spectrum Disorder ResearchHuman-Animal Interaction Studies

The effect of intranasal oxytocin versus placebo treatment on the autonomic responses to human sounds in autism: a single-blind, randomized, placebo-controlled, crossover design study

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Lin, I-Fan, Kashino, Makio, Ohta, Haruhisa, Yamada, Takashi, Tani, Masayuki, Watanabe, Hiromi, Kanai, Chieko, Ohno, Taisei +3 more·2014·Molecular Autism

Abstract

BACKGROUND: Many individuals with autism spectrum disorders (ASD) have difficulty with verbal communication, which might be due to a lack of spontaneous orientation toward social auditory stimuli. Previous studies have shown that a single dose of oxytocin improves speech comprehension in autism. The primary aim of this study was to investigate whether the orientation behaviors toward human sounds are different for neurotypical (NT) adults and adults with ASD and whether oxytocin has an effect on their orientation behaviors toward human sounds. METHODS: This was a randomized, placebo-controlled, within-subject, crossover design study of intranasal oxytocin versus placebo in 13 NT adults and 16 adults with ASD. Subjects were randomized to 24 IU intranasal oxytocin or placebo on different days, and they were blind to the treatment. The participants then listened passively to human and non-human affective sounds while their skin conductance responses (SCRs) and the changes in peripheral blood vessel constriction were monitored as an indicator of spontaneous orientation. The monitored data were analyzed by a mixed-design ANOVA. RESULTS: Oxytocin enhanced the difference between the SCRs to human and non-human sounds in both the NT and ASD groups (F(1,56) = 6.046, p = 0.017). Further correlation coefficient analysis showed significant correlations between this SCR difference and the scores in the autism spectrum quotient 'attention to detail' and 'social skill' subscales and interpersonal reactivity index and social functioning scale in the ASD group. Oxytocin was well tolerated, and no serious adverse effects were reported. CONCLUSIONS: The difference in SCRs implies that oxytocin nasal spray may enhance orientation behaviors toward human sounds in the presence of other environmental sounds in both ASD and NT adults. TRIAL REGISTRATION: UMIN-CTR Clinical Trial, Unique trial number: UMIN000005809.

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  1. Bradley MM Lang PJ The international affective digitized sounds (2nd Edition; IADS-2): affective ratings of sounds and instruction manual Technical report B-3 2007 Gainesville, FL: University of Florida

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Authors
Lin, I.-F., Kashino, M., Ohta, H., Yamada, T., Tani, M., Watanabe, H., Kanai, C., Ohno, T., Takayama, Y., Iwanami, A., & Kato, N.
Affiliations
  • NTT (Japan) (JP)
  • SHOWA Medical University (JP)
Corresponding author
Lin, I-Fan
Venue
Molecular Autism
Published
2014
Volume
5
Issue
1
Pages
20
ISSN
2040-2392 (ISSN-L)
OpenAlex
W2109676873
Cited by
40
References
49
Citations by year
2026: 1 · 2024: 4 · 2023: 3 · 2022: 5 · 2021: 4 · 2020: 2 · 2019: 4 · 2018: 3 · 2017: 4 · 2016: 2 · 2015: 5 · 2014: 3
FWCI
6.92
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Molecular Autism (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Taipei Medical University Repository (submittedVersion)
Funders
Japan Science and Technology Agency
Topics
  • Social Sciences › Psychology › Social Psychology › Neuroendocrine regulation and behavior
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Autism Spectrum Disorder Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Human-Animal Interaction Studies
Keywords
intranasal oxytocin, autism spectrum disorder, skin conductance response, affective sounds, social communication, interpersonal reactivity, social functioning, placebo-controlled crossover trial

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