Cited by 63Attention Deficit Hyperactivity DisorderNeural and Behavioral Psychology StudiesAutism Spectrum Disorder Research

Inverse fluoxetine effects on inhibitory brain activation in non-comorbid boys with ADHD and with ASD

Open access
Chantiluke, Kaylita, Barrett, Nadia, Giampietro, Vincent, Santosh, Paramala, Brammer, Michael, Simmons, Andrew, Murphy, Declan G., Rubia, Katya·2015·Psychopharmacology

Abstract

RATIONALE: Attention deficit hyperactivity disorder (ADHD) and autism spectrum disorder (ASD) are often comorbid and have both performance and brain dysfunctions during motor response inhibition. Serotonin agonists modulate motor response inhibition and have shown positive behavioural effects in both disorders. AIMS: We therefore used functional magnetic resonance imaging (fMRI) to investigate the so far unknown shared and disorder-specific inhibitory brain dysfunctions in these two disorders, as well as the effects of a single dose of the selective serotonin reuptake inhibitor fluoxetine. METHODS: Age-matched boys with ADHD (18), ASD (19) and healthy controls (25) were compared with fMRI during a stop task measuring motor inhibition. Patients were scanned twice, under either an acute dose of fluoxetine or placebo in a double-blind, placebo-controlled randomised design. Repeated measures analyses within patients assessed drug effects. To test for potential normalisation effects of brain dysfunctions, patients under each drug condition were compared to controls. RESULTS: Under placebo, relative to controls, ASD boys showed overactivation in left and right inferior frontal cortex (IFC), while ADHD boys showed disorder-specific underactivation in orbitofrontal cortex (OFC) and basal ganglia. Under fluoxetine, the prefrontal dysfunctions were no longer observed, due to inverse effects of fluoxetine on these activations: fluoxetine downregulated IFC and OFC activation in ASD but upregulated them in ADHD. CONCLUSIONS: The findings show that fluoxetine normalises frontal lobe dysfunctions in both disorders via inverse effects, downregulating abnormally increased frontal activation in ASD and upregulating abnormally decreased frontal activation in ADHD, potentially reflecting inverse baseline serotonin levels in both disorders.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1007/s00213-014-3837-2

Cites

80 of 80 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

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?

  • IFC underactivation was found to be disorder-specific in individual fMRI studies compared to ASD.

    “IFC underactivation was also found to be disorder-specific in individual fMRI studies compared to ASD (Chantiluke et al., 2015)”

    From Cognitive Neuroscience of Attention Deficit Hyperactivity Disorder (ADHD) and Its Clinical Translation (2018) · cites this paper as Chantiluke et al., 2015

    The Discussion says ADHD boys had lower IFC activation relative to ASD boys, but explicitly says they had no IFC underactivation relative to controls. The Results likewise show significantly higher left IFC activation in ASD than ADHD, while the right IFC difference was only a trend. The paper therefore supports the ADHD–ASD comparison, but characterizes the disorder-specific IFC finding as ASD overactivation rather than ADHD underactivation relative to controls. (LLM, conf=0.85)

    Experimental — accuracy not yet measured

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Research works printed but not linked: 1

  1. Pauls AM O’Daly OG Rubia K Riedel WJ Williams SC Mehta MA Methylphenidate effects on prefrontal functioning during attentional-capture and response inhibition Biol Psychiatry 2012 72 142 149 10.1016/j.biopsych.2012.03.028 22552046 · DOI · Paper page

Cited by

Sorted by citations

Authors
Chantiluke, K., Barrett, N., Giampietro, V., Santosh, P., Brammer, M., Simmons, A., Murphy, D. G., & Rubia, K.
Affiliations
  • King's College London (GB)
  • South London and Maudsley NHS Foundation Trust (GB)
Corresponding author
Rubia, Katya
Venue
Psychopharmacology
Published
2014-12-24
Volume
232
Issue
12
Pages
2071-2082
ISSN
  • 0033-3158 (ISSN-L)
  • 1432-2072
OpenAlex
W2093733834
Cited by
63
References
80
Citations by year
2026: 3 · 2025: 6 · 2024: 7 · 2023: 5 · 2022: 1 · 2021: 8 · 2020: 6 · 2019: 5 · 2018: 5 · 2017: 7 · 2016: 4 · 2015: 5 · 2014: 1
FWCI
4.33
Type
journal article
Language
en
Open access
Locations
  • Psychopharmacology (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Research Portal (King's College London) (submittedVersion, other-oa)
Funders
  • Eli Lilly and Company
  • South London and Maudsley NHS Foundation Trust
  • European Federation of Pharmaceutical Industries and Associations
  • National Institute for Health and Care Research (RP-PG-0606-1045)
  • King's College London (115300)
  • European Commission (115300, FP7/2007)
  • Innovative Medicines Initiative (115300)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Attention Deficit Hyperactivity Disorder
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Autism Spectrum Disorder Research
Keywords
fluoxetine, attention deficit hyperactivity disorder, autism spectrum disorder, motor inhibition, stop-signal task, serotonin, selective serotonin reuptake inhibitors, inferior frontal cortex, orbitofrontal cortex, basal ganglia, boys, comorbidities
MeSH terms
Autism Spectrum Disorder, Adolescent, Attention Deficit Disorder with Hyperactivity, Basal Ganglia, Child, Double-Blind Method, Fluoxetine, Frontal Lobe, Humans, Inhibition, Psychological, Intelligence, Magnetic Resonance Imaging, Male, Movement, Psychomotor Performance, Prefrontal Cortex, Antidepressive Agents, Second-Generation

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.

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 ›

Are you an author, or do you see a problem with this page? Request a review