Evidence map›Paper›PMID 26069955›Full record

ArticlePloS one2015

Testing the 'Extreme Female Brain' Theory of Psychosis in Adults with Autism Spectrum Disorder with or without Co-Morbid Psychosis.

Felicity V Larson, Meng-Chuan Lai, Adam P Wagner, MRC AIMS Consortium, Simon Baron-Cohen, Anthony J Holland

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.0field-weighted citation impact, top 26% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

10 citing papers in PubMed, 20 citations in OpenAlex.

  1. Paranoia and Data-Gathering Biases in Autism.Journal of autism and developmental disorders · 2025
    Article
  2. Article
  3. Article
  4. Article
  5. Empathy in Autism Spectrum Disorder.Journal of autism and developmental disorders · 2019
    Article
  6. Article
  7. Article
  8. Beyond sex differences: new approaches for thinking about variation in brain structure and function.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2016
    Review
  9. Article
  10. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 2 countries.

Felicity V LarsonCambridge Intellectual and Development Disabilities Research Group, Department of Psychiatry, University of Cambridge, Cambridge, United Kingdom.
Meng-Chuan LaiAutism Research Centre, Department of Psychiatry, University of Cambridge, Cambridge, United Kingdom; Department of Psychiatry, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan.
Adam P WagnerCambridge Intellectual and Development Disabilities Research Group, Department of Psychiatry, University of Cambridge, Cambridge, United Kingdom; NIHR CLAHRC East of England, Cambridge, United Kingdom.
MRC AIMS Consortium
Simon Baron-CohenAutism Research Centre, Department of Psychiatry, University of Cambridge, Cambridge, United Kingdom; NIHR CLAHRC East of England, Cambridge, United Kingdom; Cambridgeshire and Peterborough NHS Foundation Trust, Cambridge, United Kingdom.
Anthony J HollandCambridge Intellectual and Development Disabilities Research Group, Department of Psychiatry, University of Cambridge, Cambridge, United Kingdom; NIHR CLAHRC East of England, Cambridge, United Kingdom; Cambridgeshire and Peterborough NHS Foundation Trust, Cambridge, United Kingdom.
University of Cambridge · GBCambridgeshire and Peterborough NHS Foundation Trust · GB

Funding

Department of Health RP-PG-0606-1045Medical Research Council G0400061Medical Research Council G0600977
6 · The paper itself

Abstract

introductionMales and females in the general population differ, on average, in their drive for empathizing (higher in females) and systemizing (higher in males). People with autism spectrum disorder (ASD) show a drive for systemizing over empathizing, irrespective of sex, which led to the conceptualisation of ASD as an 'extreme of the typical male brain'. The opposite cognitive profile, an 'extreme of the typical female brain', has been proposed to be linked to conditions such as psychosis and mania/hypomania.

methodsWe compared an empathizing-over-systemizing bias (for short 'empathizing bias') in individuals with ASD, who had experienced psychotic illness (N = 64) and who had not (N = 71).

resultsThere were overall differences in the distribution of cognitive style. Adults with ASD who had experienced psychosis were more likely to show an empathizing bias than adults with ASD who had no history of psychosis. This was modulated by IQ, and the group-difference was driven mainly by individuals with above-average IQ. In women with ASD and psychosis, the link between mania/hypomania and an empathizing bias was greater than in men with ASD.

conclusionsThe bias for empathizing over systemizing may be linked to the presence of psychosis in people with ASD. Further research is needed in a variety of clinical populations, to understand the role an empathizing bias may play in the development and manifestation of mental illness.

Indexed as

AdolescentAdultAutism Spectrum DisorderBrainComorbidityEmpathyFemaleHumansMalePersonalityPsychotic DisordersYoung Adult

Identifiers

PMID26069955
PMCPMC4466563
OpenAlexW1851684026

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.