Journal of Autism and Developmental Disorders

, Volume 44, Issue 3, pp 513–520 | Cite as

Adolescents with Autism Spectrum Disorder Show a Circumspect Reasoning Bias Rather than ‘Jumping-to-Conclusions’

  • Mark BrosnanEmail author
  • Emma Chapman
  • Chris Ashwin
Original Paper


People with autism spectrum disorders (ASD) often take longer to make decisions. The Autism-Psychosis Model proposes that people with autism and psychosis show the opposite pattern of results on cognitive tasks. As those with psychosis show a jump-to-conclusions reasoning bias, those with ASD should show a circumspect reasoning bias. Jumping-to-conclusions was assessed in a sample of 20 adolescents with ASD and 23 age-matched controls using the jumping-to-conclusions beads task. Both groups demonstrated equivalent levels of confidence in decision-making, however the ASD group required more beads than controls before making their decision. Furthermore, there was a positive correlation between the beads required and degree of autism symptoms. Consistent with the Autism-Psychosis Model, a more circumspect reasoning bias was evident in ASD.


Autism Jumping-to-conclusions Reasoning bias Decision-making 



Grant sponsor EPSRC; Grant number EP/G031975/1.


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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  1. 1.Department of PsychologyUniversity of BathBathUK

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