Large Study Finds No Difference in Social Decision-Making Between Autistic and Non-Autistic Individuals
A preprint study involving over 1,600 participants found no significant relationship between autistic traits and two key aspects of social decision-making: self-bias and social basis function use. The research used Bayesian analyses across four experiments and found strong statistical support for the null result. The findings challenge a longstanding assumption that autistic individuals inherently struggle with integrating self and other information during social decisions.
Researchers conducted four highly powered experiments with a combined sample of 1,621 participants to examine whether autistic traits influence how people integrate information about themselves and others during social decision-making. The study focused on two specific mechanisms: self-bias, which refers to how much individuals prioritize self-relevant information, and social basis function use, which describes how people apply compressed patterns of social interaction to guide decisions. Using Bayesian statistical analyses, the team found strong evidence for the absence of any meaningful relationship between autistic traits and either measure, with Bayes factors of 32.13 and 7.04 respectively — both indicating robust support for the null hypothesis. The results held even after controlling for potential confounding variables. The authors argue these findings complicate traditional narratives about social cognition in autism, which have often attributed social difficulties to impaired perspective-taking or self-other integration. They also emphasize that large sample sizes are essential for reliably detecting or ruling out such effects. The study is currently a preprint on bioRxiv and has not yet undergone formal peer review.
What's missing
As a preprint, this study has not yet undergone peer review, which is a significant caveat. The study measured autistic traits dimensionally in a general population sample rather than examining clinically diagnosed autistic individuals, which limits direct generalizability to autistic people as a group. The specific social decision-making tasks used may not capture the full range of real-world social interaction difficulties reported by autistic individuals. Additionally, the study does not address whether other aspects of social cognition — beyond self-bias and social basis function use — might differ across autistic traits.
What different sources said
- bioRxivCenter
Preserved self-other integration during social decision making among individuals with elevated autistic traits
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