Social and nonsocial visual prediction errors in autism spectrum disorder.
Autistic adolescents glue their eyes to unexpected visual spots, and the longer they stare, the more autism traits they show.
01Research in Context
What this study did
Greene et al. (2019) watched where adolescents with autism looked when pictures broke their expectations. They used simple scenes on a screen. Sometimes the scene changed in an odd way. The team tracked eye movements during these surprise moments.
They compared teens with autism to typically developing peers. All kids saw the same violation events. The goal was to see if autistic gaze patterns differed when predictions failed.
What they found
Autistic adolescents stared longer at the unexpected spot than neurotypical teens. The more they stared, the higher their autism symptom scores. This extra looking happened only during violation trials, not regular ones.
The finding suggests autistic brains may register prediction errors more strongly or longer. It is not a visual acuity boost; it is a difference in how surprise is processed.
How this fits with other research
Hochhauser et al. (2018) seems to disagree. They also tested autistic adolescents with eye-tracking and reported faster change detection. The two studies used different tasks: one hunted for any picture change, the other watched reactions to impossible events. The clash shows that 'better visual detection' is not universal; it depends on what the teen is asked to do.
Austin et al. (2015) looked at autistic adults watching odd hand movements. Adults looked less at key action spots, but when they did look, their timing was normal. Together with K et al., a pattern emerges: autistic people may miss social cues early, yet once engaged, they linger on unexpected details longer.
Hou et al. (2024) extended the idea to younger kids. Preschoolers with autism showed jumpier, less predictable gaze. Their variability predicted poorer action guessing. The adolescent data from K et al. fit this line: atypical prediction signals start early and remain into the teen years.
Why it matters
When you show new materials, expect autistic learners to lock onto surprising pieces longer. Use that moment to label what changed and why. Keep instructions clear so the 'surprise stare' does not block the next learning step. If a teen keeps looking away, check whether something in the room just violated his visual prediction and gently redirect back to task-relevant cues.
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02At a glance
03Original abstract
Impaired predictive coding has been proposed as a framework to explain discrepancies between expectations and outcomes in autism spectrum disorder (ASD) that may contribute to core symptoms of the disorder. However, no eye tracking study has directly addressed this framework in the context of visual predictions of social and nonsocial stimuli. The current study used eye tracking to examine violations of learned visual associations of both social and nonsocial stimuli. Twenty-six adolescents with ASD and 18 typically developing control (TDC) adolescents completed an outcome expectation eye tracking task in which predictive cues correctly (80% of trials) or incorrectly (20% of trials) indicated the location (left or right) of forthcoming social or nonsocial stimuli. During violation trials, individuals with ASD focused their gaze relatively more often on stimuli presented on locations that violated the learned association and less often on locations that corresponded with the learned association. This finding was not moderated by stimulus type (i.e., social vs. nonsocial). Additionally, participants who looked at incorrectly predicted locations more often had significantly greater ASD symptom severity. These results are consistent with theories that characterize ASD as a disorder of prediction and have potential implications for understanding symptoms related to prediction errors in individuals with ASD. Autism Res 2019, 12: 878-883. © 2019 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: Individuals with autism spectrum disorder (ASD) exhibit impairments making predictions that may impact learning. In this study, we used eye tracking methodology and found that individuals with ASD were less likely to look at the predicted location when a visual routine was violated. This pattern was evident for both social and nonsocial images and was associated with greater ASD symptom severity. These findings provide additional support for predictive challenges in ASD.
Autism research : official journal of the International Society for Autism Research, 2019 · doi:10.1002/aur.2090