Can They See It? The Functional Field of View Is Narrower in Individuals with Autism Spectrum Disorder

PLoS One. 2015 Jul 23;10(7):e0133237. doi: 10.1371/journal.pone.0133237. eCollection 2015.

Abstract

Although social cognitive deficits have long been thought to underlie the characteristic and pervasive difficulties with social interaction observed in individuals with autism spectrum disorder (ASD), several recent behavioral and neuroimaging studies have indicated that visual perceptual impairments might also play a role. People with ASD show a robust bias towards detailed information at the expense of global information, although the mechanisms that underlie this phenomenon remain elusive. To address this issue, we investigated the functional field of view in a group of high-functioning children with autism (n = 13) and a paired non-ASD group (n = 13). Our results indicate that the ability to correctly detect and identify stimuli sharply decreases with greater eccentricity from the fovea in people with ASD. Accordingly, a probe analysis revealed that the functional field of view in the ASD group was only about 6.62° of retinal eccentricity, compared with 8.57° in typically developing children. Thus, children with ASD appear to have a narrower functional field of view. These results challenge the conventional hypothesis that the deficit in global processing in individuals with ASD is solely due to weak central coherence. Alternatively, our data suggest that a narrower functional field of view may also contribute to this bias.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Asperger Syndrome / physiopathology*
  • Asperger Syndrome / psychology
  • Autism Spectrum Disorder / physiopathology*
  • Autism Spectrum Disorder / psychology
  • Child
  • Eye Movements
  • Female
  • Fixation, Ocular
  • Fovea Centralis
  • Humans
  • Male
  • Neuropsychological Tests
  • Photic Stimulation
  • Pilot Projects
  • Visual Fields*
  • Visual Perception / physiology*

Grants and funding

This work was supported by the National Natural Foundation of China (31300839), Grant-in-Aid for JSPS Postdoctoral Fellowship for Foreign Researchers (P13311), Shanghai Pujiang Program (12PJC034), MOE (Ministry of Education in China) Project of Humanities and Social Sciences (13YJC190020) and SRF for ROCS, SEM. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.