SchaferAutismReport: UCSD Study Reveals Visual Pattern Preference May Indicate Autism

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RESEARCH

UCSD Study Reveals Visual Pattern Preference May Indicate Autism

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Pattern

unrelated to study.

Using eye-tracking methods, researchers at the University of California, San

Diego School of Medicine have shown that toddlers with autism spend

significantly more time visually examining dynamic geometric patterns than

they do looking at social images - a viewing pattern not found in either

typical or developmentally delayed toddlers. The results of the study suggest

that a preference for geometric patterns early in life may be a signature

behavior in infants who are at-risk for autism. This preference was found in

infants at-risk for autism as young as 14 months of age.

" In testing 110 toddlers ages 14 to 42

months, we found that all of the toddlers who spent more than 69 percent of

their time fixing their gaze on geometric images could be accurately

classified as having an autism spectrum disorder or ASD, " said

Pierce, PhD, an assistant professor in the UCSD Department of Neurosciences

and assistant director of the UCSD Autism Center of Excellence. The study

will be published in the September 6 issue of the Archives of General

Psychiatry.

Out of 51 typical infants in this study, only

one preferred to look at the geometric images. However, not all autistic

toddlers preferred the geometric shapes. In the UCSD study, 40 percent of the

ASD toddlers had this preference, compared to just two percent of the typical

and nine percent of the developmentally delayed toddlers. Thus, while 40

percent of the ASD toddlers were " geometric responders, " the

remaining 60 percent were similar to the typical and developmentally delayed

groups in preferring dynamic social images.

" What an infant prefers to look at when

given a choice between two images may turn out to be a more clearly

observable indicator of autism risk than how he or she looks at a single

image, " Pierce said. " Among toddlers who strongly prefer

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RESEARCH

UCSD Study Reveals Visual Pattern Preference May Indicate Autism

Genetic Tests For Autism, Blindness And Learning Disabilities In Clinics

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