![]() ![]() While older children and adults with ASD comprise the preponderance of research in this area, eye-tracking may be especially useful for studying young children with the disorder as it offers a non-invasive tool for assessing and quantifying early-emerging developmental abnormalities 2,12-13. Eye-tracking has largely been used in these studies to reveal mechanisms underlying impaired task performance 8 and abnormal brain functioning 9, particularly during the processing of social information 1,10-11. ![]() In particular, investigators of autism spectrum disorders (ASD) have benefited from integrating eye-tracking into their research paradigms 4-7. By providing a direct, detailed and objective measure of gaze behavior, eye-tracking has become a valuable tool for examining abnormal perceptual strategies in clinical populations and has been used to identify disorder-specific characteristics 1, promote early identification 2, and inform treatment 3. The rise of accessible commercial eye-tracking systems has fueled a rapid increase in their use in psychological and psychiatric research.
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