Impaired detection and differentiation of briefly presented facial emotions in adults with high-functioning autism and asperger syndrome

Behaviour Research and Therapy
R FrankS Roepke

Abstract

Although deficits in the recognition of emotional facial expressions are considered a hallmark of autism spectrum disorder (ASD), characterization of abnormalities in the differentiation of emotional expressions (e.g., sad vs. angry) has been rather inconsistent, especially in adults without intellectual impairments who may compensate for their deficits. In addition, previous research neglected the ability to detect emotional expressions (e.g., angry vs. neutral). The present study used a backward masking paradigm to investigate, a) the detection of emotional expressions, and b) the differentiation of emotional expressions in adults diagnosed with high functioning autism or Asperger syndrome (n = 23) compared to neurotypical controls (n = 25). Compensatory strategies were prevented by shortening the stimulus presentation time (33, 67, and 100 ms). In general, participants with ASD were significantly less accurate in detecting and differentiating emotional expressions compared to the control group. In the emotion differentiation task, individuals with ASD profited significantly less from an increase in presentation time. These results reinforce theoretical models that individuals with ASD have deficits in emotion recognition und...Continue Reading

Citations

Aug 31, 2019·Journal of Autism and Developmental Disorders·Stephanie Van der DonckBart Boets

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