Intact hedonic responses to sweet tastes in autism spectrum disorder |
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| Affiliation: | 1. Institute of Clinical Physiology, National Research Council of Italy (CNR), Pisa, Italy;2. IRCCS Fondazione Stella Maris, Pisa, Italy;3. Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy;1. Department of Psychology, Queens College, City University of New York, New York, NY, USA;2. Department of Psychology, Brooklyn College, City University of New York, New York, NY, USA;3. Behavioral and Cognitive Neuroscience Cluster of the Psychology Doctoral Program, The Graduate Center, City University of New York, New York, NY, USA |
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| Abstract: | The Sweet Taste Test (STT) is a standardized measure designed to index the ability to detect differences in sweet tastes (sweet taste sensitivity) and hedonic responses to sweet tastes (sweet taste liking). Profiles of response on the STT suggest enhanced hedonic responses to sweet tastes in psychiatric disorders characterized by dysfunctional reward processing systems, including binge-eating disorders and substance use disorders, and a putative mechanism governing STT responses is the brain opioid system. The present study examined STT responses in 20 adults with autism spectrum disorder (ASD) and 38 healthy control adults. There were no differences in sweet taste sensitivity or hedonic response to sweet tastes between the ASD and control groups. Within the ASD sample, ASD symptom severity was associated with sweet taste sensitivity, but not hedonic response to sweet taste. Results may ultimately shed light on brain opioid system functioning in ASD. |
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| Keywords: | Autism spectrum disorder (ASD) Reward processing Sweet taste Opioid system Primary rewards |
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