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West Ashley Library
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Wando Mount Pleasant Library
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Village Library
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St. Paul's/Hollywood Library
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Associations between physiological and neural measures of sensory reactivity in youth with autism.
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- Author(s): Jung, Jiwon; Zbozinek, Tomislav D.; Cummings, Kaitlin K.; Wilhelm, Frank H.; Dapretto, Mirella; Craske, Michelle G.; Bookheimer, Susan Y.; Green, Shulamite A.
- Source:
Journal of Child Psychology. Oct2021, Vol. 62 Issue 10, p1183-1194. 12p. 4 Color Photographs, 1 Chart. - Source:
- Additional Information
- Subject Terms:
- Abstract: Background: Individuals with Autism Spectrum Disorder (ASD) commonly show sensory over‐responsivity (SOR), an impairing condition related to over‐reactive brain and behavioral responses to aversive stimuli. While individuals with ASD often show atypically high physiological arousal, it is unclear how this relates to sensory reactivity. We therefore investigated how physiological arousal relates to brain and behavioral indices of SOR, to inform understanding of the biological mechanisms underlying SOR and to determine whether physiological measures are associated with SOR‐related brain responses. Methods: Youth aged 8–18 (49 ASD; 30 age‐ and performance‐IQ‐matched typically developing (TD)) experienced mildly aversive tactile and auditory stimuli first during functional magnetic resonance imaging (N = 41 ASD, 26 TD) and then during skin conductance (SCR) (N = 48 ASD, 28 TD) and heart rate (HR) measurements (N = 48 ASD, 30 TD). Parents reported on their children's SOR severity. Results: Autism Spectrum Disorder youth overall displayed greater SCR to aversive sensory stimulation than TD youth and greater baseline HR. Within ASD, higher SOR was associated with higher mean HR across all stimuli after controlling for baseline HR. Furthermore, the ASD group overall, and the ASD‐high‐SOR group in particular, showed reduced HR deceleration/greater acceleration to sensory stimulation compared to the TD group. Both SCR and HR were associated with brain responses to sensory stimulation in regions previously associated with SOR and sensory regulation. Conclusions: Autism Spectrum Disorder youth displayed heightened physiological arousal to mildly aversive sensory stimulation, with HR responses in particular showing associations with brain and behavioral measures of SOR. These results have implications for using psychophysiological measures to assess SOR, particularly in individuals with ASD who cannot undergo MRI. [ABSTRACT FROM AUTHOR]
- Abstract: Copyright of Journal of Child Psychology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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