Sangam: A Confluence of Knowledge Streams

Normal Evoked Response to Rapid Sequences of Tactile Pulses in Autism Spectrum Disorders

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dc.contributor Martinos Imaging Center (McGovern Institute for Brain Research at MIT)
dc.contributor McGovern Institute for Brain Research at MIT
dc.contributor Khan, Sheraz
dc.creator Ganesan, Santosh
dc.creator Khan, Sheraz
dc.creator Garel, Keri-Lee A.
dc.creator Hämäläinen, Matti S.
dc.creator Kenet, Tal
dc.date 2017-02-23T14:44:54Z
dc.date 2017-02-23T14:44:54Z
dc.date 2016-09
dc.date 2015-10
dc.date.accessioned 2023-03-01T18:11:00Z
dc.date.available 2023-03-01T18:11:00Z
dc.identifier 1662-5161
dc.identifier http://hdl.handle.net/1721.1/107112
dc.identifier Ganesan, Santosh et al. “Normal Evoked Response to Rapid Sequences of Tactile Pulses in Autism Spectrum Disorders.” Frontiers in Human Neuroscience 10 (2016): n. pag.
dc.identifier https://orcid.org/0000-0003-1967-7436
dc.identifier.uri http://localhost:8080/xmlui/handle/CUHPOERS/279064
dc.description Autism spectrum disorder (ASD) is a developmental disorder diagnosed behaviorally, with many documented neurophysiological abnormalities in cortical response properties. While abnormal sensory processing is not considered core to the disorder, most ASD individuals report sensory processing abnormalities. Yet, the neurophysiological correlates of these abnormalities have not been fully mapped. In the auditory domain, studies have shown that cortical responses in the early auditory cortex in ASD are abnormal in multiple ways. In particular, it has been shown that individuals with ASD have abnormal cortical auditory evoked responses to rapid, but not slow, sequences of tones. In parallel, there is substantial evidence of somatosensory processing abnormalities in ASD, including in the temporal domain. Here, we tested the somatosensory domain in ASD for abnormalities in rapid processing of tactile pulses, to determine whether abnormalities there parallel those observed in the auditory domain. Specifically, we tested the somatosensory cortex response to a sequence of two tactile pulses with different (short and long) temporal separation. We analyzed the responses in cortical space, in primary somatosensory cortex. As expected, we found no group difference in the evoked response to pulses with long (700 ms) temporal separation. Contrary to findings in the auditory domain, we also found no group differences in the evoked responses to the sequence with a short (200 ms) temporal separation. These results suggest that rapid temporal processing deficits in ASD are not generalized across multiple sensory domains, and are unlikely to underlie the behavioral somatosensory abnormalities observed in ASD.
dc.description Nancy Lurie Marks Family Foundation
dc.format application/pdf
dc.language en_US
dc.publisher Frontiers Research Foundation
dc.relation http://dx.doi.org/10.3389/fnhum.2016.00433
dc.relation Frontiers in Human Neuroscience
dc.rights Creative Commons Attribution 4.0 International License
dc.rights http://creativecommons.org/licenses/by/4.0/
dc.source Frontiers
dc.title Normal Evoked Response to Rapid Sequences of Tactile Pulses in Autism Spectrum Disorders
dc.type Article
dc.type http://purl.org/eprint/type/JournalArticle


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