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Individuals With Agenesis of the Corpus Callosum Show Sensory Processing Differences as Measured by the Sensory Profile
Published Web Location
https://doi.org/10.1037/neu0000165Abstract
Objective
Given reports of high pain thresholds and reduced auditory response in individuals with agenesis of the corpus callosum (AgCC), this study investigated whether affected participants report atypical experiences and behaviors on a well-established sensory processing measure.Methods
Fourteen participants with AgCC (ages 11-59) completed the Adolescent/Adult Sensory Profile (Brown & Dunn, 2001). Sensory profile scales were classified as "Atypical" if they were more than 1 standard deviation from the mean.Results
Fifty-seven percent of participants with AgCC reported reduced sensory registration as compared to an expected 16% of the normative sample. Similarly, 50% of the AgCC participants reported atypically increased auditory processing difficulties.Conclusions
Using a well-established sensory processing questionnaire, participants with AgCC reported measurable differences in multiple aspects of sensory processing. The most notable difference was in the quadrant of low sensory registration, suggesting that individuals with AgCC may require sensory information to be presented more slowly or at a higher intensity for adequate processing. The sensory modality that was most affected was the auditory system, which is consistent with increased rates of language disorders and autism spectrum disorders in this population. Understanding sensory processing in individuals with AgCC can both elucidate the role of interhemispheric transfer in the development of intact sensory processing as well as contribute to our knowledge of the role of the corpus callosum in a range of disorders in which sensory processes are impacted. (PsycINFO Database RecordMany UC-authored scholarly publications are freely available on this site because of the UC's open access policies. Let us know how this access is important for you.
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