Journal
JOURNAL OF AUTISM AND DEVELOPMENTAL DISORDERS
Volume 48, Issue 6, Pages 2187-2202Publisher
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10803-018-3491-3
Keywords
Fragile X; Autism spectrum disorders; Polyvagal theory; Autonomic nervous system; Psychometrics; Sensory processing
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Funding
- North Carolina Translational & Clinical Sciences Institute [550KR111516]
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Individuals with fragile X syndrome (FXS), especially those co-diagnosed with autism spectrum disorder (ASD), face many sensory processing challenges. However, sensory processing measures informed by neurophysiology are lacking. This paper describes the development and psychometric properties of a parent/caregiver report, the Brain-Body Center Sensory Scales (BBCSS), based on Polyvagal Theory. Parents/guardians reported on 333 individuals with FXS, 41% with ASD features. Factor structure using a split-sample exploratory-confirmatory design conformed to neurophysiological predictions. Internal consistency, test-retest, and inter-rater reliability were good to excellent. BBCSS subscales converged with the Sensory Profile and Sensory Experiences Questionnaire. However, data also suggest that BBCSS subscales reflect unique features related to sensory processing. Individuals with FXS and ASD features displayed more sensory challenges on most subscales.
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