Sensory questionnaire studies in ASC mainly record parental reports of their child’s sensory experience. Questionnaires are widely used to study sensory reactivity issues in children with and without ASC, in Sensory Processing Disorder and other conditions. The study of atypical sensory reactivity in individuals with autism is important given how common this is in ASC. Under Symptom B the new autism criteria for DSM-5 include ‘Hyper- or hyporeactivity to sensory input or unusual interests in sensory aspects of the environment (for example, apparent indifference to pain/temperature, adverse response to specific sounds or textures, excessive smelling or touching of objects, visual fascination with lights or movement.’. In addition to the classic diagnostic criteria (social and communication difficulties alongside unusually narrow interests and repetitive behaviour) atypical sensory reactivity is now also recognized as being at the core of autism spectrum conditions (ASC). The SPQ provides a new tool to measure individual differences on this dimension. Finally, greater sensory sensitivity is associated with more autistic traits. Adults with ASC report more sensitivity to sensory stimuli on the SPQ. The SPQ shows good internal consistency and concurrent validity and differentiates between adults with and without ASC. The SPQ was significantly correlated with the SensOR across groups (r = -.46) and within the ASC (r = -.49) and control group (r = -.21). 92) and the reduced 35-item version (alpha =. The SPQ showed high internal consistency for both the total SPQ (Cronbach’s alpha =. Principal component analyses conducted separately in both groups indicated that one factor comprising 35 items consistently assesses sensory hypersensitivity. 38) and within the ASC (r = -.18) and control groups (r = -.15). SPQ scores were correlated with AQ scores both across groups (r =. ResultsĪdults with ASC reported more sensory hypersensitivity on the SPQ compared to controls ( P <. MethodsĪ total of 359 adults with (n = 196) and without (n = 163) ASC were asked to fill in the SPQ, the Sensory Over-Responsivity Inventory (SensOR) and the Autism-Spectrum Quotient (AQ) online. We aimed to develop and validate the Sensory Perception Quotient (SPQ), which assesses basic sensory hyper- and hyposensitivity across all five modalities. Given the DSM-5 criteria for ASC now include sensory reactivity, there is a need for an adult questionnaire investigating basic sensory functioning. Sensory questionnaire-based studies in ASC mainly record parental reports of their child’s sensory experience less is known about sensory reactivity in adults with ASC. Questionnaire-based studies suggest atypical sensory perception in over 90% of individuals with autism spectrum conditions (ASC).
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