Sensory Experiences Questionnaire: discriminating sensory features in young children with autism, developmental delays, and typical development

This study describes a new caregiver-report assessment, the Sensory Experiences Questionnaire (SEQ), and explicates the nature of sensory patterns of hyper- and hyporesponsiveness, their prevalence, and developmental correlates in autism relative to comparison groups. METHOD: Caregivers of 258 children in five diagnostic groups (Autism, PDD, DD/MR, Other DD, Typical) ages 5-80 months completed the SEQ.

The SEQ's internal consistency was alpha' = .80. Prevalence of overall sensory symptoms for the Autism group was 69%. Sensory symptoms were inversely related to mental age. The Autism group had significantly higher symptoms than either the Typical or DD groups and presented with a unique pattern of response to sensory stimuli -hyporesponsiveness in both social and nonsocial contexts. A pattern of hyperresponsiveness was similar in the Autism and DD groups, but significantly greater in both clinical groups than in the Typical group.