Sensory Integration Disorder

Sensory integration disorder (SID)—also known as sensory processing disorder (SPD)—refers to a dysfunctional way of processing sensory input from the environment. Although a well-organized body system integrates sensory input from multiple different sources (our five senses [visual, auditory, touch, olfactory, and taste], the vestibular system [movement], and proprioception [body awareness]), SID occurs when sensory neurons do not signal or function properly or efficiently. This can cause problems in development, learning, and emotion regulation. This entry describes the pioneering research of Anna Jean Ayres on SID, the features and types of SID, and diagnosis, prevalence, and treatment of SID.

Early Research

Much of the work on SID is rooted in the pioneering research of Anna Jean Ayres (1920–1988), a prominent researcher in and professor of occupational therapy. Ayres ...

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