[Source: Best Practice Autism]
Unusual sensory responses (i.e., sensory over-responsivity, sensory under-responsivity, and sensory seeking) are relatively common in children with autism spectrum disorder (ASD). Sensory issues are now included in the DSM-5 ASD symptom criteria for restricted, repetitive patterns of behavior, interests, or activities (RRB), and include hyper-or hypo-reactivity to sensory input or unusual interest in sensory aspects of the environment; such as apparent indifference to pain/heat/cold, adverse response to specific sounds or textures, excessive smelling or touching of objects (American Psychiatric Association, 2013). When present, these problems can interfere with adaptability in many areas of life (communication, daily living, socialization, occupational). For example, sensory processing problems have been found to be associated with eating problems and physical aggression in children with ASD (Mazurek, Kanne, & Wodka, 2013; Nadon, Feldman, Dunn, & Gisel, 2011).