In 2013, the criteria for autism spectrum disorder changed to include sensory challenges, which are defined as over- and under-responsiveness to lights, sound, touch, etc. Sensory challenges can be a major problem for children during the school day, for example.
Sensory integration therapy is an outgrowth of occupational therapy. Sensory therapies can include the use of weighted vests, sensory "diets" which include brushing and joint compression, as well as sessions with a licensed therapist.