There is a theory in autism called the "temporal binding deficit," which means that individuals with autism have reduced integration of specialized local neural networks in the brain. It is an element to help explain the Weak Central Coherence (the ability to process information in context). The temporal binding deficit might be due to a reduction in the synchronization of high-frequency gamma waves between local networks processing local features. This may cause some of the deficits in communication in autism. (Brock, Brown, Boucher & Rippon, 2002).
However, gamma band activity plays an essential role in auditory RHYTHM perception. (Induced activity refers to changes in ongoing brain activity induced by processing of stimuli or movement preparation. A well-studied type of induced activity is amplitude change in oscillatory activity. For instance, gamma activity often increases during increased mental activity such as during object representation. - wikipedia) Induced gamma band activity may reflect expectancies for pulse and meter, and be related to synchronization in the brain to outside stimuli (Zanto, Snyder, Large, 2006).
So, the use of rhythm may help that gamma band activity in autism so that neural networks may communicate, and help with synchronization to the outside world??? Rhythm calms the sensory system and facilitates communication???
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