Significance of gamma

Gamma rhythms have been linked with sensory processing and with perception and other cognitive functions. Gamma rhythms may play roles in other psychiatric conditions. For instance, a recent study reveals increased beta and decreased gamma band signals in patients with schizophrenia. It is tempting to speculate that rather subtle changes in the networks responsible for gamma and beta rhythms could be at fault.

Gamma rhythms are intimately linked with epilepsy. Coherent neural activity at gamma frequencies is associated with some kinds of epileptic activity. Gamma rhythms are disrupted in at least one chronic model of epilepsy associated with learning impairments. Finally, the ideas behind the synaptic network mechanisms of the two kinds of phenomena have much in common.

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