EEG Gamma Oscillations in Schizophrenia

Authors: T. Kašpárek 1;  I. Riečanský 2
Authors‘ workplace: Psychiatrická klinika LF MU a FN, Brno ;  přednostka prof. MUDr. E. Češková, CSc. Laboratorium kognitivni neurovedy, Ústav normálnej a patologickej fyziológie SAV, Bratislava 1;  ředitelka RNDr. O. Pecháňová, DrSc. 2
Published in: Čes. a slov. Psychiat., 105, 2009, No. 6-8, pp. 257-262.
Category: Comprehensive Reports


Synchronous neuronal oscillations in the gamma frequency band (>30 Hz) is considered a mechanism for binding the activity among distributed neurons and neuronal populations, enabling them to form coherent, holistic representations. Several types of oscillations could be differentiated (spontaneous, evoked, induced, steady-state) reflecting different stages of information processing, but seemingly generated by similar neuronal populations. In schizophrenia changes of many aspects of gamma band oscillations were found. The relationship to symptomatology, treatment effects, neuropathology and pharmacology of schizophrenia make gamma oscillations a meaningful neurophysiological parameter.

Key words:
EEG, gamma band, oscillations, schizophrenia.


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