A new look at gamma? High- (>60 Hz) g-band activity in cortical networks: Function, mechanisms and impairment

Uhlhaas, Peter J.; Pipa, Gordon; Maciel, Sergio Tulio Neuenschwander; Wibral, Michael; Singer, Wolf

A new look at gamma? High- (>60 Hz) g-band activity in cortical networks: Function, mechanisms and impairment

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dc.contributor.author	Uhlhaas, Peter J.
dc.contributor.author	Pipa, Gordon
dc.contributor.author	Maciel, Sergio Tulio Neuenschwander
dc.contributor.author	Wibral, Michael
dc.contributor.author	Singer, Wolf
dc.date.accessioned	2017-05-24T13:53:02Z
dc.date.available	2017-05-24T13:53:02Z
dc.date.issued	2011
dc.description.resumo	g-band oscillations are thought to play a crucial role in information processing in cortical networks. In addition to oscillatory activity between 30 and 60 Hz, current evidence from electro- and magnetoencephalography (EEG/MEG) and local-field potentials (LFPs) has consistently shown oscillations >60 Hz (high g-band) whose function and generating mechanisms are unclear. In the present paper, we summarize data that highlights the importance of high g-band activity for cortical computations through establishing correlations between the modulation of oscillations in the 60e200 Hz frequency and specific cognitive functions. Moreover, we will suggest that high g-band activity is impaired in neuropsychiatric disorders, such as schizophrenia and epilepsy. In the final part of the paper, we will review physiological mechanisms underlying the generation of high g-band oscillations and discuss the functional implications of low vs. high g-band activity patterns in cortical networks.	pt_BR
dc.identifier.issn	0079-6107
dc.identifier.uri	https://repositorio.ufrn.br/jspui/handle/123456789/23061
dc.language	eng	pt_BR
dc.rights	Acesso Aberto	pt_BR
dc.subject	Oscillations	pt_BR
dc.subject	Synchrony	pt_BR
dc.subject	Gamma	pt_BR
dc.subject	Cognition	pt_BR
dc.subject	Psychiatry	pt_BR
dc.title	A new look at gamma? High- (>60 Hz) g-band activity in cortical networks: Function, mechanisms and impairment	pt_BR
dc.type	article	pt_BR