Dynamics of electrocorticographic (ECoG) activity in human temporal and frontal cortical areas during music listening.

TitleDynamics of electrocorticographic (ECoG) activity in human temporal and frontal cortical areas during music listening.
Publication TypeJournal Article
Year of Publication2012
AuthorsPotes, C, Gunduz, A, Brunner, P, Schalk, G
JournalNeuroimage
Volume61
Issue4
Pagination841-8
Date Published07/2012
ISSN1095-9572
Keywordsauditory processing, electrocorticography (ECoG), high gamma activity, sound intensity
Abstract Previous studies demonstrated that brain signals encode information about specific features of simple auditory stimuli or of general aspects of natural auditory stimuli. How brain signals represent the time course of specific features in natural auditory stimuli is not well understood. In this study, we show in eight human subjects that signals recorded from the surface of the brain (electrocorticography (ECoG)) encode information about the sound intensity of music. ECoG activity in the high gamma band recorded from the posterior part of the superior temporal gyrus as well as from an isolated area in the precentral gyrus was observed to be highly correlated with the sound intensity of music. These results not only confirm the role of auditory cortices in auditory processing but also point to an important role of premotor and motor cortices. They also encourage the use of ECoG activity to study more complex acoustic features of simple or natural auditory stimuli.
URLhttp://www.ncbi.nlm.nih.gov/pubmed/22537600
DOI10.1016/j.neuroimage.2012.04.022
Alternate JournalNeuroimage
PubMed ID22537600
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