title: Dynamics of electrocorticographic (ECoG) activity in human temporal and frontal cortical areas during music listening.
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.
authors.affiliation: BCI R&D Program, Wadsworth Center, New York State Department of Health, Albany, NY 12201, USA. cmpotes@gmail.com
authors.forename: Cristhian
authors.initials: C
authors.lastname: Potes
authors.forename: Aysegul
authors.initials: A
authors.lastname: Gunduz
authors.forename: Peter
authors.initials: P
authors.lastname: Brunner
authors.forename: Gerwin
authors.initials: G
authors.lastname: Schalk
mesh_terms: D000161:Acoustic Stimulation; D000328:Adult; D001307:Auditory Perception / Q000502:physiology*; D001931:Brain Mapping; D004567:Electrodes, Implanted; D004569:Electroencephalography; D004827:Epilepsy / Q000503:physiopathology; D005260:Female; D005625:Frontal Lobe / Q000502:physiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009146:Music; D013702:Temporal Lobe / Q000502:physiology*; D055815:Young Adult