title: Propagating neocortical gamma bursts are coordinated by traveling alpha waves.
abstract: Neocortical neuronal activity is characterized by complex spatiotemporal dynamics. Although slow oscillations have been shown to travel over space in terms of consistent phase advances, it is unknown how this phenomenon relates to neuronal activity in other frequency bands. We here present electrocorticographic data from three male and one female human subject and demonstrate that gamma power is phase locked to traveling alpha waves. Given that alpha activity has been proposed to coordinate neuronal processing reflected in the gamma band, we suggest that alpha waves are involved in coordinating neuronal processing in both space and time.
authors.affiliation: Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen, 6525EN, Nijmegen, The Netherlands, Rudolf Magnus Institute, Utrecht University, 3584CX, Utrecht, The Netherlands, The Sheryl and Daniel R. Tishman Cognitive Neurophysiology Laboratory, Children's Evaluation and Rehabilitation Center, Department of Pediatrics and Neuroscience, Albert Einstein College of Medicine, Bronx, New York 10461, and Department of Neurological Surgery, Weill Cornell Medical College, New York Presbyterian Hospital, New York, New York 10021.
authors.forename: Ali
authors.initials: A
authors.lastname: Bahramisharif
authors.forename: Marcel A J
authors.initials: MA
authors.lastname: van Gerven
authors.forename: Erik J
authors.initials: EJ
authors.lastname: Aarnoutse
authors.forename: Manuel R
authors.initials: MR
authors.lastname: Mercier
authors.forename: Theodore H
authors.initials: TH
authors.lastname: Schwartz
authors.forename: John J
authors.initials: JJ
authors.lastname: Foxe
authors.forename: Nick F
authors.initials: NF
authors.lastname: Ramsey
authors.forename: Ole
authors.initials: O
authors.lastname: Jensen
mesh_terms: D000328:Adult; D000513:Alpha Rhythm / Q000502:physiology*; D003627:Data Interpretation, Statistical; D004569:Electroencephalography; D058407:Electroencephalography Phase Synchronization; D005260:Female; D006801:Humans; D008297:Male; D019579:Neocortex / Q000166:cytology / Q000502:physiology*; D009474:Neurons / Q000502:physiology