title: Gamma response of the brain: a multifunctional oscillation that represents bottom-up with top-down processing.
abstract: This paper deals with the functional correlates of the gamma response of the brain. A critical review of the literature findings reveals the existence of two types of gamma responses: an early gamma that fulfills sensory functions and a late gamma that fulfills perceptual-cognitive functions. However, even the early gamma shows individual differences. Such a finding points to the existence of top-down influences on sensory processes and to a parallel-processing model for brain function.
authors.affiliation: Hacettepe University Department of Experimental Psychology, Ankara, Turkey. skarakas@hacettepe.edu.tr
authors.forename: S
authors.initials: S
authors.lastname: Karakaş
authors.forename: C
authors.initials: C
authors.lastname: Başar-Eroglu
authors.forename: C
authors.initials: C
authors.lastname: Ozesmi
authors.forename: H
authors.initials: H
authors.lastname: Kafadar
authors.forename: O U
authors.initials: OU
authors.lastname: Erzengin
mesh_terms: D001921:Brain / Q000502:physiology*; D004569:Electroencephalography; D005071:Evoked Potentials; D006801:Humans; D008959:Models, Neurological