• Neuroreport · Feb 2005

    Review

    Human gamma-band activity: a window to cognitive processing.

    • Jochen Kaiser and Werner Lutzenberger.
    • Institute of Medical Psychology, Johann Wolfgang Goethe-University, Heinrich-Hoffmann-Str. 10, Frankfurt am Main 2MEG-Center, Institute of Medical Psychology and Behavioral Neurobiology, University of Tübingen, Germany. j.kaiser@med.uni-frankfurt.de
    • Neuroreport. 2005 Feb 28; 16 (3): 207-11.

    AbstractThis review highlights recent developments in research on human cortical oscillations in the gamma-band range (30-100 Hz). Electroencephalography has demonstrated a role of these signals for cognitive functions including visual perception, attention, learning and memory. During auditory processing, magnetoencephalogram has identified oscillatory activity in higher frequency ranges and with a more discrete localization than electroencephalogram. Gamma-band activity increases have been observed in the putative auditory dorsal and ventral processing streams during the processing of auditory spatial and pattern information, respectively. Additional gamma-band activity has been found over the frontal cortex during top-down tasks. Oscillatory activity in the gamma range may serve to assess the temporal dynamics of cortical networks and their interactions.

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