Performance- and stimulus-dependent oscillations in monkey prefrontal cortex during short-term memory

Short-term memory requires the coordination of sub-processes like encoding, retention, retrieval and comparison of stored material to subsequent input. Neuronal oscillations have an inherent time structure, can effectively coordinate synaptic integration of large neuron populations and could therefo...

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Bibliographic Details
Published in:	Frontiers in integrative neuroscience Vol. 3; p. 25
Main Authors:	Pipa, Gordon, Städtler, Ellen S, Rodriguez, Eugenio F, Waltz, James A, Muckli, Lars F, Singer, Wolf, Goebel, Rainer, Munk, Matthias H J
Format:	Journal Article
Language:	English
Published:	Switzerland Frontiers Research Foundation 01-01-2009 Frontiers Media S.A
Subjects:	behavioral performance local field potential Neuroscience Prefrontal Cortex stimulus coding visual short-term memory local field potential behavioral performance stimulus coding visual short-term memory prefrontal cortex
Online Access:	Get full text
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Summary:	Short-term memory requires the coordination of sub-processes like encoding, retention, retrieval and comparison of stored material to subsequent input. Neuronal oscillations have an inherent time structure, can effectively coordinate synaptic integration of large neuron populations and could therefore organize and integrate distributed sub-processes in time and space. We observed field potential oscillations (14-95 Hz) in ventral prefrontal cortex of monkeys performing a visual memory task. Stimulus-selective and performance-dependent oscillations occurred simultaneously at 65-95 Hz and 14-50 Hz, the latter being phase-locked throughout memory maintenance. We propose that prefrontal oscillatory activity may be instrumental for the dynamical integration of local and global neuronal processes underlying short-term memory.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 Reviewed by: Gregor Rainer, Max Planck Institute for Biological Cybernetics, Germany; Steven Bressler, Florida Atlantic University, USA Edited by: Rui M. Costa, Instituto Gulbenkian de Ciência, Portugal
ISSN:	1662-5145 1662-5145
DOI:	10.3389/neuro.07.025.2009