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

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons84098

Munk,  MHJ
Department Physiology of Cognitive Processes, Max Planck Institute for Biological Cybernetics, Max Planck Society;

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Zitation

Pipa, G., Städtler ES, Rodriguez EF, Waltz JA, Muckli LF, Singer W, Göbel, R., & Munk, M. (2009). Performance- and stimulus-dependent oscillations in monkey prefrontal cortex during short-term memory. Frontiers in Integrative Neuroscience, 3(25), 1-13. doi:10.3389/neuro.07.025.2009.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0013-C26C-7
Zusammenfassung
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