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  Higher Order Spike Synchrony in Prefrontal Cortex during Visual Memory

Pipa, G., & Munk, M. (2011). Higher Order Spike Synchrony in Prefrontal Cortex during Visual Memory. Frontiers in Computational Neuroscience, 5: 23, pp. 1-13. doi:10.3389/fncom.2011.00023.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-BB5A-4 Version Permalink: http://hdl.handle.net/21.11116/0000-0001-B589-8
Genre: Journal Article

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Pipa, G, Author              
Munk, MHJ1, 2, Author              
Affiliations:
1Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497794              
2Department Physiology of Cognitive Processes, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497798              

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 Abstract: Precise temporal synchrony of spike firing has been postulated as an important neuronal mechanism for signal integration and the induction of plasticity in neocortex. As prefrontal cortex plays an important role in organizing memory and executive functions, the convergence of multiple visual pathways onto PFC predicts that neurons should preferentially synchronize their spiking when stimulus information is processed. Furthermore, synchronous spike firing should intensify if memory processes require the induction of neuronal plasticity, even if this is only for short-term. Here we show with multiple simultaneously recorded units in ventral prefrontal cortex that neurons participate in 3 ms precise synchronous discharges distributed across multiple sites separated by at least 500 μm. The frequency of synchronous firing is modulated by behavioral performance and is specific for the memorized visual stimuli. In particular, during the memory period in which activity is not stimulus driven, larger groups of up to seven sites exhibit performance dependent modulation of their spike synchronization.

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 Dates: 2011-06
 Publication Status: Published online
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 Rev. Method: -
 Identifiers: DOI: 10.3389/fncom.2011.00023
BibTex Citekey: PipaM2011
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Title: Frontiers in Computational Neuroscience
  Abbreviation : Front Comput Neurosci
Source Genre: Journal
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Publ. Info: Lausanne : Frontiers Research Foundation
Pages: - Volume / Issue: 5 Sequence Number: 23 Start / End Page: 1 - 13 Identifier: Other: 1662-5188
CoNE: https://pure.mpg.de/cone/journals/resource/1662-5188