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  Coherent Dynamics in the Frontal Cortex of the Behaving Monkey: Experimental Observations and Model Interpretation

Aertsen, A., Erb, M., Haalman, I., & Vaadia, E. (1996). Coherent Dynamics in the Frontal Cortex of the Behaving Monkey: Experimental Observations and Model Interpretation. In I. Gath, & G. Inbar (Eds.), Advances in Processing and Pattern Analysis of Biological Signals (pp. 205-224). London, UK: Plenum Press.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0006-A34C-D Version Permalink: http://hdl.handle.net/21.11116/0000-0006-A34D-C
Genre: Conference Paper

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 Creators:
Aertsen, A, Author              
Erb, M1, Author              
Haalman, I, Author
Vaadia, E, Author
Affiliations:
1External Organizations, ou_persistent22              

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 Abstract: We have explored the hypothesis that cortical function is mediated by dynamic modulation of coherent firing in groups of neurons. Multiple single neuron activity was recorded in the frontal cortex of behaving monkeys, and analyzed for signs of correlation, using recently developed tools of dynamic correlation analysis. Correlation between neurons changed frequently within a fraction of a second, and in relation to stimuli and behavioral events. Moreover, the dynamic patterns of correlation depended on the distance between neurons. These findings support the notion that, in order to perform a computational task, neurons can associate rapidly into a functional group, while dissociating from concurrently activated competing groups. Possible mechanisms underlying such dynamic organization were investigated in spiking neural network models. We found that similar dynamic organization can be accomplished in these models, even without associated modifications of the synaptic connections. We discuss the consequences of. these findings for the spatio-temporal organization of cortical cell assemblies.

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 Dates: 1996
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1007/978-1-4757-9098-6_15
 Degree: -

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Title: Bat-Sheva De Rotschild Seminar
Place of Event: Haifa, Israel
Start-/End Date: 1995-03-19 - 1995-03-25

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Title: Advances in Processing and Pattern Analysis of Biological Signals
Source Genre: Proceedings
 Creator(s):
Gath, I, Editor
Inbar, GF, Editor
Affiliations:
-
Publ. Info: London, UK : Plenum Press
Pages: 424 Volume / Issue: - Sequence Number: 15 Start / End Page: 205 - 224 Identifier: ISBN: 0-306-45215-4