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  Rate coherence and event coherence in the visual cortex: a neuronal model of object recognition

Neven, H., & Aertsen, A. (1992). Rate coherence and event coherence in the visual cortex: a neuronal model of object recognition. Biological Cybernetics, 67(4), 309-322. doi:10.1007/BF02414887.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0005-0C41-5 Version Permalink: http://hdl.handle.net/21.11116/0000-0005-0C42-4
Genre: Journal Article

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 Creators:
Neven, H1, 2, Author              
Aertsen, A1, 2, Author              
Affiliations:
1Former Department Structure and Function of Natural Nerve-Net , Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497803              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497794              

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 Abstract: We propose a function-oriented model of the visual cortex. The model addresses an essential task of the visual system: to detect and represent objects. These are defined as sets, which reappear in the input with invariant inner relations. A network, incorporating an idealized description of anatomical and physiological data, is presented with a movie showing various moving objects. In the course of time, as a result of Hebbian plasticity, a connection scheme develops which embodies in its forward and lateral connections the information necessary to perform the operations involved in object recognition. We demonstrate that coherent neural activity can exploit this information. Two types of coherence have to be distinguished in this respect. Rate coherence performs invariance operations and association, while event coherence accomplishes segmentation tasks. The model reproduces and explains experimental findings made both in physiological recordings from the visual cortex and in psychophysical studies.

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 Dates: 1992-08
 Publication Status: Published in print
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 Identifiers: DOI: 10.1007/BF02414887
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Title: Biological Cybernetics
  Other : Biol. Cybern.
Source Genre: Journal
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Publ. Info: Berlin : Springer
Pages: - Volume / Issue: 67 (4) Sequence Number: - Start / End Page: 309 - 322 Identifier: ISSN: 0340-1200
CoNE: https://pure.mpg.de/cone/journals/resource/954927549307