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  Recurrent network interactions underlying flow-field selectivity of visual interneurons

Haag, J., & Borst, A. (2001). Recurrent network interactions underlying flow-field selectivity of visual interneurons. The Journal of Neuroscience, 21(15), 5685-5692. doi:10.1523/jneurosci.21-15-05685.2001.

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 Creators:
Haag, J.1, Author           
Borst, Alexander1, Author           
Affiliations:
1University of California at Berkeley, U. S. A., ou_persistent22              

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Free keywords: network interactions motion detection insect vision electrophysiology dendrite intrinsic electrophysiological characteristics plate tangential cells motion sensitive interneurons active membrane-properties graded potential neurons superior temporal area giant vertical cells lobula plate horizontal cells direction selectivity Neurosciences & Neurology
 Abstract: Motion-sensitive large-field neurons found at higher processing stages in many species often exhibit a remarkable selectivity for particular flow fields. However, the underlying neural mechanisms are not yet understood. We studied this problem in the so-called lobula plate tangential cells (LPTCs) of the fly. Investigating the connectivity between LPTCs by means of dual recordings, we find two types of connections: (1) heterolateral connections between LPTCs of both hemispheres and (2) ipsilateral connections between LPTCs within one lobula plate. The circuit is suitable to amplify incoming, dendritic signals in the case of rotatory flow fields and to reduce them in the case of other flow-field structures. In addition to feedforward connectivity, thus, the flow-field selectivity of LPTCs may be significantly attributable to recurrent excitation involving the network of large-field neurons in both brain hemispheres.

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Language(s): eng - English
 Dates: 2001
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: Other: WOS:000170108900034
DOI: 10.1523/jneurosci.21-15-05685.2001
ISSN: 0270-6474
 Degree: -

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Title: The Journal of Neuroscience
  Other : The Journal of Neuroscience: the Official Journal of the Society for Neuroscience
  Abbreviation : J. Neurosci.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Washington, DC : Society of Neuroscience
Pages: - Volume / Issue: 21 (15) Sequence Number: - Start / End Page: 5685 - 5692 Identifier: ISSN: 0270-6474
CoNE: https://pure.mpg.de/cone/journals/resource/954925502187_1