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The biophysical properties of spines as a basis for their electrical function: a comment on Kawato and Tsukahara (1983).

Koch, Christof and Poggio, Tomaso (1985) The biophysical properties of spines as a basis for their electrical function: a comment on Kawato and Tsukahara (1983). Journal of Theoretical Biology, 113 (2). pp. 225-229. ISSN 0022-5193. http://resolver.caltech.edu/CaltechAUTHORS:20130816-103203326

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Abstract

In a theoretical study of the passive cable properties of dendritic spines Kawato & Tsukahara (1983) claim to have proved that “the dendritic spine has no significant electrical function” (from their discussion). However, Kawato & Tsukahara restrict their analysis to current inputs to spines. Since the dimensions of spines are very small, their input resistance is expected to be very large and the synaptic input to spines has to be modeled as conductance change. Under this assumption, spines show interesting (non-linear) electrical properties: i) the somatic potential induced by an excitatory synapse on a spine may depend strongly on the shape of the spine and ii) the effect of inhibition might be confined to the spine.


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http://dx.doi.org/10.1016/S0022-5193(85)80225-3DOIArticle
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Group:Koch Laboratory, KLAB
Record Number:CaltechAUTHORS:20130816-103203326
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20130816-103203326
Official Citation:Christof Koch, Tomaso Poggio, The biophysical properties of spines as a basis for their electrical function: a comment on Kawato & Tsukahara (1983), Journal of Theoretical Biology, Volume 113, Issue 2, 21 March 1985, Pages 225-229, ISSN 0022-5193, http://dx.doi.org/10.1016/S0022-5193(85)80225-3. (http://www.sciencedirect.com/science/article/pii/S0022519385802253)
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ID Code:40427
Collection:CaltechAUTHORS
Deposited By: KLAB Import
Deposited On:11 Mar 2010 06:03
Last Modified:17 Oct 2013 18:33

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