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  Nonlinear Interactions in a Dendritic Tree: Localization, Timing and Role in Information Processing

Poggio, T., & Koch, C.(1981). Nonlinear Interactions in a Dendritic Tree: Localization, Timing and Role in Information Processing (A.I. Memo 657). Cambridge, MA, USA: Massachusetts Institute of Technology: Artificial Intelligence Laboratory.

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https://dspace.mit.edu/handle/1721.1/6367 (Publisher version)
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 Creators:
Poggio, T, Author           
Koch, C1, 2, Author           
Affiliations:
1Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497794              
2Former Department Structure and Function of Natural Nerve-Net , Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497803              

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 Abstract: In a dendritic tree transient synaptic inputs activating ionic conductances with an equilibrium potential near the resting potential can veto very effectively other excitatory inputs. Analog operations of this type can be very specific with respect to relative locations of the inputs and their timing. We examine with computer experiments the precise conditions underlying this effect in the case of b-like cat retinal ganglion cell. The critical condition required for strong and specific interactions is that the peak inhibitory conductance change must be sufficiently large almost independently of other electrical parameters. In this case, a passive dendritic tree may perform hundreds of independent analog operations on its synaptic inputs, without requiring any threshold mechanism.

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 Dates: 1981-09
 Publication Status: Published in print
 Pages: 9
 Publishing info: Cambridge, MA, USA : Massachusetts Institute of Technology: Artificial Intelligence Laboratory
 Table of Contents: -
 Rev. Type: -
 Identifiers: Report Nr.: A.I. Memo 657
 Degree: -

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