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Cellular and Network Mechanisms Underlying Information Processing in a Simple Sensory SystemRealistic, biophysically-based compartmental models were constructed of several primary sensory interneurons in the cricket cercal sensory system. A dynamic atlas of the afferent input to these cells was used to set spatio-temporal parameters for the simulated stimulus-dependent synaptic inputs. We examined the roles of dendritic morphology, passive membrane properties, and active conductances on the frequency tuning of the neurons. The sensitivity of narrow-band low pass interneurons could be explained entirely by the electronic structure of the dendritic arbors and the dynamic sensitivity of the SIZ. The dynamic characteristics of interneurons with higher frequency sensitivity required models with voltage-dependent dendritic conductances.
Document ID
20020051394
Acquisition Source
Ames Research Center
Document Type
Preprint (Draft being sent to journal)
Authors
Jacobs, Gwen
(Montana State Univ. MT United States)
Henze, Chris
(NASA Ames Research Center Moffett Field, CA United States)
Biegel, Bryan
Date Acquired
August 20, 2013
Publication Date
January 1, 2002
Subject Category
Life Sciences (General)
Meeting Information
Meeting: Cooperative Dynamics of Neural Systems
Location: Pucon
Country: Chile
Start Date: April 1, 2002
End Date: April 4, 2002
Funding Number(s)
CONTRACT_GRANT: DTTS59-99-D-0437
CONTRACT_GRANT: NASA Order A-61812-D
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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