Title
Localized Bumps of Activity Sustained by Inhibition in a Two-Layer Thalamic Network.
Abstract
Based on head direction experiments in rats, the existence of localized bumps of thalamic activity has been proposed. We computationally demonstrate the existence of a novel class of localized bump solutions in a two-layer conductance-based thalamic network and analyze the mechanisms behind these stable patterns. In contrast to previous models of bump activity, here inhibition plays a crucial role in initially spreading neuronal firing and in subsequently sustaining it. In our model, we incorporate local strong, fast GABAA inhibition and diffuse weak, slow GABAB inhibition, based on previous biophysical experiments. These forms of inhibition contribute in different, yet complementary, ways to the observed pattern formation.
Year
DOI
Venue
2001
10.1023/A:1011220332546
Journal of Computational Neuroscience
Keywords
Field
DocType
localized activity,head direction cells,thalamus,conductance-based model,synaptic coupling
Thalamus,Synapse,Neuroscience,Nerve net,Neural Inhibition,Head direction cells,GABAA receptor,Pattern formation,Electrophysiology,Mathematics
Journal
Volume
Issue
ISSN
10
3
0929-5313
Citations 
PageRank 
References 
10
1.13
5
Authors
3
Name
Order
Citations
PageRank
Jonathan E. Rubin123531.34
david terman213219.20
Carson C. Chow345360.03