Cortico-thalamic interactions in response to whisker stimulation in a computer model of the rat barrel system

Recent evidence from multi-unit recording experiments in awake rats has suggested that there may be complex, nonlinear interactions between the cortex and thalamus. In order to further study the possible role of the thalamus in cortical sensory processing, we have developed a computational model of...

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Bibliographic Details
Published in:Neurocomputing (Amsterdam) 1999-06, Vol.26, p.809-822
Main Authors: Moxon, K.A, Chapin, J.K
Format: Article
Language:English
Subjects:
Cells
Functional neural stimulation
Neural networks
Neuronal networks
Population response
Receptive fields
Sensory feedback
Somatosensory system
Thalamocortical system
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Summary:Recent evidence from multi-unit recording experiments in awake rats has suggested that there may be complex, nonlinear interactions between the cortex and thalamus. In order to further study the possible role of the thalamus in cortical sensory processing, we have developed a computational model of the coritco-thalamic barrel region. In the model, single whisker stimulation can produce long latency responses in thalamic cells due to feedback from the cortex. Stimulus movement across the receptor surface, in the model, shows the ability of the thalamus to produce “priming” effects in the cortex or “memory” effects depending on the frequency of the stimulation.
ISSN:0925-2312
1872-8286
DOI:10.1016/S0925-2312(98)00151-9