dorsal/arxiv
View SchemaThe role of inhibitory feedback for information processing in thalamocortical circuits
| Authors | Joerg Mayer, Heinz Georg Schuster, Jens Christian Claussen |
|---|---|
| Categories | |
| ArXiv ID | q-bio/0510040 |
| URL | https://arxiv.org/abs/q-bio/0510040 |
| DOI | 10.1103/PhysRevE.73.031908 |
| Journal | Phys. Rev. E 73, 031908 (2006) |
Abstract
The information transfer in the thalamus is blocked dynamically during sleep, in conjunction with the occurence of spindle waves. As the theoretical understanding of the mechanism remains incomplete, we analyze two modeling approaches for a recent experiment by Le Masson {\sl et al}. on the thalamocortical loop. In a first step, we use a conductance-based neuron model to reproduce the experiment computationally. In a second step, we model the same system by using an extended Hindmarsh-Rose model, and compare the results with the conductance-based model. In the framework of both models, we investigate the influence of inhibitory feedback on the information transfer in a typical thalamocortical oscillator. We find that our extended Hindmarsh-Rose neuron model, which is computationally less costly and thus siutable for large-scale simulations, reproduces the experiment better than the conductance-based model. Further, in agreement with the experiment of Le Masson {\sl et al}., inhibitory feedback leads to stable self-sustained oscillations which mask the incoming input, and thereby reduce the information transfer significantly.
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"abstract": "The information transfer in the thalamus is blocked dynamically during sleep,\nin conjunction with the occurence of spindle waves. As the theoretical\nunderstanding of the mechanism remains incomplete, we analyze two modeling\napproaches for a recent experiment by Le Masson {\\sl et al}. on the\nthalamocortical loop. In a first step, we use a conductance-based neuron model\nto reproduce the experiment computationally. In a second step, we model the\nsame system by using an extended Hindmarsh-Rose model, and compare the results\nwith the conductance-based model. In the framework of both models, we\ninvestigate the influence of inhibitory feedback on the information transfer in\na typical thalamocortical oscillator. We find that our extended Hindmarsh-Rose\nneuron model, which is computationally less costly and thus siutable for\nlarge-scale simulations, reproduces the experiment better than the\nconductance-based model. Further, in agreement with the experiment of Le Masson\n{\\sl et al}., inhibitory feedback leads to stable self-sustained oscillations\nwhich mask the incoming input, and thereby reduce the information transfer\nsignificantly.",
"arxiv_id": "q-bio/0510040",
"authors": [
"Joerg Mayer",
"Heinz Georg Schuster",
"Jens Christian Claussen"
],
"categories": [
"q-bio.NC",
"cond-mat.dis-nn",
"nlin.CD",
"physics.bio-ph"
],
"doi": "10.1103/PhysRevE.73.031908",
"journal_ref": "Phys. Rev. E 73, 031908 (2006)",
"title": "The role of inhibitory feedback for information processing in thalamocortical circuits",
"url": "https://arxiv.org/abs/q-bio/0510040"
},
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