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Proceedings Paper

Cooperative mechanism for improving discriminating ability in chemoreceptor neuron and other sensory devices
Author(s): A. K. Vidybida
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Paper Abstract

The natural sensory systems of some species are characterized as having good discriminating ability and sensitivity. Specific neural mechanisms which ensure high informational quality of sensory tract are distributed over the whole tract length, and can be found even at the very beginning of it. In the olfactory receptor neuron, which is the primary reception point for sensing odors, the process of neuronal triggering is cooperative and threshold-type in a sense that the neuron can fire if and only if the number of its receptor proteins which are bound with odor molecules is above a definite threshold. The receptor proteins have discriminating ability expressed in terms of different dissociation constants for different chemicals. The discriminating ability of the receptor neuron can be characterized in terms of different firing rates for different odors. It is shown that the neuronal discriminating ability can be much higher than that of its receptor proteins, provided the odors are presented in low concentrations.

Paper Details

Date Published: 12 June 2001
PDF: 6 pages
Proc. SPIE 4425, Selected Papers from the International Conference on Optoelectronic Information Technologies, (12 June 2001); doi: 10.1117/12.429720
Show Author Affiliations
A. K. Vidybida, Bogolyubov Institute for Theoretical Physics (Ukraine)

Published in SPIE Proceedings Vol. 4425:
Selected Papers from the International Conference on Optoelectronic Information Technologies
Sergey V. Svechnikov; Volodymyr P. Kojemiako; Sergey A. Kostyukevych, Editor(s)

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