Synaptic rectification model equivalent to the correlation-type movement detector

Neural models which are equivalent to the correlation-type movement detector are described. The models involve contrast-coding channels which comprise bandpass linear filters followed by synaptic retifiers. Linear, one-directional lateral interactions are assumed among the contrast-coding channels....

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Bibliographic Details
Published in:Biological cybernetics 1990-01, Vol.64 (1), p.1-6
Main Author: MIZUNAMI, M
Format: Article
Language:English
Subjects:
Animals
Biological and medical sciences
Cybernetics
Fundamental and applied biological sciences. Psychology
Humans
Insecta
Insecta - physiology
Invertebrates
Models, Neurological
Motion
Physiology. Development
Space life sciences
Synapses - physiology
Synaptic Transmission - physiology
Visual Perception - physiology
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Summary:Neural models which are equivalent to the correlation-type movement detector are described. The models involve contrast-coding channels which comprise bandpass linear filters followed by synaptic retifiers. Linear, one-directional lateral interactions are assumed among the contrast-coding channels. Synaptic rectifiers convert linear spatial interaction into a multiplication-like (quadratic) interaction, which is the core of the correlation-type movement detector. One of the neural models (E-I model) well approximates the correlation model in both time-averaged and dynamic (instantaneous) responses. Possible applicability of the model to movement detection by insects is discussed.
ISSN:0340-1200
1432-0770
DOI:10.1007/BF00203624