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Theory for the development of neuron selectivity: orientation specificity and binocular interaction in visual cortex (1982)
| Venue: | J. Neurosci |
| Citations: | 432 - 20 self |
BibTeX
@ARTICLE{Bienenstock82theoryfor,
author = {Elie L. Bienenstock and Leon N Cooper and Paul W. Munro},
title = {Theory for the development of neuron selectivity: orientation specificity and binocular interaction in visual cortex},
journal = {J. Neurosci},
year = {1982},
pages = {32--48}
}
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Abstract
The development of stimulus selectivity in the primary sensory cortex of higher vertebrates is considered in a general mathematical framework. A synaptic evolution scheme of a new kind is proposed in which incoming patterns rather than converging afferents compete. The change in the efficacy of a given synapse depends not only on instantaneous pre- and postsynaptic activities but also on a slowly varying time-averaged value of the postsynaptic activity. Assuming an appropriate nonlinear form for this dependence, development of selectivity is obtained under quite general conditions on the sensory environment. One does not require nonlinearity of the neuron’s integrative power nor does one need to assume any particular form for intracortical circuitry. This is first illustrated in simple cases, e.g., when the environment consists of only two different stimuli presented alternately in a random manner. The following formal statement then holds: the state of the system converges with probability 1 to points of maximum selectivity in the state space. We next consider the problem of early development of orientation selectivity and binocular interaction in primary visual cortex. Giving the environment an appropriate form, we obtain orientation tuning curves and ocular dominance comparable to what is observed in normally reared adult cats or monkeys.
Keyphrases
binocular interaction visual cortex orientation specificity neuron selectivity postsynaptic activity appropriate form sensory environment stimulus selectivity formal statement early development general mathematical framework new kind maximum selectivity different stimulus synaptic evolution scheme particular form appropriate nonlinear form primary visual cortex ocular dominance time-averaged value adult cat state space instantaneous pre integrative power orientation selectivity random manner primary sensory cortex general condition intracortical circuitry simple case
