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Visual cortical detector neurons in the Siberian chipmunkEutamias sibiricus

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Abstract

Three functional classes of neurons are described in the visual cortex of the Siberian chipmunk: neurons not selective for direction of movement and orientation, neurons selective for movement in a particular direction, and neurons selective for orientation. Unselective and directionally-selective neurons were activated maximally at speeds of movement of 100–500 deg/sec or more, most orientation-selective neurons at speeds of 10–50 deg/sec. For all three classes of neurons clear correlation was observed between selectivity for velocity of movement and character of responses to presentation of stimuli stationary in the receptive field. With reference to this sign the neurons were divided into two groups: phasic (fast) and tonic (slow). Phasic (fast) neurons predominate in the visual cortex ofEutamias sibiricus.

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Authors
  1. E. V. Polkoshnikov
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A. N. Severtsov Institute of Evolutionary Morphology and Ecology of Animals, Academy of Sciences of the USSR, Moscow. Translated from Neirofiziologiya, Vol. 16, No. 6, pp. 807–814, November–December, 1984.

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Polkoshnikov, E.V. Visual cortical detector neurons in the Siberian chipmunkEutamias sibiricus . Neurophysiology 16, 620–627 (1984). https://doi.org/10.1007/BF01052681

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  • DOI: https://doi.org/10.1007/BF01052681

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