Biological Cybernetics

, Volume 57, Issue 1, pp 11–23

A model of striate response properties based on geniculate anisotropies

  • T. R. Vidyasagar

DOI: 10.1007/BF00318712

Cite this article as:
Vidyasagar, T.R. Biol. Cybern. (1987) 57: 11. doi:10.1007/BF00318712


The orientation biases seen in the responses of cells in the retina and dLGN are dependent on the spatial frequency of the stimulus, being appreciable only at higher spatial frequencies. An inhibitory mechanism that suppresses the responses to low spatial frequencies would leave a striate cell receiving a biased geniculate input with an orientation sensitivity at the higher spatial frequencies. Such an inhibition could in fact come from one or a small group of LGN cells (through cortical interneurones), since their response extends to spatial frequencies much lower than for cortical cells at the same eccentricity. According to this scheme, a number of other striate response characteristics, e.g., their length and spatial frequency response functions, can also be explained.

Copyright information

© Springer-Verlag 1987

Authors and Affiliations

  • T. R. Vidyasagar
    • 1
  1. 1.Max-Planck-Institut für Biophysikalische ChemieGöttingenFederal Republic of Germany

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