Biological Cybernetics

, Volume 59, Issue 4, pp 229–236

Factors governing the adaptation of cells in area-17 of the cat visual cortex

  • T. Maddess
  • M. E. McCourt
  • B. Blakeslee
  • R. B. Cunningham
Article

DOI: 10.1007/BF00332911

Cite this article as:
Maddess, T., McCourt, M.E., Blakeslee, B. et al. Biol. Cybern. (1988) 59: 229. doi:10.1007/BF00332911

Abstract

Neurons in area 17 of the cat visual cortex adapt when stimulated by drifting patterns of optimal orientation, spatial frequency and temporal frequency (Ohzawa et al. 1982; Albrecht et al. 1984; Ohzawa et al. 1985). A component of this adaptation has been attributed to a contrast gain-control mechanism, rather than to neural fatigue, and results in enhanced differential sensitivity around the adapting contrast level (Ohzawa et al. 1982; Albrecht et al. 1984; Ohzawa et al. 1985). Experiments described here suggest that neural response rate, the directional selectivity of the cell, and the temporal frequency of the stimulus, are the principal determinants of adaptation, irrespective of other stimulus parameters such as contrast, velocity, or spatial frequency. The present results can nevertheless accommodate the results of previous studies of adaptation, and additionally provide scope for the resolution of apparent contradictions between results from psychophysical and neurophysiological studies of adaptation.

Copyright information

© Springer-Verlag 1988

Authors and Affiliations

  • T. Maddess
    • 1
    • 2
  • M. E. McCourt
    • 2
    • 3
    • 4
  • B. Blakeslee
    • 1
    • 3
    • 4
  • R. B. Cunningham
    • 5
  1. 1.Department of Neurobiology, Research School of Biological SciencesThe Australian National UniversityCanberraAustralia
  2. 2.Visual Neurosciences UnitJohn Curtin School of Medical ResearchCanberraAustralia
  3. 3.Department of PsychologyUniversity of TexasAustinUSA
  4. 4.Institute for Neurological Sciences ResearchUniversity of TexasAustinUSA
  5. 5.Department of Statistics, The FacultiesAustralian National UniversityCanberraAustralia

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