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Light aversion of normal and posterior neodecorticate rats

An Erratum to this article was published on 01 March 1976


The light aversion behavior of normal rats and rats with posterior neocortex lesions was examined in a two-choice brightness (card) discrimination task. By varying pretraining procedures, normal rats could be shown to have apparent light preferences, light aversion, or no preferences. Neither normal rats nor lesioned rats showed light avoidance tendencies in tasks in which pretraining biases were removed. The results indicate that the light avoidance tendencies shown by the normal or lesioned rats in free choice tasks are not reflected on card discrimination tasks.


  1. Altman, J. Effects of lesions in central nervous visual structures on light aversion in rats. American Journal of Physiology, 1962, 202, 1208–1210.

    PubMed  Google Scholar 

  2. Bauer, J. H. Visual and nonvisual behavior of the rat after early and late posterior neocortical lesions. Doctoral dissertation, Faculty of Graduate Studies and Research, University of Manitoba, 1968.

  3. Bland, B. H., & Cooper, R. M. Experience and vision of the posterior neodecorticate rat. Physiology and Behavior, 1970, 5, 211–214.

    PubMed  Article  Google Scholar 

  4. Horel, J. A., Bettinger, L. A., Royce, G. J., & Meyer, R. D. Role of the neocortex in the learning and relearning of two visual habits by the rat. Journal of Comparative and Phsyiological Psychology, 1966, 61, 66–78.

    Article  Google Scholar 

  5. Krechevsky, I. Brain mechanisms and brightness discrimination learning. Journal ofComparative Psychology, 1936, 21, 405–445.

    Article  Google Scholar 

  6. Parker, T. D., Erickson, C. K., & Treichler, F. R. The influence of brightness preferences on the assessment of cortical lesion deficits in rats. Journal of Comparative and Physiological Psychology, 1969, 67, 240–244.

    PubMed  Article  Google Scholar 

  7. Parker, T. D., & Treichler, F. R. The influence of restricted posterior neodecortication on brightness preference and brightness discrimination performance of rats. Physiology and Behavior, 1973, 10, 473–478.

    PubMed  Article  Google Scholar 

  8. Stratton, L. O. Effects of dark preference on attention to the positive cue in posterior neodecorticate albino rats. Psychonomic Science, 1971, 24, 105–106.

    Article  Google Scholar 

  9. Stratton, L. O., & Edwards, S. Preference and sensory factors in brightness discrimination learning of posterior neodecorticate albino rats. Psychonomic Science, 1971, 24, 9–10.

    Article  Google Scholar 

  10. Thompson, R., & Bryant, H. J. Memory as affected by the relevant receptor. Psychological Reports, 1955, 1, 393–400.

    Google Scholar 

  11. Whishaw, I. Q. Light avoidance in normal rats and rats with primary visual system lesions. Physiological Psychology, 1974, 2, 143–147.

    Article  Google Scholar 

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Correspondence to Ian Q. Whishaw.

Additional information

This research was supported by grants from the Canadian National Research Council. Dr. J. D. Read sponsors this paper and takes full editorial responsibility for its content.

An erratum to this article is available at

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Whishaw, I.Q. Light aversion of normal and posterior neodecorticate rats. Bull. Psychon. Soc. 7, 96–98 (1976).

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  • Error Score
  • Brightness Discrimination
  • Lateral Geniculate Body
  • White Card
  • Black Card