Skip to main content

Thank you for visiting You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

Failure of Interocular Transfer of Brightness Discrimination


EXPERIMENTAL evidence has now established that, with food reward training and testing, an intact corpus callosum is necessary to mediate the interocular transfer of most visual pattern discriminations in cats1,2 and monkeys3 with mid-sagittal section of the optic chiasm. In these animals with surgical interruption of both the optic chiasm and the corpus callosum, visual pattern discriminations learned initially through one eye must be relearned when the untrained eye is tested alone. On the other hand, the interocular transfer of a simple brightness or flux discrimination is apparently complete in these same cats4 and monkeys5 with mid-sagittal section of both the optic chiasm and the corpus callosum. Since these latter results suggest that commissures other than the corpus callosum can mediate the transfer of this type of visual learning, this experiment was designed to attempt to prevent the interocular transfer of a simple brightness or flux discrimination by sectioning other forebrain and midbrain commissures in addition to the optic chiasm and the corpus callosum.

This is a preview of subscription content, access via your institution

Access options

Rent or buy this article

Get just this article for as long as you need it


Prices may be subject to local taxes which are calculated during checkout


  1. Myers, R. E., J. Comp. Physiol. Psychol., 48, 470 (1955).

    Article  CAS  Google Scholar 

  2. Sperry, R. W., Stamm, J. S., and Miner, N., J. Comp. Physiol. Psychol., 49, 529 (1956).

    Article  Google Scholar 

  3. Downer, J. L. deC., Fed. Proc., 17, 37 (1958).

    Google Scholar 

  4. Meikle, T. H., and Sechzer, J. A., Science, 132, 734 (1960).

    Article  ADS  CAS  Google Scholar 

  5. Trevarthen, C. B., Science, 136, 258 (1962).

    Article  ADS  CAS  Google Scholar 

  6. Meikle, T. H., Sechzer, J. A., and Stellar, E., J. Neurophysiol., 25, 530 (1962).

    Article  Google Scholar 

  7. Robinson, J. S., and Voneida, T. J., Amer. Psychol., 16, 447 (1961).

    Google Scholar 

Download references

Author information

Authors and Affiliations


Rights and permissions

Reprints and Permissions

About this article

Cite this article

MEIKLE, T. Failure of Interocular Transfer of Brightness Discrimination. Nature 202, 1243–1244 (1964).

Download citation

  • Issue Date:

  • DOI:

This article is cited by


By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.


Quick links

Nature Briefing

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing