Experimental Brain Research

, Volume 136, Issue 1, pp 108–113

Neurons with large bilateral receptive fields in monkey prelunate gyrus

  • Ivan N. Pigarev
  • Hans-Christoph Nothdurft
  • Sabine Kastner
Research Article

DOI: 10.1007/s002210000566

Cite this article as:
Pigarev, I., Nothdurft, HC. & Kastner, S. Exp Brain Res (2001) 136: 108. doi:10.1007/s002210000566

Abstract.

In single-cell recordings from the dorsocaudal part of the prelunate gyrus of an alert monkey (Macacafascicularis) we found neurons with unexpectedly large receptive fields (RFs) that spread bilaterally into the contra- and ipsilateral visual fields. These neurons (n=82) appeared to be clustered in the periphery of V4. They were surrounded by neurons with relatively small (3–10°) and unilateral RFs in the contralateral field with properties similar to those previously described for neurons in area V4. Bilateral RFs extended over large parts of the lower visual field but always spared the fovea. Receptive fields typically revealed two foci of maximal responsiveness that were arranged symmetrically in the ipsi- and contralateral fields. Twenty-six cells did not respond to stimuli along the vertical meridian; these neurons had two distinct RFs. The preference for stimulus orientation, color, or motion was similar in all parts of these large RFs.

Visual cortex Extrastriate areas Symmetry Area V4 

Copyright information

© Springer-Verlag 2000

Authors and Affiliations

  • Ivan N. Pigarev
    • 1
  • Hans-Christoph Nothdurft
    • 1
  • Sabine Kastner
    • 1
  1. 1.Max Planck Institute for Biophysical Chemistry, AG Neurobiology (110), 37070 Göttingen, Germany
  2. 2.Institute for Problems of Information Transmission, Russian Academy of Sciences, 101447, Moscow, Russia
  3. 3.Laboratory of Brain and Cognition, LPP, NIMH 49/1B80, Bethesda, MD 20892, USA
  4. 4.Present address: Department of Psychology, Princeton University, Green Hall, Princeton, NJ 08544, USA

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