Experimental Brain Research

, Volume 44, Issue 2, pp 129–137 | Cite as

Enhanced activation of neurons in prelunate cortex before visually guided saccades of trained rhesus monkeys

  • B. Fischer
  • R. Boch


Single unit recording from trained rhesus monkeys demonstrate that the activity of the prelunate cortex is enhanced when a visual stimulus becomes a target of saccadic eye movement. As a rule, the enhancement is spatially selective: it does not occur if the animal makes an eye movement away from, rather than towards the stimulus. The results show that the prelunate cortex has access to an extraretinal signal which is activated in association with events preceding visually guided eye movements. Whether the signal reflects the initiation of eye movement or the animal's interest in the stimulus, which he usually selects to initiate an eye movement, remains uncertain.

Key words

Visual cortex Eye movements Enhancement Attention Monkey 


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Copyright information

© Springer-Verlag 1981

Authors and Affiliations

  • B. Fischer
    • 1
  • R. Boch
    • 1
  1. 1.Department of NeurophysiologyUniversity of FreiburgFreiburgGermany

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