Response covariance in cat visual cortex

Exp Brain Res. 1985;60(3):559-63. doi: 10.1007/BF00236942.


The activity of pairs of neurons in the visual cortex (area 17) of anaesthetized, paralysed cats was recorded using two independently manipulated micropipettes. The number of spikes in the evoked responses of pairs of single neurons were analyzed for response covariance. Responses of the majority of cell pairs (83%) did not covary. Covariance was restricted to closeby neurons with distances of less than 150 microns and with identical orientation and ocular dominance preference.

Publication types

  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Analysis of Variance
  • Animals
  • Cats
  • Electric Stimulation
  • Evoked Potentials, Visual
  • Neural Conduction
  • Neurons / physiology*
  • Reaction Time*
  • Visual Cortex / cytology
  • Visual Cortex / physiology*