Coding of spatial co-ordinates on neurones of the feline visual association cortex

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The receptive field properties of 131 visual neurons lying along the anterior ectosylvian sulcus were studied with extracellular recordings in barbiturate-anaesthetized, immobilised, artificially ventilated cats. A stationary visual noise pattern was presented in an area of 24 x 32°, in which an 8 x 8°portion moved randomly at a speed of 10 deg/s. A definite best area characterized by maximal firing rate was found, from where the firing rate declined monotonously towards the periphery of the receptive field. The best area locations were distributed in a 40 x 40°region around the area centralis. These results seem to verify a rather robust capacity in AEV neurones for stimulus localization, in spite of their immense receptive fields. (C) 2000 Lippincott Williams and Wilkins.

Original languageEnglish
Pages (from-to)1381-1384
Number of pages4
Issue number7
Publication statusPublished - May 15 2000



  • Anterior ectosylvian visual area
  • Cat
  • Cortex
  • Electrophysiology
  • Spatial coding
  • Visual

ASJC Scopus subject areas

  • Neuroscience(all)

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