Laminar Thermocoagulation of the Visual Cortex of the Rat

Authors:
  • NLNorman H. Levey
    Norman H. Levey
  • JJJohn A. Jane
    John A. Jane

Abstract
Lesions were made in the visual cortex of hooded rats by laminar thermocoagulation and later examined using modifications of the Fink-Heimer method. Following lesions limited to supragranular layers a dense, descending projection to layer V was identified, as well as a probable projection to deep layer III, callosal and cortico-cortical projections, but no subcortical projections. The morphological changes in the degenerating systems were examined as a function of survival time. The anatomical basis of functional derangement related to superficial lesions of visual cortex was discussed.

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