Effect of optic lobe ablation on the visuo-motor behavior of goldfish.

Abstract

Partial ablation of the optic cortex of goldfish did not affect either the eye-movement reflex or the start reflex to a bright light stimulus. Neither qualitative nor quantitative changes were observed in the process of conditioning motor responses to light stimuli following operation. Preopera-tively learned responses were retained without apparent change after the operation. There was some evidence that the process of experimental extinction took place more rapidly following removal of the optic cortex.