Effect of auditory cortex ablation on localization and discrimination of brief sounds

I. Dogs with bilateral auditory cortex le-sions were tested on their ability to localize and discriminate brief sounds. In each test the animals were required to approach one of two goal boxes in order to indicate their response. 2. The results showed: a) that the operated animals could not solve the localization tasks when the goal boxes were located more than 125 cm away, but could solve the task if the goal boxes were located closer to the animal; b) that the operated animals could success-fully discriminate brief bursts of click trains (i.e., 100/s versus IO/s, 0.3 s duration) even when required to indicate their discrimina