The function of the brain in auditory localization. IV. Method of training and control experiments

A Y-shaped apparatus with a buzzer sounding at the end of one arm (which varied from trial to trial in a random manner) was used to test for sound localization. This apparatus, when used with preliminary training, elicited rapid learning. Various controls of visual, vibratory, and other extraneous factors were observed. Preference for the sound was not present in normal animals. Operated rats showed an initial tendency to avoid the sound. Restitution of auditory function after operation was shown by the 15th day. A critical auditory brain area was located. Some evidence of a relation between restitution of auditory function and area of the brain lesion was disclosed. Normal and operated animals required the same training time. Bibliography.