Behavioral auditory function after transection of crossed olivo-cochlear bundle in the cat. III. Further study of ambient light intensity discrimination under intense noise.

This report describes the results in cats of a visual-auditory dual modal experiment after translateral olivo-cochlear bundle ablation at the floor of fourth ventricle. Subjects were behaviorally conditioned (avoidance) to respond in a shuttle box to show that they detected changes in ambient light intensity during the existence of intense background noise. With the given experimental paradigm, no noticeable difference was found between the response of the experimental animals and those of animals that underwent sham operation.