[Responses of neurons of the inferior colliculus of cats to acoustic signals in the presence of interaural temporal differences in stimulation].

In anesthetized cats, neuronal responses in the posterior colliculus to binaural stimulation with series of synphasic and anti-phasic clicks with interaural delay (delta T) changing gradually in time, and to binaural stimulation with tones with different delta T values, were studied. Varying of delta T in the click series induced obvious changes in responses of neurons with optimal frequencies (F0) up to 2.6 kHz. Wide-range change of the delta T made the magnitude of F0 less than or equal to 2.6 kHz neurons responses to clicks and tones the periodic function of delta T. Dependences of the response on delta T were similar for the optimal frequency tones and for the synphasic clicks. The reversed dependence was observed on with of the antiphasic clicks. The data obtained are considered from the standpoint of cochlear mechanisms for sound signals processing.