[Characteristics of cat sensomotor cortex neuron responses to monaural and binaural stimulation].

In cats, the technique of localization parameter of dichotic sounds showed the binaural stimulation to be more effective than the monaural one. The interaural difference in intensity and time modified characteristics of neuronal responses in the sensorymotor cortex (SMC), the responses being most obvious in 67--88% of cases at the minor, approximating zero, temporal and amplitude interaural shifts. The SMC neurons altered their spontaneous activity in response to signals simulating movement of the sound source in horizontal plane. 74% of these neurons seemed to prefer the velocity up to 48 degrees/sec. These features of the SMC neuronal responses can be of major importance for formation and regulation of the cortical programs for willed motor acts of the animals in the course of acoustic orientation.