In 6 alert cats, placing responses to light and their latencies with added sound stimuli were investigated. The latency recovery cycles demonstrated that in cases of sound-light intervals 750-0 ms and light-sound intervals 0-75 ms the latencies to light were reduced, the maximum of this effect being at sound-light intervals 250-200 ms. Latency to light was enhanced at light-sound intervals 100-350 ms, the maximum being at 100-200 ms. Spatial location of sound source affected the latencies: when the sound source spatially coincided with the light source, the effect of latency shortening was most obvious.
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