[The effects of electric stimulation of the visual cortex of the cat in a behavior model of placing reaction].

In 5 alert cats, the dependence of latency and probability of placing reaction on the parameters of electrical stimulation of visual cortex (the pulse duration and frequency in a series, number of pulses in a series) was studied. The values of current parameters were analogous to those that aroused human phosphens. The results revealed the conformity of the dependence of phosphens and cat's motor reaction on the current parameters. An addition of sound or electrocutaneous stimuli to the current stimulation decreases the threshold of the motor reaction and increases its probability. It is particularly obvious in case of weak and middle intensity currents when the probability of correct reactions to the current is insignificant.