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  • Title: [Directional selectivity of the neurons of the superior colliculi in the cat: the effect of the rate of movement of a stimulus].
    Author: Novikov GI, Kiseleva NB, Podvigin NF.
    Journal: Fiziol Zh SSSR Im I M Sechenova; 1984 Oct; 70(10):1436-41. PubMed ID: 6510530.
    Abstract:
    Responses to stimuli moving with velocities of 3-180 degrees X sec-1 were studied in each of four axes (eight directions) separated by 45 degrees in neurons of the cat superior colliculus. 69% of units were directionally selective. In 55% of all the neurons the directional selectivity depended on stimulus velocity and was the largest for high velocities (over 10-30 degrees X sec-1). The preferred direction for some neurons was reversed with velocity increasing. The directional selectivity-velocity relationships were compared for the cat superior colliculus and visual cortex and discussed in regard to probable role of this phenomenon in the oculomotor system.
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