Results 161 to 170 of about 5,105 (175)
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Morphological and electrophysiological characteristics of the commissural system in the superior colliculi for control of eye movements

2019
Commissural connections between the superior colliculi (SCs) were well known anatomically, and assumed to be only inhibitory in relation to visual inputs. However, by recording intracellular potentials, we revealed that a strong monosynaptic excitatory commissural connection exists between the rostral SCs of the cat.
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[The functional connections of the supraoptic and suprachiasmatic nuclei of the anterior hypothalamus with the superior colliculi].

Zhurnal vysshei nervnoi deiatelnosti imeni I P Pavlova, 1989
Interrelation of single hypothalamic (supraoptic--SO and suprachiasmatic--SCH nuclei) and light stimuli at the level of superior colliculus (SC) were studied during chronic experiments in waking rabbits. Short-term inhibitory and the subsequent facilitatory effects of the hypothalamic stimuli on SC responses induced by light flashes were established ...
N M, Rzaeva, N A, Gadzhieva
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[Oscillating potentials of the retina and superior colliculi and correlations with neuronal activity].

Fiziologicheskii zhurnal SSSR imeni I. M. Sechenova, 1985
The oscillatory potentials of retina and superior colliculus induced with photostimuli were studied in unanesthetized rabbits. Increasing intensity of light flashes induces a better correlation of the responses in these structures. A common genesis of the oscillatory processes and neuronal activity was revealed.
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[Neurono-vascular relations in the superior colliculi of the cat tectum mesencephali].

Arkhiv anatomii, gistologii i embriologii, 1983
The brain preparations have been obtained from 20 cats after vital injection of their vessels with Indian ink and gelatin and a subsequent additional staining of paraffin sections after Nissle. The cytoarchitectonic stratification of the structural formation studied is demonstrated to correspond to its division into four microvascular layers.
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[Directional selectivity of the neurons of the superior colliculi in the cat: the effect of the rate of movement of a stimulus].

Fiziologicheskii zhurnal SSSR imeni I. M. Sechenova, 1985
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 ...
G I, Novikov   +2 more
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Functions of the Superior Colliculi in Vision

The Pedagogical Seminary and Journal of Genetic Psychology, 1936
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[Directional selectivity of neurons of the superior colliculi of the lamina quadrigemina in visually deprived rabbits].

Zhurnal vysshei nervnoi deiatelnosti imeni I P Pavlova, 1977
The reactivity of neurones in the superior colliculi to the movement of the optic stimulus was studied in monocularly and binocularly deprived rabbits (MD and BD). Deprivation was effected by suturing the eyelids before the eyes opened. The neurones were classified into three groups by the degree of their directional selectivity (absolute, relative and
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Effects of electrical stimulation of the superior colliculi on focal epileptic activity in the cerebral cortex

Bulletin of Experimental Biology and Medicine, 1993
A A Shandra   +2 more
exaly  

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