Results 181 to 190 of about 23,784 (226)
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Journal of Comparative Neurology, 1977
AbstractThe rate of acquisition of visual form discriminations in cats with superior colliculus damage was measured in a testing apparatus requiring a minimal amount of stimulus localization in space. In animals with bilateral superior colliculus ablations, acquisition was impaired relative to acquisition in normal animals. In these animals, the extent
J E, Tunkl, M A, Berkley
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AbstractThe rate of acquisition of visual form discriminations in cats with superior colliculus damage was measured in a testing apparatus requiring a minimal amount of stimulus localization in space. In animals with bilateral superior colliculus ablations, acquisition was impaired relative to acquisition in normal animals. In these animals, the extent
J E, Tunkl, M A, Berkley
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Visuovestibular interactions in the cat superior colliculus.
Journal of Neurophysiology, 19741. Single-unit recording has been performed from the superficial layers of the superior colliculus of regionally anesthetized cats. The response of the collicular units to a luminous bar moving in its receptive field has been analyzed as a function of the position of rotation of the animal about its longitudinal axis. 2.
BISTI, SILVIA, Maffei L., Piccolino M.
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The role of the superior colliculus in predatory hunting
Neuroscience, 2010Combining the results of behavioral, neuronal immediate early gene activation, lesion and neuroanatomical experiments, we have presently investigated the role of the superior colliculus (SC) in predatory hunting. First, we have shown that insect hunting is associated with a characteristic large increase in Fos expression in the lateral part of the ...
I C, Furigo +6 more
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Visuotopic organization of the superior colliculus of the opossum
Experimental Brain Research, 1982The representation of the visual field in the upper layers of the opossum's superior colliculus was studied by recording the response of multi-units to visual stimulation. Overall, the visual topography is similar to that of other non-primate mammals.
E, Volchan +2 more
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Development of the commissure of the superior colliculus in the hamster
Journal of Comparative Neurology, 2005AbstractThe development of the corpus callosum (CC) and the anterior commissure (CA) is well known in a wide variety of species. No study, however, has described the development of the commissure of the superior colliculus (CSC) from embryonic state to adulthood in mammals. In this study, by using the lipophylic tracer DiI, we investigated the ontogeny
Daniel-Robert, Chebat +2 more
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Astroglial differentiation in the opossum superior colliculus
Glia, 1989AbstractGlial markers, namely, vimentin, glial fibrillary acidic protein (GFAP), and glycogen, as well as accumulation of axon‐borne horseradish peroxidase (HRP), were used to visualize radial glial cells in the developing opossum superior colliculus (SC) and to follow changes in young astrocytes of the superficial layers.
P C, Barradas +3 more
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Intrinsic processing in the mammalian superior colliculus
Current Opinion in Neurobiology, 2002The mammalian superior colliculus receives visual inputs from the retina and primary visual cortex in its superficial layers and sends descending motor commands from its deeper layers. It is now becoming clear that a connection exists between these layers, but the signal transmission through it is not robust.
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Disparity sensitivity in the superior colliculus of the cat
Brain Research, 2004The present study aims at evaluating the spatial disparity response profiles of binocular cells in the superficial layers of the superior colliculus of the cat using drifting light bars and phase-shifted spatial frequency gratings. Results show that a total of 64% of the cells were sensitive to phase disparities and had large tuning profiles. Similarly,
Daniel, Mimeault +4 more
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Dynamic space codes in the superior colliculus
Current Opinion in Neurobiology, 1991Space coding in the superior colliculus has traditionally been viewed as a static representation by multiple, aligned, sensory and motor maps. Recent evidence has revealed that the maps are dynamic, shaped by sensory experience in developing animals, and by eye and head position signals in adults.
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The commissural projection of the superior colliculus in the cat
Journal of Comparative Neurology, 1977AbstractThe origin, course, and termination of the commissural projection of the superior colliculus were studied using the orthograde autoradiographic tracing method and the retrograde method utilizing horseradish peroxidase.The complementary and mutually confirming sets of data showed that the commissural fibers interconnect a restricted region of ...
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