Results 221 to 230 of about 43,261 (267)
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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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Cholinergic innervation of the superior colliculus in the cat
Journal of Comparative Neurology, 1989AbstractThe superficial and intermediate gray layers of the superior colliculus are heavily innervated by fibers that utilize the neurotransmitter acetylcholine. The distribution, ultrastructure, and sources of the cholinergic innervation of these layers have been examined in the cat by using a combination of immunocytochemical and axonal transport ...
W C, Hall +3 more
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Parabigeminal projections to the superior colliculus in the cat
Brain Research, 1983Small amounts of horseradish peroxidase were injected into the superior colliculus of the cat and the distribution of labeled neurons in the parabigeminal nuclei was mapped. After injections placed dorsal to the stratum opticum in the superior colliculus, the parabigeminal nucleus is the only mesencephalic and/or rhombencephalic structure in which ...
M, Roldán +2 more
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Commissural connections of human superior colliculus
Neuroscience, 2002The superior colliculus of higher mammals is a laminated structure of the midbrain that receives visual input in superficial layers, and visual, auditory and somatosensory input in deep layers. The superior colliculi on either side are interconnected via the intercollicular commissure, which has been proposed to play a role in visual transfer and gaze ...
E, Tardif, S, Clarke
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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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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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Trigeminal projections to the superior colliculus of the rat
Journal of Comparative Neurology, 1981AbstractThe deep layers of the rodent superior colliculus contain a vibrissae‐related organization that is in “spatial register” with the overlying visuotopic organization (Dräger and Hubel, '76). The distribution of vibrissae‐related afferents and their cells of origin were determined with a number of anatomical techniques.
H P, Killackey, R S, Erzurumlu
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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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Superior Colliculus: Visuotopic-Somatotopic Overlap
Science, 1975A laminar organization was present in the superior colliculus of the cat, with upper layer cells exclusively visual, lower layer cells primarily somatic (or acoustic), and intermediate layers showing significant modality overlap. The close topographic correspondence between the visual and somatic representations observed within this laminar pattern and
B E, Stein +2 more
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