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Superior Colliculi Involvement in Poststroke Unilateral Spatial Neglect: A Pilot Study
Topics in Stroke Rehabilitation, 2011The neural mechanisms underlying unilateral spatial neglect (USN) are unclear. The superior colliculi (SC) may be involved in USN expression, and the spatial summation effect (SSE), where reaction times to bilateral stimuli are faster than to unilateral, may be a behavioral index of SC function.
Tatiana, Ogourtsova +4 more
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Archives of Surgery, 1939
The function of the collicular bodies of the quadrigeminal plate in man, and particularly that of the superior (or anterior) colliculi, remains undetermined. Not only has little experimental work been devoted to the problem, but little suitable human material has been available for study.
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The function of the collicular bodies of the quadrigeminal plate in man, and particularly that of the superior (or anterior) colliculi, remains undetermined. Not only has little experimental work been devoted to the problem, but little suitable human material has been available for study.
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Scrapie inoculation of mice: light and electron microscopy of the superior colliculi
Acta Neuropathologica, 1991Ultrastructural examination of the superior colliculi of mice intraocularly inoculated with the ME7 strain of scrapie showed vacuolation early in the course of infection. Brains were examined between 85-260 days after monocular inoculation with scrapie. The mean incubation period for the development of clinical disease was 302 days.
M, Jeffrey, J R, Scott, H, Fraser
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Inferior and Superior Colliculi
1992In the classical neuroanatomical literature, the inferior and superior colliculi, located on the roof of the midbrain, are grouped together as the corpora quadrigemina. However, modern research indicates that these structures have quite different functions.
Douglas L. Oliver, Michael F. Huerta
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Neurogenetic gradients in the superior and inferior colliculi of the rhesus monkey
Journal of Comparative Neurology, 1981AbstractThe spatiotemporal patterns of neurogenesis in the superior colliculus (SC) and inferior colliculus (IC) were analyzed by plotting the positions of heavily labeled neurons in autoradiograms from a series of rhesus monkeys that had been exposed to 3H‐thymidine at various embryonic (E) days and killed either shortly thereafter or at 2–3 months ...
M L, Cooper, P, Rakic
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Effects of ablations of the superior colliculi on spectral sensitivity in monkeys
Neuropsychologia, 1975Abstract Spectral sensitivity of rhesus monkeys was determined before and after the total ablation of the superior colliculi. The hypothesis tested was that photopic spectral sensitivity would not be affected by the colliculectomy whereas the monkeys would loose scotopic sensitivity. This hypothesis was derived from the fact that photopic sensitivity
B, Cardu, M, Ptito, M, Dumont, F, Lepore
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Experimental Neurology, 1981
Abstract The interaction between both superior colliculi through the collicular commissure was studied in cats. Stimulation of the optic tract and superior colliculus elicited a positive potential on the contralateral superior colliculus, recorded between 1.5- and 4.5- or 5.0-mm depth.
MASCETTI, GG, ARRIAGADA, JR
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Abstract The interaction between both superior colliculi through the collicular commissure was studied in cats. Stimulation of the optic tract and superior colliculus elicited a positive potential on the contralateral superior colliculus, recorded between 1.5- and 4.5- or 5.0-mm depth.
MASCETTI, GG, ARRIAGADA, JR
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Contribution of the superior colliculi to post-stroke unilateral spatial neglect and recovery
Neuropsychologia, 2010Unilateral spatial neglect (USN) is a highly prevalent and disabling consequence of stroke that often responds poorly to existing interventions. Its underlying neural mechanisms are still unclear. Recent work suggests that post-stroke USN may be partly related to a disruption of top-down and bottom-up control of visual attention mediated in part ...
Tatiana, Ogourtsova +2 more
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Evidence that superior colliculi are involved in the control of amygdala-kindled seizures
Neuroscience Letters, 1990The effects of bilateral high radiofrequency lesions of superior colliculus (SC) were studied on amygdala kindling. The results demonstrate that a selective destruction of the SC only slightly facilitated the development of kindling. However, the most remarkable effect was the increase of afterdischarge and motor seizure duration observed when SC ...
P, N'Gouemo, G, Rondouin
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Single‐cell responses associated with rhythmic slow‐wave potentials in rat superior colliculi
Journal of Neuroscience Research, 1975AbstractThe present study was designed to investigate the features of rhythmic slow‐wave potentials in the superior colliculi of rats and to study the relationship between these potentials and the activity of single collicular neurons. In contrast to studies in other portions of the visual system, rhythmic slow‐wave potentials in the colliculi fell ...
K V, Anderson, W K, O'Steen
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