Results 141 to 150 of about 5,105 (175)
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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 +2 more
exaly +3 more sources
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 ...
Prosper N’Gouemo, G Rondouin
exaly +3 more sources
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
exaly +3 more sources
Brain Research, 1985
The topographic organization of neurons in the dorsal nucleus of the lateral lemniscus (DNLL) which project to the superior and inferior colliculi was studied using the retrograde horseradish peroxidase (HRP) and the fluorescent double labeling methods.
Katsumi Otani +2 more
exaly +3 more sources
The topographic organization of neurons in the dorsal nucleus of the lateral lemniscus (DNLL) which project to the superior and inferior colliculi was studied using the retrograde horseradish peroxidase (HRP) and the fluorescent double labeling methods.
Katsumi Otani +2 more
exaly +3 more sources
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 ...
Kenneth V Anderson +2 more
exaly +3 more sources
Effect of activation and destruction of the superior colliculi on seizure activity in rats
Bulletin of Experimental Biology and Medicine, 1991A A Shandra +2 more
exaly +2 more sources
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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Organization and origin of the connection from the inferior to the superior colliculi in the rat
Journal of Comparative Neurology, 2006AbstractThe inferior colliculus (IC) is the main ascending auditory relay station prior to the superior colliculus (SC). The morphology and origin of the connection from inferior to superior colliculus (I‐SC) was analyzed both by anterograde and retrograde tracing.
Gontzal, García Del Caño +3 more
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Auditory and visual interactions between the superior and inferior colliculi in the ferret
European Journal of Neuroscience, 2015AbstractThe integration of visual and auditory spatial information is important for building an accurate perception of the external world, but the fundamental mechanisms governing such audiovisual interaction have only partially been resolved. The earliest interface between auditory and visual processing pathways is in the midbrain, where the superior (
Iain, Stitt +5 more
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