superior colliculus

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an essential visual center between the retina and the striate cortex

References in periodicals archive ?
The superficial deltoid, originating from the anterior colliculus, has three main components.
The major midbrain structure that is targeted by ipsilateral temporal RGC axons and contralateral nasal RGC axons is the superior colliculus (Fig 2).
A widely distributed circuitry supports the inhibition of response in all ages, but specific regions of the brain, such as the frontal and parietal cortices and superior colliculus, become highly involved and collaborate in preparing a response as people become adults, Dr.
He and Spitzer focused on a portion of the brain called the inferior colliculus, which is part of the area responsible for spatial perception.
Budipine is a low affinity, N-methyl-D-aspartate receptor antagonist: Patch clamp studies in cultured striatal, hippocampal, cortical and superior colliculus neurones.
Shook, "Sparing of the Visual Field Is Associated with Less Metabolic Depression in the Superior Colliculus of Neonatal versus Adult Hemispherectomized Cats," Society for Neuroscience Abstracts 13 (1987), 1692; Patricia S.
Topics covered include: ocular motor periphery; brainstem and superior colliculus control mechanisms; cerebellar control mechanisms; basal ganglia and cerebral hemisphere control mechanisms; and nystagmus and multiple sclerosis.
We want to understand how these decisions are formed in the brain, and how information is processed along the hierarchy of visual areas and in superior colliculus (SC), a motor structure of the midbrain.
Central auditory aging: GABA changes in the inferior colliculus.
12,13) Structure Affects of AD Eye Lens [beta]-amyloid is present in lens fibres Aqueous Humour [beta]-amyloid is present Optic Nerve Nerve degeneration Retina Ganglion cell loss [beta]-amyloid deposition Reduction in thickness of RNFL Sub-cortical Visual Centres Lateral [beta]-amyloid plaques Geniculate Nucleus (LGN) Pulvinar [beta]-amyloid plaques Superior [beta]-amyloid plaques Colliculus & Neurofibrillary Tangles (NFT)
London, December 25 (ANI): A new study has shown that the superior colliculus, a brain structure which helps control eye and head movements, is linked to people's attention to their surroundings.
The posterior system, localised to the superior parietal cortex, the superior colliculus and the pulvinar, orientates to and engages with novel stimuli.
Specifically, less PrPres was deposited in the posterior colliculus (region 2) in Syrian hamsters inoculated with brain homogenate from Chinese hamsters, and more PrPres was deposited in the thalamus (region 6) of Syrian hamsters inoculated with brain homogenate from Djungarian hamsters (Figure 6, panel A).
3) Cell loss of the cochlear nuclei, especially in the ventral nuclei, has also been observed in these patients, as have minor changes in the olive, the superior olivary complex, and the inferior colliculus.
For instance, Stein and his coworkers have demonstrated that tactile and visual information converge from different directions on the superior colliculus, a midbrain region packed with multisensory cells.