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The brachium of superior colliculus (or superior brachium) is a branch that extends laterally from the superior colliculus, and, passing to the thalamus between the pulvinar and the medial geniculate nuclei, is partly continued into an eminence called the lateral geniculate nucleus, and partly into the optic tract. [citation needed]
The commissure of superior colliculus, also called the commissure of superior colliculi is a thin white matter structure consisting of myelinated axons of neurons and joining together the paired superior colliculi. [1] It is evolutionarily one of the most ancient interhemispheric connections.
Superior colliculus; C. Commissure of superior colliculus; D. Dazzle reflex This page was last edited on 9 October 2017, at 08:50 (UTC). Text is available under ...
The midbrain tegmentum is the part of the midbrain extending from the substantia nigra to the cerebral aqueduct in a horizontal section of the midbrain. Structures included in the midbrain tegmentum include the red nucleus, reticular formation, and substantia nigra.
Diagram of the midbrain, sectioned at the level of the superior colliculus (Central tegmental tract not labeled, but region is visible.) Axial section of the Brainstem (Pons) at the level of the Facial Colliculus (Central tegmental tract not labeled, but region is visible.)
This small artery supplies portions of the midbrain, [1] especially the superior colliculus, inferior colliculus, and tectum. Structure
The tectopulvinar pathway is a fast-acting pathway that provides the viewer with information on the absolute spatial information of objects. The pathway plays a large role in directing visual spatial attention and is particularly responsive to novel stimuli that appear or move in peripheral vision; however, because it receives mostly magnocellular visual input, the tectopulvinar pathway is not ...
As much as 95% of input in the LGN comes from the visual cortex, superior colliculus, pretectum, thalamic reticular nuclei, and local LGN interneurons. Regions in the brainstem that are not involved in visual perception also project to the LGN, such as the mesencephalic reticular formation, dorsal raphe nucleus, periaqueuctal grey matter, and ...