What is the function of the medial geniculate nucleus?
The medial geniculate body is the major auditory nucleus of the thalamus. Parts of the medial geniculate are hypothesized to function in directing auditory attention.
Which special sense is associated with the medial geniculate nucleus of the thalamus?
The output of the thalamus is the white matter fibre tract known as the optic radiations, which project to the primary visual cortex. The medial geniculate nucleus (MGN) relays auditory information. It receives input from the inferior colliculus as well as from the auditory cortex.
What is the geniculate nucleus?
The lateral geniculate nucleus (LGN; also called the lateral geniculate body or lateral geniculate complex) is a relay center in the thalamus for the visual pathway. It is a small, ovoid, ventral projection of the thalamus where the thalamus connects with the optic nerve.
Where is the medial geniculate nucleus?
The medial geniculate nucleus forms a small protuberance on the lower caudal surface of the thalamus between the lateral geniculate body and the pulvinar (Fig. 21.11; see also Fig. 15.10).
Where is the medial geniculate nucleus found?
The medial geniculate nucleus (MGN) or medial geniculate body (MGB) is part of the auditory thalamus and represents the thalamic relay between the inferior colliculus (IC) and the auditory cortex (AC).
What does the claustrum do?
The claustrum acts as a conductor for inputs from the cortical regions so these respective areas do not become unsynchronized. Without the claustrum, one could respond to stimuli that are familiar to the individual but not to complex events.
What is the main function of the thalamus?
The thalamus is a mostly gray matter structure of the diencephalon that has many essential roles in human physiology. The thalamus is composed of different nuclei that each serve a unique role, ranging from relaying sensory and motor signals, as well as regulation of consciousness and alertness.
Where is the medial geniculate nucleus located?
What happens if the LGN is damaged?
In humans and other primates, visual information is transmitted from the retina to a part of the brain called the lateral geniculate nucleus (LGN), before reaching the primary visual cortex (V1). If the V1 is damaged, conscious vision is lost in the area of the visual field that corresponds to the damage.