The inferior colliculus is part of the midbrain that serves as a major auditory (sound) middle for the physique. It acts because the channel for nearly all auditory alerts within the human physique. Its main roles are sign integration, frequency recognition, and pitch discrimination. It additionally processes sensory alerts from the superior colliculi, positioned above it.
The inferior colliculus is made up of two lobes, which course of sound alerts from each ears. It’s sub-divided into the exterior cortex, lateral cortex, and central cortex. It additionally performs the operate of integrating a number of audio alerts that assist to filter out sounds from vocalizing, respiratory, and chewing actions.
This a part of the mind exhibits a relatively larger fee of metabolic exercise than a number of different areas of the mind. Metabolic exercise is the title given to the chemical reactions which are mandatory to take care of life.
A spread of mind stem nuclei — collections of neurons, or grey matter — connect with the inferior colliculus. All of them connect to the core nucleus bilaterally (at each lobes) aside from the lateral lemniscus, a bundle of sensory nerve fibers that comes from the cochlear nucleus of the mind stem. A number of the lateral lemniscus nerves run into the thalamus and the temporal lobe cortex, the place the mixing of cognitive and sensory alerts happens.