Corpus: Auditory cortex
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from Latin: audire - to hear, cortex - cortex
Synonyms: Auditory centre, auditory cortex, auditory cortex
English:
Definition[Bearbeiten]
The term auditory cortex refers to an area of the cerebral cortex that is responsible for processing acoustic stimuli. It represents the end of the auditory pathway.
Location[Bearbeiten]
The primary auditory cortex is located in the gyri temporales transversi (Heschl's transverse convolutions) in area 41 according to Brodmann. The secondary auditory cortex surrounds the primary field and comprises area 42. Posterolaterally, the auditory association cortex adjoins.
Sometimes the Wernicke centre (area 22) is also counted as part of the auditory cortex.
Differentiation[Bearbeiten]
In principle, the auditory pathway differentiates between the following stations:
- Organ of Corti (inner hair cells)
- Spiral ganglion
- Nuclei cochleares anterior et posterior
- Nuclei corporis trapezoidei
- Nucleus olivaris superior
- Nucleus lemnisci lateralis
- Nucleus colliculi inferioris
- Nucleus corporis geniculati medialis
and the auditory cortex itself.
See also: Auditory pathway