The auditory association cortex surrounds the primary auditory cortex on the superior temporal gyrus, including the planum temporale and much of Brodmann area 22. It interprets complex sounds such as speech, music and environmental noises. In the dominant hemisphere, its posterior part forms Wernicke area.
| Location | Superior temporal gyrus around the transverse temporal gyri, including the planum temporale |
|---|---|
| Parts |
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| Connections |
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| Blood Supply | Middle cerebral artery (inferior division) |
Interprets complex sounds, recognising speech, voices, music and environmental sounds.
Dominant hemisphere damage causes problems understanding speech (receptive aphasia or pure word deafness), while non-dominant damage can impair recognition of music, melody and tone of voice (amusia and receptive aprosodia). Abnormal activity here is linked to auditory verbal hallucinations in schizophrenia.
Inability to understand spoken words with preserved hearing of other sounds and normal reading.
Loss of the ability to recognise or enjoy music after non-dominant temporal damage.
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