Organ
Wernicke's area
A historical label within the language network
High-yield
Wernicke aphasia typically combines fluent but error-filled speech with impaired comprehension; awareness of the difficulty varies. The clinical syndrome should not be equated with damage to one sharply defined cortical patch.
Overview
Wernicke's area traditionally refers to dominant posterior superior temporal cortex, with variable inclusion of adjacent parietal regions. Modern evidence assigns language comprehension and production to a broader network. Posterior perisylvian tissue contributes to representing and retrieving speech sounds, while understanding word meaning also recruits other temporal and connected regions.
Reference facts
- Location
- Conventionally posterior superior temporal cortex of the language-dominant hemisphere, near the posterior lateral sulcus; exact boundaries differ between descriptions.
- Parts
- Traditionally posterior area 22, sometimes extended toward supramarginal and angular regions. These landmarks are parts of a larger language system.
- Blood supply
- Predominantly inferior-division MCA branches to the posterior perisylvian region, with individual territorial variation.
- Relations
- Near auditory cortex and connected to frontal and other language regions through several pathways, including arcuate/superior longitudinal connections.
- Function
- Contributes to speech-sound processing and word production within a network that supports spoken and written language; comprehension is distributed beyond this historical area.
Clinical correlation
Conduction aphasia features disproportionately impaired repetition with relatively fluent speech and better comprehension. Injury to arcuate-related pathways can contribute, but cortical lesions and other network disruptions can produce this pattern too.
Frequently asked questions
Where is the wernicke's area located?
Conventionally posterior superior temporal cortex of the language-dominant hemisphere, near the posterior lateral sulcus; exact boundaries differ between descriptions.
What does the wernicke's area do?
Contributes to speech-sound processing and word production within a network that supports spoken and written language; comprehension is distributed beyond this historical area.
What are the parts of the wernicke's area?
Traditionally posterior area 22, sometimes extended toward supramarginal and angular regions. These landmarks are parts of a larger language system.
What is the blood supply of the wernicke's area?
Predominantly inferior-division MCA branches to the posterior perisylvian region, with individual territorial variation.