Wernicke-Geschwind model

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The Wernicke-Geschwind model (after Carl Wernicke and Norman Geschwind ) is a simplified representation of the neural representation of language ability . Language ability depends on the correct function of two areas of the left brain hemisphere . On the one hand from the Broca area , which is responsible for the production of language, on the other hand from the Wernicke area , which represents the area in which language is understood.

If these parts of the brain are damaged by lesions , aphasia occurs . If the Broca area is affected, one speaks of Broca's aphasia . In this case, the ability to understand speech remains largely unaffected, whereas speech production becomes almost impossible. If the Wernicke area is damaged, Wernicke aphasia is present. In this case, speech comprehension is primarily impaired. If the connection ( Fasciculus arcuatus ) between these two parts of the brain is disturbed, this is called conduction aphasia . In this case, both language understanding and language production are intact. The only thing that is severely impaired is the ability to repeat speech, as this requires the transmission of the understood sequences from the Wernicke area via the arcuate fasciculus to the Broca area, which is responsible for speech production .

See also

Individual evidence

  1. Wernicke-Geschwind model. Retrieved August 16, 2019 .