Wernicke’s Aphasia

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  • Topic: Language, Wernicke's area, Aphasia
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Wernicke’s Area and Speech Production
Wernicke’s Area
Wernicke's area is the region of the brain where spoken language is understood. Neurologist Carl Wernicke is credited with discovering the function of this brain region. The Wernicke's area is located on the temporal lobe on the left side of the brain and is responsible for the comprehension of speech (Broca's area is related to the production of speech). Language development or usage can be seriously impaired by damage to this area of the brain.

Functions of Wernicke’s Area includes:
● Language Comprehension
● Semantic Processing
● Language Recognition
● Language Interpretation
Speech Production
Speech production is the process by which spoken words are selected to be produced, have their phonetics formulated and then finally are articulated by the motor system in the vocal apparatus.
The production of spoken language involves three major levels of processing. The first is the processes of conceptualization in which the intention to create speech links a desired concept to a particular spoken word to be expressed. Here the preverbal intended messages are formulated that specify the concepts to be verbally expressed. This is a competitive process in which an appropriate word is selected among a cohort of candidates.

The second stage is formulation in which the linguistic form required for that word's expression is created. This process involves such processes as the generation of a syntactic frame, and phonological encoding which specifies the phonetic form of the 4

intended utterance. At this stage a lemma is picked that is the abstract form of a word that lacks any information about the sounds in it (and thus before the word can be pronounced). It contains information concerning only meaning and the relation of this word to others in the sentence.

The third stage is articulation which involves the retrieval of the particular motor phonetics of a word and the motor coordination of appropriate...
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