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Unformatted text preview: 1 The Lateralized Brain The Lateralized Brain Speech & Language Speech & Language Stroke Stroke “Split “Split-Brain” Research Brain” Research Two cerebral hemispheres are NOT mirrors of each other This figure is over-simplified!! Classic example: Lateralization of speech and language Classic example: Lateralization of speech and language 2 The study of aphasia led to the discovery of the critical brain areas related to language In the late 19 th century, neurologists Paul Broca and Carl Wernicke examined the brains of patients that suffered from two distinct types of language defects Broca Broca discovered patients unable to produce meaningful language had damaged to the left left ventroposterior ventroposterior region of the frontal lobe frontal lobe . Wernicke Wernicke discovered another set of patients unable to comprehend spoken and written language. They had sustained damage to the association cortex association cortex of the left left posterior temporal lobe posterior temporal lobe Right Hemisphere • Creative, “gestalt” (sum is > parts), intuitive, non-verbal. • Visuo-spatial; 2D and 3D form matching. • Both of above contribute to right hemisphere’s ability to recognize a face immediately • Music; “artists”; emotion. • Role in speech/language: Affective (emotional) speech; ability to interpret body language, facial expression, gestures, etc....
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This note was uploaded on 03/19/2012 for the course BIO 2000 taught by Professor Ewr during the Spring '12 term at Alabama.
- Spring '12