Brain Dysfunctions Aphasia When either the Broca s and Wernickes area are damaged Aphasia is a disturbance of the comprehension and expression of language caused by dysfunction in the brain his class of language disorder ranges from having difficulty remembering words to losing the ability to speak read or write This also affects visual language such as sign language aphasia is usually caused by brain damage most commonly caused by stroke Brain damage linked to aphasia can also be caused by other brain diseases including cancer epilepsy and Alzheimer s disease 3 Acute aphasia disorders usually develop quickly as a result of head injury or stroke and progressive forms of aphasia develop slowly from a brain tumor infection or dementia Greater localization of brain function in one hemisphere Lateralization Greater localization of brain function in one hemisphere Hemispheric lateralization Split brain studies Of relating to or subjected to surgical separation of the hemispheres of the brain by severing the corpus callosum split brain operation to prevent epileptic seizures split brain adj having involving or pertaining to a separation of the cerebral hemispheres by severing the corpus callosum Cutting the top front part of your brain example Cutting corpus callosum results in prosopagnosia where you cannot recognize faces Constructional apraxia Someone cannot do something they had used to be able to do Hemispatial neglect If right side gets a stroke you cannot pay attention you finish half a drawing etc
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