LING 1P93 Chapter Notes - Chapter 7: Angular Gyrus, Arcuate Fasciculus, White Matter
Document Summary
Ling 1p93 chapter 7 notes: adult language disorders and cognitive- Aphasia: language disorder that is acquired sometime after an individual has developed language competence and results from injury to the language functions of the brain (typically left hemisphere) Most common causes: stroke, meningitis, tumors, poisons, etc. Aphasia: is a disturbance in the language system after language has been established or learned, results from neurological injury to the language-dominant hemisphere of the brain, includes disturbances of receptive or expressive abilities for spoken and written language. 750k suffer strokes yearly in the us; associated health care costs are 60$ billion annually. Ischemic strokes: when blood supply to the brain is inhibited because of an occlusion (blockage) somewhere in an artery; can occur because of: off, stopping blood of an artery and blood flow. Hemorrhagic strokes: when a blood vessel or artery ruptures and excessive amounts of blood enter the brain. Uncontrollable risk factors: age, gender, racial/ethnic background, family history.