CSD 146 Exam 4 PSU Questions And Answers Already Graded A+

Broca's area - posterior portion of left frontal lobe that is responsible for language expression Wernicke's area - located on left temporal lobe that is responsible for language comprehension arcuate fasciculus - an arched band of white fibers that is a bridge between sections of grey matter; connects Wernicke's area and Broca's area what is a stroke? - disrupts the blood that circulates to the brain types of strokes - ischemic and hemorrhagic ischemic stroke - when the blood supply to the brain is occluded (blocked) can be either a thrombosis (stationary) or embolism (traveling) hemorrhagic stroke - when arteries rupture and blood enters the brain uncontrollable risks factors of stroke - age (increases with age) gender (males more likely than females) racial/ethnic background (African Americans twice as likely as Anglo Americans) modifiable risk factors of stroke - hypertension, diabetes, tobacco smoking, alcohol use what is aphasia? - describes language disorders following brain injury what causes aphasia? - strokes what does aphasia affect? - production, comprehension, and repetitioncommon symptoms of aphasia - agrammatism, word-finding problems, paraphasia, jargon, and neologisms Broca's aphasia - location: broca's area within the frontal lobe production: slow, telegraphic speech comprehension: mild to moderate difficulties repetition: ability to repeat words and phrases varies transcortical motor aphasia - location: prefrontal cortex production: slow, telegraphic speech comprehension: mild to moderate difficulties repetition: strong skills global aphasia - location: multiple areas of the brain production: severely impaired comprehension: severely impaired repetition: severely impaired