NSC Chapter 16 questions with correct answers

NSC Chapter 16cerebral commissures - correct answer connect the two halves of the brain lateralization of function - correct answer the unequal representation of various psychological functions in the two hemispheres of the brain split brain patients - correct answer corpus collosum is severed, two hemispheres of the brain don't communicate as effectively commissurotomy - correct answer Surgical severing of the cerebral commissures aphasia - correct answer impairment of language, usually caused by left hemisphere damage either to Broca's area (impairing speaking) or to Wernicke's area (impairing understanding). Broca's area - correct answer controls language expression - an area, usually in the left frontal lobe, that directs the muscle movements involved in speech. Apraxia - correct answer impaired ability to carry out motor activities despite intact motor function -bilateral theory of cerebral dominance - correct answer one hemisphere is more dominant than the other minor one sodium amytal test - correct answer a test involving the anesthetization of first one cerebral hemisphere and then the other to determine which hemisphere plays the dominant role in language dichotic listening test - correct answer a test of language lateralization in which two different sequences of three spoken digits are presented simultaneously, one to each ear, and the subject is asked to report all of the digits heard