In order to establish that the dichotic listening test is a valid test of language lateralization,Kimura showed that
A) patients shown to be right-hemisphere dominant for speech by the sodium amytal test display a left-ear superiority for the recall of dichotically presented digits.
B) most people display a right ear superiority for the recall of dichotically presented melodies.
C) only left-handers display a left-ear superiority for the recall of dichotically presented digits.
D) all of the above
E) both A and B

Question

Quizplus · Accepted Answer

Kimura's experiment showed that patients who were found to be right-hemisphere dominant for speech through the sodium amytal test displayed a left-ear superiority for the recall of dichotically presented digits. This suggests that the dichotic listening test is a valid test of language lateralization, as it accurately identifies language dominance within the brain. Option B is incorrect as it pertains to the lateralization of melodies, not language. Option C is incorrect as left-ear superiority has been observed in both left- and right-handers. Option D is incorrect as only option A is true.

In Order to Establish That the Dichotic Listening Test Is