[Solved] The Majority of Left-Handed People

Q44:  One of the following has been linked to an increase in left-handedness early in life. A) prenatal exposure to ultrasound B) prenatal exposure to x-rays C) routine childhood immunizations D) diet

Q45:  Sandra has always been good at multitasking. She seems to be able to keep track of several things going on at once. Researchers studying multitasking would likely suggest that Sandra's A) brain function is less lateralized than those who cannot multitask as well. B) brain function is more lateralized than those who cannot multitask as well. C) verbal skills are in her right hemisphere. D) verbal skills are in her left hemisphere.

Q46:  According to research by Springer and Deutsch on handedness, artistic talent, and occupational choice, handedness A) is a strong predictor of occupational choice but not artistic talent. B) is a strong predictor of artistic talent but not occupational choice. C) is a strong predictor of both artistic talent and occupational choice. D) fails to predict either artistic talent or occupational choice.

Q47:  Language function is lateralized to the right hemisphere A) in all right-handed people. B) in 96 percent of right-handed people. C) in a slight majority of right-handed people. D) only rarely in right-handed people.

Q48:  Language function is lateralized to the left hemisphere A) in all left-handed people. B) in 90 to 97 percent of left-handed people. C) in a majority of left-handed people. D) only rarely in left-handed people.

Q50:  Left-handed people A) nearly always lateralize language to the right hemisphere. B) are less likely to lateralize language to the right hemisphere than right-handed people. C) are less likely to use both hemispheres equally for language than right-handed people. D) are more likely to use both hemispheres equally for language than right-handed people.

Q51:  Studies have indicated that the percentage of left-handed individuals in a society is positively correlated with the A) average level of education. B) age distribution. C) tendency to be multilingual. D) homicide rate.

Q52:  Dichotic listening tasks are based on the fact that A) information from each ear is processed exclusively by the ipsilateral auditory cortex. B) information from each ear is processed equally by both hemispheres. C) sounds originating from directly in front of or behind a person will be processed by the left hemisphere. D) information from each ear is processed more rapidly by the contralateral auditory cortex.

Q53:  In dichotic listening tasks, A) most right-handed people will repeat the information heard by the left ear. B) most right-handed people will repeat the information heard by the right ear. C) 50 percent of right-handed people will repeat the information heard by the left ear. D) most left-handed people will repeat the information heard by the left ear.

Q54:  In a dichotic listening test for which he volunteered, Justin was able to repeat the words presented to his right ear, but he did a better job evaluating the emotional tone of a word when it was presented to his left ear. It is most likely that A) Justin is left-handed. B) Justin is right-handed. C) Justin is ambidextrous, showing no preference for one hand over the other. D) no predictions about Justin's handedness can be made without further information.