The disproportionate cortical representation in the primary motor cortex of the fingers and mouth is due to the fact that

a. the hands and mouth take more innervation to move.
b. are less sensitive than other areas of the body.
c. are more sensitive than other areas of the body.
d. require greater precision of movement.
e. require less precision of movement.


Answer: d. require greater precision of movement.

Psychology

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Single photon emission computer tomography (SPECT) is a type of functional imaging technique

a. True b. False Indicate whether the statement is true or false

Psychology

Researchers measured children's fear of unfamiliar situations at 21 months and again at four years of age. When the children were brought back to the laboratory at five and a half years, the researchers found

A. that children who were inhibited earlier displayed more risky behavior when playing a ball-tossing game. B. that children who were inhibited earlier displayed more risky behavior when playing on a mattress in a falling game. C. that children who were inhibited at 21 months and four years again clung to their mother or father as before. D. that children who were uninhibited at 21 months and four years began to cling to their mother or father at five and a half years.

Psychology

Many investigators define personality as the scientific study of individual differences

Indicate whether the statement is true or false

Psychology

The best choice to test divergent thinking would be to

A. measure the time it took a subject to solve a series of complex mathematical problems. B. measure a subject's reaction time in response to a subtle auditory stimulus. C. ask a subject to solve a series of analogies. D. ask a subject to describe what would happen if all modern transportation methods were suddenly unavailable.

Psychology