In the Brown-Peterson test, subjects read a trigram (an unpronounceable series of three letters), and are then asked to count backwards by threes from a given number. What is the purpose of having the subjects count backward?
A) To test if the subject can multitask.
B) To test if they can remember how to subtract.
C) To interfere with the subject's ability to rehearse the trigram.
D) To determine if numerical and phonetic memories are stored in different areas of the brain.
Answer: C
Rationale: In the Brown-Peterson test, subjects are asked to count backwards from a given number so that they cannot repeat the trigram they are trying to remember to themselves.
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