Darnell was accused of a crime and asserts that he is innocent. Familiar with the unreliability of polygraph tests, he asked for a more reliable test. What is likely to be the MOST reliable test of his guilt or innocence?
A. polygraph
B. fMRI
C. CAT scan
D. galvanic skin response

Functional magnetic resonance imaging (fMRi) analysis brain activity by blood flow to in the brain. The part if the brain in use at the moment will get more blood flow. This way, if a particular word or photographs is presented to the suspect, blood flow in a particular region in the brain would indicate whether the word or photograph is familiar to the suspect or not.

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Darnell was accused of a crime and asserts that he is innocent. Familiar with the unreliability of polygraph tests, he asked for a more reliable test. What is likely to be the MOST reliable test of his guilt or innocence? A. polygraph B. fMRI C. CAT scan D. galvanic skin response

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Darnell was accused of a crime and asserts that he is innocent. Familiar with the unreliability of polygraph tests, he asked for a more reliable test. What is likely to be the MOST reliable test of his guilt or innocence?
A. polygraph
B. fMRI
C. CAT scan
D. galvanic skin response