A Psychologist Is Diagnosing a Patient and Wants to Measure

question 60

Essay

A psychologist is diagnosing a patient and wants to measure the patient's prefrontal brain metabolism levels while the patient is told to concentrate on her obsessions.The psychologist uses fMRI to measure prefrontal brain metabolism levels before,during,and after her patient concentrates on obsessions.She finds that her patient's concentration on obsessions is correlated with increases in prefrontal brain metabolism levels,and she concludes that her patient has obsessive-compulsive disorder.Discuss the grounds on which such a conclusion would be criticized,and describe what else the psychologist might do to diagnose her patient.

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Definitions:

Cumulative Loss

The total amount lost over a period, taking into account all losses incurred during that time.

Rate of Return

The financial return or shortfall from an investment across a defined span, shown as a percentage of the investment's original price.

Rate of Return

The upward or downward movement in an investment's value, measured across a specific interval, and expressed relative to the investment's initial value.

Cumulative Gain

The total amount of gain or profit accumulated over a specific period of time.