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In most PET and functional MRI studies of cognitive processes,the signal-to-noise ratio is increased by
Motivation
An inferred process within a person or animal that causes movement either toward a goal or away from an unpleasant situation.
Unpleasant Situation
A scenario or event that is disagreeable, uncomfortable, or causes distress to an individual.
Extrinsic Motivation
Motivation driven by external rewards such as money, fame, grades, or praise.
External Rewards
Benefits or incentives provided by an external source, such as money, praise, or recognition, that motivate behavior.
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