PET experiments distinguish brain regions associated with a specific cognitive function from regions active during more elementary processing through use of the _____ method.
A) addition
B) subtraction
C) control
D) exclusion

Question

Quizplus · Accepted Answer

PET experiments typically use the subtraction method to distinguish brain regions associated with a specific cognitive function from regions activated during more elementary processing. This method involves subtracting the brain activity measured during a control task (i.e. a baseline or basic cognitive function) from the activity measured during the task of interest. The resulting difference in brain activity is then attributed to the specific cognitive function being studied.

PET Experiments Distinguish Brain Regions Associated with a Specific Cognitive