Which of the Following Principles Underlies the Technique of Functional

question 18

Multiple Choice

Which of the following principles underlies the technique of functional magnetic resonance imaging (fMRI) ?

• A)It rests on the principle that mental activity is associated with changes in glucose levels in the brain.
• B)It rests on the principle that mental activity is associated with changes in the oxygenated blood levels in the brain.
• C)It rests on the principle that mental activity is associated with changes in hydrogenated blood levels in the brain.
• D)It rests on the principle that mental activity is associated with changes in magnetic fields in the brain.

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Definitions:

Ekman

Refers to Paul Ekman, a psychologist known for his work on the classification of human emotions and their expression through facial gestures.

Behavioral Arousal

The process of becoming alert or energized in response to stimuli, which can influence behavior.

Cortical Arousal

The state of being awake and responsive to stimuli, involving the brain's cerebral cortex and associated with higher brain functions such as cognition and perception.

Autonomic Arousal

The activation of the autonomic nervous system, leading to physiological changes such as increased heart rate or sweating.