Marisol Is Trying a New Treatment for Severe Depression

question 37

Multiple Choice

Marisol is trying a new treatment for severe depression. Brief pulses are sent through her brain. Marisol is undergoing:

• A)functional magnetic resonance imaging (fMRI)
• B)positron emission tomography (PET)
• C)electroencephalography (EEG)
• D)transcranial magnetic stimulation (TMS)

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Definitions:

Receptor Cells

Specialized cells that convert external stimuli into electrical signals for the nervous system to process.

Opponent-process Theory

Opponent-process theory is a psychological and neurological model that describes how the perception of one stimulus (color, emotion, pain) is dependent on the opposite function of its pair.

Ewald Hering

A 19th-century German physiologist who proposed the opponent-process theory of color vision.

Young-Helmholtz Theory

A theory of color vision that proposes the eye detects colors through the relative rates of response by three kinds of cones, each one sensitive to different wavelengths of light.