Zachary Has Been Very Depressed for Several Weeks

question 45

Multiple Choice

Zachary has been very depressed for several weeks.He just started therapy and went to his therapist for the first time yesterday.Today he says that while he is still "a little down," he feels much less depressed than he was.Which pair of factors are most likely to have contributed to his improved mood

• A) placebo effect and regression toward the mean 
• B) regression toward the mean and therapy 
• C) regression toward the mean and spontaneous recovery 
• D) placebo effect and therapy

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Definitions:

Resting Potential

The electrical charge of a neuron when it is not active, reflecting the difference in ion concentration between the inside and outside of the cell.

Electroencephalogram

A test that measures electrical activity in the brain using small, flat metal discs (electrodes) attached to the scalp.

EEG

Electroencephalography, a technique used to record the electrical activity of the brain, useful in diagnosing epilepsy, sleep disorders, and other neurological conditions.

Alan Hodgkin

A British physiologist who, alongside Andrew Huxley, described the ionic mechanisms that underlie the generation of the action potential in neurons.