Bob can't stop tapping his pencil and moving his feet in repetitive manners. This is known as

The structure that serves as a biological clock and controls human circadian rhythms is the:

A. heart with its pacemaker cells. B. pituitary gland. C. pineal gland. D. suprachiasmatic nucleus.

What did researchers find when they replicated David Rosenhan's patient study using people with active symptoms of schizophrenia?

a) Most of the patients were denied treatment. b) The patients were given a placebo and sent on their way. c) Most of the patients were committed and treated under Medicaid provisions. d) The patients were arrested because they were more likely to receive treatment in prison.