Studies have shown that exposing people to _____ during their last 4 hours of sleep can help shift workers who experience a sleep-phase delay

According to Frieda Fromm-Reichmann (1948), schizophrenia is caused by:

A) an excess of dopamine. B) a schizophrenogenic mother. C) regression to a stage of primary narcissism. D) brain abnormalities.

How is the preconscious defined?

A) The part of your mind that is immediately aware of your surroundings and your thoughts at any given moment B) The part of your mind that contains repressed impulses, conflict, and painful memories that you want to keep out of awareness C) The twilight zone where at any given moment you are not thinking of something, but you easily could, such as how to brush your teeth or tie your shoes D) None of the above