"Yeah, he knocked over the lamp, but he didn't mean to, so it wasn't that bad." This statement represents what Piaget called

Research on sleep patterns and depression indicates that individuals with depression:

a. are deep sleepers. b. have decreased stage 1 sleep. c. enter into REM sleep earlier in the night. d. experience the same amount of eye movements as non-depressed individuals.

A brain trauma in which the brain has been shifted from its normal position and is pressed against the skull, often resulting in bruised tissue, coma, or delirium, is referred to as a

a. contusion. b. concussion. c. stroke. d. laceration.