Adolescents employ propositional thought during the formal operational stage

One explanation for lithium's effectiveness is that it acts directly on the brain's:

A)second messenger system B)serotonin system. C)hippocampus. D)caudate nucleus.

According to the discussion of prospective and retrospective memory,

a. distinctive encoding improves performance on both kinds of memory tasks. b. the research on retrospective memory is typically higher in ecological validity than is the research on prospective memory. c. a delay period has a stronger effect on retrospective memory than on prospective memory. d. retrospective-memory tasks typically activate the frontal lobe of the brain, but prospective-memory tasks do not.