Arthur has been driving for almost ten hours straight, and he is tired and drowsy. He momentarily falls asleep for a few seconds. Arthur has experienced a(n)

Studies using magnetic resonance imaging (MRI) have found diminished size of structures in the limbic systems of schizophrenics' brains. Why is this finding potentially important?

a. The limbic system integrates cognition and emotion. b. The limbic system coordinates eye tracking and visual perception. c. The limbic system is the seat of consciousness and sense of identity. d. Abstract reasoning and problem solving are organized in the limbic system.

Research has shown that prosocial behavior improves from childhood into mid-adolescence, but only when:

A) studies are naturalistic observations rather than lab studies. B) the target of concern is a child rather than an adult. C) the behaviors have to do with helping or comforting others rather than sharing. D) all of the above