Although other neurotransmitters are present, the brain's reward or "pleasure" system has a predominance of which neurotransmitter?
a. norepinephrine
b. acetylcholine
c. histamine
d. dopamine
D
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A potential work-habit problem created by attention deficit hyperactivity disorder (ADHD) is that the person may
Research shows that sleep deprivation __________
a) has a negative impact on mood but no effect on alertness or performance. b) has a negative impact on alertness but no effect on mood or performance. c) has a negative impact on alertness and mood but no effect on performance. d) has a negative impact on mood, alertness and performance.
Light waves are transmitted across the ________ and enter the eye through the ________.
a. cornea; pupil b. iris; pupil c. lens; retina d. pupil; cornea
In both Asian and ______________________ cultures, a common theme of conceptions of intelligence is that it includes social elements, as well as cognitive elements such as knowledge
a. French b. Italian c. African d. Irish