According to the activation-synthesis theory of dreaming, the source of a dream is neuronal firing in the ________
a. reticular activating system.
b. cortex.
c. pons.
d. medulla.
Answer: c
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Austin is a very aggressive child who watches a lot of violent programs on television. Research has found a statistically significant, positive correlation between watching television and behaving aggressively. Based on this correlational evidence, which statement is true about Austin's aggression??
a. ?Watching violent programs on television caused Austin to behave aggressively. b. ?Austin has always been aggressive, and so, he prefers to watch violent shows. c. ?If Austin's parents refused to let him watch violent shows, Austin would stop behaving aggressively. d. ?Several factors could be influencing both Austin's aggression and his preference for violent shows.
People living under stressful conditions tend to get sick more often than they would otherwise. How do researchers in psychoneuroimmunology explain this phenomenon?
a) The stress response reduces immune system functioning, thus making us more vulnerable to diseases. b) The stress response in the long run leads to a lowering of the heart rate, which makes the heart inefficient. c) The stress response makes muscles stronger, which places a greater burden on the heart and respiratory systems. d) The body tends to adapt to the constant call for the stress response and, thus, future responses are not as strong as before.
Visual acuity in animals primarily depends on the ________.
A. iris B. lens C. rods D. cones
Being overweight has socioemotional effects that include
A. depression. B. self-injurious behaviors, such as cutting. C. problems in relationships with siblings. D. anxiety.