In Ader and Cohen's classic study involving the classical conditioning of the immune system, the conditioned stimulus was the ______.
A. organism getting sick
B. sweet water solution
C. drug that suppressed the immune system
D. sterile lab setting
Answer: B
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In terms of personality characteristics, people who are good looking tend to be viewed as
a. sociable, friendly, and warm. b. dominant and perceptive. c. intelligent and nonconforming. d. honest and truthful.
In Thompson's MRI research with twins, high correlations were found in identical twins between cognitive ability and
A. white matter in the frontal and parietal lobes. B. gray matter in the frontal and parietal lobes. C. white matter in the frontal lobe and language areas. D. gray matter in the frontal lobe and language areas.
Research suggests that a person's preference for right- versus left-handedness develops at about what age?
a. prenatally b. at about 1 year of age c. at about 2 ½ years of age d. at about 4 years of age, as the child is learning to draw
The gate-control theory of pain suggests that ________
a) the pain signals must pass through a kind of "gate" located in the spinal cord b) the skin receptors act as a gate for the pain sensation c) the cortex blocks pain unless released by substance P d) the gate is a physical structure that blocks pain signals