Which of the following is true of smokers who quite smoking?
a. About 70% of smokers successfully quit.
b. People who enroll in a formal smoking cessation program are much more successful than those who try to quit without professional help.
c. Success rates of those who quit using a nicotine substitute are slightly higher than a placebo.
d. Their health risks decline until they reach a normal level after about 5 years.
C
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The two hemispheres of the brain sometimes perform different tasks (lateral dominance). However, information is passed back and forth between hemispheres so that the brain can function as a whole. This interhemispheric communication depends on the
A. association cortex. B. thalamus. C. somatosensory cortex. D. corpus callosum.
In an experiment, a flash of light is paired with a mild electric shock to a subject's finger. After several trials, the subject begins to pull the finger away after seeing the flash of light. The experimenter then begins to present just the flash, but no shock. After several presentations of the flash with no shock, the subject will
A. keep pulling his finger away after seeing the light. B. pull his finger away sometimes but not others. C. gradually cease pulling his finger away after the flash of light. D. pull his finger away more quickly on each trial.
When two events are mutually exclusive then p(A and B) must equal 1.00
Indicate whether the statement is true or false
Characteristics that are shared by most members of a culture are termed
a. cardinal traits. b. ethnic traits. c. general traits. d. common traits.