Although L-DOPA does have some beneficial effects, it is not a solution to the problem of Parkinson's disease because it
A) typically becomes less and less therapeutically effective with use.
B) is too expensive.
C) can be safely administered to only a small proportion of patients.
D) is unstable at room temperature.
E) does not pass through the blood-brain barrier.
Answer: A
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In what way is the facial expression of fear useful to the person expressing it? a. Raising the skin of the forehead is best for camouflaging from a predator. b. A wide-open mouth is best for detecting a gust of wind
c. Inhaling deeply is best for detecting a dangerous smell. d. Wide-open eyes are best for locating a dangerous object.
A weighted average is
a. the average of two weights. b. an average that gives greater influence to the larger sample. c. an average that reduces the influence of the larger sample. d. the balance between the sample size and the mean.
According to the introduction of the chapter on imagery,
a. people often create mental images, but they seldom use these images in problem solving or other higher mental processes. b. students report that they use visual imagery and auditory imagery equally often. c. psychologists have conducted more research on visual imagery than any other kind of imagery. d. the first psychologists to pay attention to imagery were the radical behaviorists, in the late 1920s.
In signal detection tasks, naysayers will have more correct rejections than yea-sayers
Indicate whether this statement is true or false.