In research with human patients suffering from Parkinson's disease, fetal nerve cell transplants ________
a. resulted in only sporadic, temporary improvements in motor control
b. improved motor control for periods of only 1 to 4 years
c. improved motor control for periods of 5 to 10 years
d. resulted in no improvement in motor control
Answer: c
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What tends to happen to people as they age with regard to circadian preference?
A. People's tendency for circadian preference remains unchanged until the late 70's. B. People tend to become more like evening persons after reaching middle adulthood. C. People tend to become more like afternoon persons after reaching middle adulthood. D. People tend to become more like morning persons after reaching middle adulthood.
The neurons in the pleasure centres of the brain, especially those in the nucleus accumbens, secrete _____, a neurotransmitter usually associated with positive emotions.
A) serotonin B) epinephrine C) norepinephrine D) dopamine
A study of Australian students found that teens who reached puberty later had ______ times the rate of self-harm as did other students
2 3 4 5
The study of how we make decisions about the events that we experience is called:
a. attribution theory b. decision making theory c. hypothesis testing d. attribution style hypothesis