People who suffer from attention-deficit/hyperactivity disorder (ADHD) tend to have unusually low levels of ________.
A. dopamine
B. norepinephrine
C. epinephrine
D. gamma-aminobutyric acid
Answer: B
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Which of the following is TRUE about in utero exposure to marijuana?
a. It may impair brain systems that regulate emotional behavior. b. It can predispose the offspring to dependence on hallucinogens. c. It may enhance the child's capacity to conform to social rules and norms. d. It can lead to devastating withdrawal symptoms that occur shortly after birth.
Which of the following is NOT one of John Stuart Mill's requirements for establishing a causal relation between two variables?
A) temporal sequence B) eliminating confounds C) covariation D) external validity
Which of the following is a legitimate hypothesis that explains why the rate of depression appears to be twice as high for women as compared to men across various cultures?
a) Women seek treatment more often than men. b) Women appear to have excessive amounts of the neurotransmitter that plays a key role in depression. c) The increased divorce rate has been more traumatic to how women view themselves and their purpose in life. d) The different social roles played by women predispose them to depression.
The most important factor in speeding action potential on its way is the fatty, white coating wrapped around most axons. This is called the _____
a) node of Ranvier. b) myelin sheath. c) synaptic fluid. d) sclerotic coating.