Which of the following is an accurate statement about dopamine?
A. It has an excitatory effect on the brain.
B. It enhances the effects of the cortex on lower brain structures.
C. It increases in the synapse when cocaine blocks its reuptake.
D. It is probably not involved in the stimulant effects of cocaine.
Answer: C
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Freud proposed that people have a life-giving instinct as well as a "death instinct." He called the latter ____
a. Jocasta b. Eros c. Oedipus d. Thanatos
If you remember that "dinero" is money by visualizing yourself buying a Mexican dinner with dinero, you are using
a. a mnemonic. b. an eidetic image. c. semantic priming. d. an icon.
The net effect of each cycle of the sodium-potassium pump is to ____.
A. decrease the number of positively charged ions within the cell B. increase the number of positively charged ions within the cell C. decrease the number of positively charged ions outside the cell D. increase the number of negatively charged ions within the cell
In the majority of cases, the cause of mental retardation is ______
a. clearly identified genetic abnormalities b. unknown c. poor prenatal nutrition d. prenatal drug abuse by the mother