Why do psychoactive drugs make people feel good?

A. They increase dopamine levels in the brain's reward pathways.
B. They decrease dopamine levels in the brain's reward pathways.
C. They increase epinephrine in the brain's reward pathways.
D. They decrease epinephrine in the brain's reward pathways.


Answer: A

Psychology

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A researcher notices that there is a relationship between stress and sleep such that as stress increases, sleep decreases, but the researcher doesn't know if lack of sleep causes more stress or if higher stress levels cause people to sleep less. The relationship the researcher identified can best be described as a _____.

a. deterministic law b. teleological law c. causal law d. correlational law

Psychology

To prevent ethical violations, most institutions that sponsor research, such as universities and research institutes, require a proposal for research to be approved by a(n) __________.

A. Ethical Standard Board B. Institutional Review Board C. Department of Research D. University Research Sponsorship Department

Psychology

After mitosis, the genetic code is identical in new cells unless__________occur through radiation or other environmental influences.

A. reductions B. expulsions C. conceptions D. mutations

Psychology

Gerard has had unprotected sex with multiple partners in the past 4 weeks. He notices a red chancre on his penis. After a few weeks, he develops rashes all over his body including his palms and soles, followed by fever, muscle aches, and fatigue. Which of the following sexually transmitted diseases is Gerard suffering from?

A. chlamydia B. urethritis C. syphilis D. gonorrhea

Psychology