The hypothesis that dopamine is involved in schizophrenia is supported by the finding that __________.
A. reserpine depletes monoamine vesicles and makes schizophrenia worse
B. cocaine and amphetamine induce negative schizophrenia symptoms
C. drugs that induce schizophrenic symptoms are dopamine antagonists
D. dopamine antagonists relieve the positive symptoms of schizophrenia
Answer: D
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Research using the diathesis-stress model indicates that
a. genes cannot predispose some people to depression but can influence the extent to which an individual experiences stressful life events. b. genes predispose some people to depression but cannot influence the extent to which an individual experiences stressful life events. c. genes predispose some people to depression and influence the extent to which an individual experiences stressful life events. d. genes cannot predispose people to depression nor influence their experiences to stressful life events.
The presence of a recessive allele can
A. only be expressed when paired with a matching allele. B. influence a genotype but not a phenotype. C. influence the phenotype of female children but not male children. D. influence a phenotype when it occurs in chromosome pairs or on the X chromosome of a male.
According to James Marcia, the status of adolescents who commit to a particular identity following a period of crisis during which they consider various alternatives is known as
a. identity achievement. c. moratorium. b. identity foreclosure. d. identity diffusion.
Aaron, a 22- year-old, was in the midst of accomplishing what Havighurst says is the appropriate developmental task for his stage of life when he
A) volunteered to help coach a neighborhood Little League baseball team. B) became concerned about his rising cholesterol levels and went to see a doctor. C) signed up for a course that promised to teach better problem-solving skills. D) threw a party and invited all the people that had previously invited him.