Research indicates that some people's schizophrenia may result from abnormalities in the brain's receptor sites for what neurotransmitter?
A) acetylcholine
B) dopamine
C) GABA
D) epinephrine
Answer: B
Rationale: Research suggests that individuals with schizophrenia have overactive receptors for the neurotransmitter dopamine. The excess dopamine may be involved in producing the positive symptoms of schizophrenia, such as hallucinations and delusions, but not the negative symptoms such as flattened emotion and lack of speech.
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A severe factitious disorder in which a person causes symptoms and claims he has a physical or mental disorder is
a. malingering. b. somatoform. c. Munchhausen syndrome. d. psychosomatic illness.
According to Erikson, the positive resolution of the conflict of old age is:
a. integrity c. intimacy b. generativity d. identity
Garcetti v. Ceballos was a Supreme Court decision which dealt with:
A. the due process rights of detainees at Guantanamo. B. the First Amendment rights of public servants. C. exculpatory evidence. D. witness tampering.
In Rosenthal and Jacobson's (1968) classic study, teachers were told at the beginning of the school year that some of their students were "intellectual bloomers." This study found that
A) those students who were labeled as bloomers had higher IQ scores by the end of the year. B) those students who were not labeled as bloomers had better achievement scores throughout the year. C) teachers' expectations did not influence student performance. D) those students who were labeled as bloomers actually had lower IQ scores by the end of the year.