Evidence that the nucleus accumbens is involved in drug addiction comes from reports that
A) animals will self-administer microinjections of addictive drugs directly into the nucleus accumbens.
B) microinjection of addictive drugs into the nucleus accumbens can lead to the development of conditioned place preferences..
C) lesions to the nucleus accumbens reduce the rewarding effects of systemically administered drugs.
D) all of the above
E) both A and C
Answer: D
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A sample of n = 9 college students is used to evaluate the effectiveness of a new Study Skills Workshop. Each student's grade point average (GPA) is recorded for the semester before the workshop and for the semester after the workshop. The average GPA improved by MD = 0.60 points with s2= 0.09 . The researcher would like to use the sample to estimate how much effect the workshop would have for
the entire college population. Which of the following is the 80% confidence interval for these data? a. µD = 0.60 + 0.01(1.397) c. µD = 0.60 + 0.10(1.397) b. µD = 0.60 + 0.09(1.860) d. µD = 0.60 + 0.10(1.860)
Serotonin (5-HT) all are TRUE Except:
A. the supply of L-tryptophan is the rate of limiting step in the synthesis of 5-HT B. low levels of 5-HT have been shown to relate to violent or impulsive behaviour C. 5-HT1A receptors are concentrated in choroids plexus D. LSD is a 5-HT4 agonist E. almost all of the 5-ht in the blood is stored in the red blood cells
Which statement is true regarding male or female reactions to pornography?
A) Men, but very few women, are physiologically aroused by pornography. B) Men tend to rate romantic scenes as more arousing. C) Both women and men are physiologically aroused by pornography. D) Women are more accepting of pornography that is very sexually explicit.
In the experiment conducted by Avicenna on the effect of stress, the wolf present was the ________.
a. independent variable b. confounding variable c. dependent variable d. none of the above