Compared with the myelin found on small diameter axons, the myelin coating axons of large diameter axons
A. is of equal thickness and spacing.
B. has less thickness but equal spacing.
C. has equal thickness, but the nodes of Ranvier are closer together.
D. is thicker, and the nodes of Ranvier are farther apart.
Answer: D
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In the study by Caspi et al. (2003) discussed in the text, genetic testing of males who were followed from childhood into adulthood revealed that individuals with a genetic vulnerability in the serotonin transporter gene (the s/s genotype) were __________.
A. more likely than individuals without such a vulnerability (the l/l genotype) to be depressed as adults, regardless of the level of maltreatment in childhood B. more likely than individuals without such a vulnerability (the l/l genotype) to be depressed as adults, but only when child maltreatment was likely to have occurred C. equally likely to be depressed in adulthood as individuals without such a vulnerability (the l/l genotype) when both had a history of severe maltreatment D. depressed from childhood through adulthood
The term "emerging adulthood" is similar to Erikson's use of the term
a. identity diffusion. b. identity commitment. c. moratorium. d. identity achievement.
A researcher may choose to compare situations as a(n) ______ that allows one to compare behavior in different conditions for the same person.
A. between-groups variable B. within-groups variable C. between-subjects variable D. within-subjects variable
Gradually approaching a feared stimulus while maintaining relaxation describes the therapy technique known as
a. aversive conditioning. b. systematic desensitization. c. confrontation. d. transference.