The cells that produce myelin in the peripheral nervous system are called:

Rachel is completely exhausted after a long day's work. She comes home and makes herself a drink and finds it soothing after a tiring day. Rachel is unlikely to become addicted to alcohol because:

a. she is drinking to relax herself after a rough day at work. b. she is drinking to suppress her anxieties. c. she is drinking to drown her worries and sorrows. d. she is drinking to abandon inhibitions.

One night several years ago Barbara was raped at knife point on her way home from the library. Ever since, she has been afraid of the dark, of men similar to the rapist, and of knives

What concept would a behavioral psychologist find most helpful in explaining her current avoidance of these stimuli? a) social learning theory b) classical conditioning c) positive reinforcement d) systematic desensitization