Which of the following did Charles Czeisler find could reset the circadian rhythm of a night worker?
A. exposure to bright light
B. removing all clocks from the workplace
C. injecting high doses of melatonin
D. electroencephalogram tracing
Answer: A
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In Exercise 29 you compared to the effects of extinction in two difference conditions: one in which a mild electric shock was administered following the first response in extinction versus one in which no shock was administered during extinction. In terms of the number of responses required to meet the extinction criterion, you likely found that the number of responses was
a. much larger when the shock occurred. b. much smaller when the shock occurred. c. about the same under the two conditions. d. a poor measure of the difference between the two conditions, as Sniffy never responded after the shock was delivered.
The F-ratio is a ratio of _____ variance over _____ variance
a. between-groups; within-groups b. within-groups; between-groups c. total; between-groups d. total; within-groups
Which example illustrates telegraphic speech?
A) over the river and through the woods B) go up and down C) daddy drives car D) turn left and then right
Carrie was getting less sleep during midterms, so she began drinking one cup of coffee in the morning to feel more alert. By the end of the semester, Carrie was drinking three cups of coffee each morning to get the same sense of alertness. What has happened to Carrie?
A. Her nervous system has likely compensated to her prior coffee consumption by reducing sensitivity of receptors for caffeine. B. She is experiencing withdrawal when she drinks coffee. C. Coffee is no longer an agonist for her. D. Coffee is no longer an antagonist for her.