Adenosine concentrations

A. rise during the day and drop off during the night.
B. rise during the night and drop off during the day.
C. remain stable throughout most of the day and night but spike briefly at dawn.
D. rise during wakefulness and REM but drop during NREM.


Answer: A

Psychology

You might also like to view...

The ethical principle of _____ means that research participants are given enough information about a study to make a reasonable decision about whether or not to participate.

A) freedom from coercion B) informed consent C) debriefing D) protection from harm

Psychology

Which of these infantile measures is known to identify neurological disorders or signs of mental retardation?

a. Circular reactions that are oval in shape b. Low DQ score on the Bayley Scales c. Low IQ score on the Stanford-Binet d. Low IQ score on the WISC-IV-R

Psychology

Which of the following are behavior characteristics that have been observed in children who were, as adults, diagnosed with a personality disorder?

a. athleticism and popularity b. a history of learning disability c. disturbed conduct and immaturity d. divorced parents

Psychology

According to Freud, a generalized anxiety disorder is MOST likely to result when:

A) a person does not dream, and thus has no outlet for anxiety. B) defense mechanisms are too weak to cope with anxiety. C) a person never has a chance to experience trauma. D) defense mechanisms are too strong.

Psychology