The timing of secretion of the hormone ________ is a gauge of when the brain is ready for sleep.

A. serotonin
B. melatonin
C. leptin
D. estrogen


Answer: B

Psychology

You might also like to view...

Which factor has NOT been used to explain the Flynn effect?

a. Better nutrition b. Smaller family size c. Better education d. Smaller gene pools

Psychology

The cognitive organization that helps us think about the self and process self-relevant information is ____

a. ?a self-schema b. ?a self-concept c. ?self-awareness d. ?self-esteem

Psychology

Joseph received a C? on two algebra exams in a row. The principal’s office automatically sent him a standard, encouraging email intended to boost the self-esteem of any student who does poorly on two assignments in a row in any subject. According to a research study described in the text, what is the most likely consequence of the email?

a. ?Joseph will do somewhat better on his next algebra exam. b. ?Joseph will do about the same on his next algebra exam. c. ?Joseph will do worse on his next algebra exam. d. ?Joseph will do significantly better on his next algebra exam.

Psychology

Clark's nutcrackers apparently recall the location of something like _________ food caches

a. 100 b. 1,000 c. 2,000 d. 20,000

Psychology