The amino acid tryptophan is the precursor to which neurotransmitter?
a. dopamine
b. endorphin
c. serotonin
d. nitric oxide
c
You might also like to view...
Which statement about violence is most accurate?
a. Violent people tend to have narcissistic personality traits. b. Worldwide, violence has substantially increased over time. c. Exposure to violent media tends to increase violence. d. Most violent crimes are premeditated.
Tuyet-Hoa hears voices in her head. These voices often tell her that she is a bad person and does not deserve to live. Tuyet-Hoa is experiencing ____
a. auditory hallucinations c. nihilistic delusions b. somatic hallucinations d. thought insertion
Assuming large between subject variability, which of the following tests is usually the most sensitive (N held constant)?
a. t test for correlated groups c. t test for independent groups b. sign test d. they are all equal in sensitivity
In industrialized nations, age of menarche __________ per decade from 1900 to 1970
A) increased by about 1 to 2 months B) increased by about 3 to 4 months C) declined by about 3 to 4 months D) declined by about 5 to 6 months