Suppose that a person wants to increase their brain levels of serotonin, so they take a pill containing the amino acid tryptophan, which is the precursor for serotonin production
Explain why this may or may not actually change the person's brain levels of serotonin.
What will be an ideal response?
Because of competition among all the amino acids contained in proteins for the active transport systems that allow penetration of the amino acids into the brain, it is unlikely that adding tryptophan will have much influence of serotonin levels in the brain.
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Anxiety is best thought of as ______.
A. current fear B. past memories of fear C. anticipation of some future threat D. irrational
According to Steinberg (2009 ), harsh discipline by parents or government contribute to:
a) Further delinquency in adulthood. b) Decreased delinquency in adulthood. c) Decreased criminal activity in adulthood. d) Complete recovery.
A researcher reports a 95% CI as 2.30 and 2.50. If the null hypothesis were that the mean in the population equals 2.00, then what would have been the decision for a significance test at a .05 level of significance?
A. Retain the null, because 2.00 is not contained in the confidence interval. B. Reject the null, because 2.00 is not contained in the confidence interval. C. Retain the null, because 2.00 is contained in the confidence interval. D. Reject the null, because 2.00 is contained in the confidence interval.
Which of the following was a surprising finding from the work of the Human Genome Project?
What will be an ideal response?