Gregory works overtime every day because of a high-priority project. He is under a significant amount of stress. The stress takes a toll on his health, especially his large intestine, leading to diarrhea. Which of the following is the most likely reason for Gregory's condition?
A. A decrease in glutamate levels
B. A decrease in acetylcholine levels
C. An increase in serotonin levels
D. An increase in gamma-aminobutyric acid levels
Answer: D
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a. inhibition b. attention c. impulsivity d. cognition
How a researcher treats participants is an example of an environmental factor in a research study.
Answer the following statement true (T) or false (F)
If you score at the 50th percentile on an intelligence test, this means that
a. you correctly answered half of the questions on the test. b. you scored significantly below average on this test. c. you scored significantly below average on this test. d. half the people your age who took the test scored higher than you and half scored lower than you.
Which of the following is a characteristic of narcissistic people?
a. They are confident, stable, and secure. b. They are preoccupied with their own needs and feel that they deserve special treatment. c. They have low self-esteem. d. They are more able than others to identify and correct thought distortions.