Any group of people who are viewed as competitors, enemies, or different and unworthy of respect is a(n) ______

The chemical adenosine is most likely to reduce:

a. alertness. b. Stage 4 sleep. c. narcolepsy. d. REM sleep.

In a study comparing women with and without anorexia, differences in brain scans

a. occurred when the women were looking at images of others. b. occurred when the women were looking at self-images. c. did not occur. d. occurred in a random pattern. A predominant percentage of women misperceived images of themselves.