A light and dark bar are side by side. When you look at the bars, a portion of the light bar looks lighter next to the dark bar and a portion of the dark bar looks darker next to the light bar. This phenomenon is referred to a _____________
a. lateral inhibition c. edge detection
b. ganglion interactions d. Mach bands
Answer: d
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In which of the following ways do psychological and social factors influence health?
a. They can affect basic biological processes resulting in illness and disease. b. Unhealthy lifestyles can increase the risk of developing physical disorders. c. Both of these d. Neither of these
Which of the following is NOT true of people's observations of their own behavior?
a. People are usually realistic and objective. b. People tend to evaluate themselves in a more positive light than they really merit. c. In survey of high school students, 100% of the respondents saw themselves as above average. d. In a survey of high school students, 25% of the respondents thought they belonged in the top 1%.
Suppose that, over the past 100 years, people bought homes at younger ages in successive generations. This pattern resembles a(n)
a. ulnar grasp. b. vitamin deficiency c. catch-up growth. d. secular trend.
Which statement about factors related to adolescent suicide is true?
A. Lesbian, gay, bisexual, and transgender adolescents are at high risk for suicide. B. The largest group at high risk for suicide are withdrawn adolescents who are unable to meet their own standards. C. Adolescents who are highly intelligent but solitary are at especially low risk for suicide. D. Belief in the personal fable is associated with lower suicide risk.