As early as 1489, Leonardo Da Vinci was making sketches of the human brain

A researcher finds in a longitudinal study that her subjects are significantly more open to new experiences at age 50 than they were at 30. This change most likely reflects _______

a. a cohort difference b. the classic nature nurture dichotomy c. a developmental change d. attrition

Finding humor in a stressful situation

a. is a counterproductive way of reducing stress. b. ignores the reality of the situation and makes it difficult to combat stress. c. can help to reduce stress by promoting social support. d. is an irrational reaction to a serious situation that requires a rational response.