In-depth studies of the brain injuries of Phineas Gage and Michael Melnick are examples of

Which of the following changes is related to primary male aging?

a. Erections occur more slowly. b. There is an increase in the length of the refractory period. c. There is an inability to achieve or maintain an erection. d. All of the above changes are related to primary male aging.

Based on research by Markman and colleagues, all of the following are good rules to facilitate successful couple functioning EXCEPT

A) when your partner does a chore, show appreciation rather than pointing out the flaw in the performance. B) try to speak for your partner regarding what he or she will like or dislike. C) if you don't have anything nice to stay, keep quiet. D) when you have an opinion, say it directly rather than trying to get your partner to guess what it is.