________ generates hypotheses that can be tested in research

In Carré and colleagues' (2010) study of the testosterone levels of men who played a competitive computer game, which men showed an increase in testosterone?

A) Men who were provoked and for whom aggression was rewarding. B) Men who were provoked and for whom aggression was costly. C) Men who were unprovoked and for whom aggression was rewarding. D) Men who were unprovoked and for whom aggression was costly. E) Men who chose to help the experimenter rather than play another computer game.

Which of the following is responsible for the ability to selectively attend to certain kinds of information in one's surroundings and become alert to changes?

a) reticular formation b) pons c) medulla d) cerebellum