Question 1: Think about what you have learned about toxins, hormones, and brain chemistry. To what extent do these naturally occurring chemicals alter someone's basic personality? How can that happen?

Question 2: What, if anything, does Darwin's concept of survival of the fittest have to say about the evolution of an individual's personality?

Question 3: Recall what you learned about self-report questionnaires and reports gathered from other when you learned about types of assessments. Watson and other similar theorists rejected introspection as not being sufficiently objective to be scientifically valid. What do you think?

Question 4: Based on your reading about "Let's Make A Deal" experiments with pigeons, could pigeons be smarter than people when the contingencies of reinforcement are more important than reflective thought? What does that tell us about human judgment and decision-making?