Hammond likes his daily routine that involves eating the sam…

Hammond likes his daily routine that involves eating the same breakfast while reading the newspaper, and taking the same route to work. Every year he vacations at his favorite beach resort. Which of the Big 5 factors of personality would Wayne likely score low in?

Hans Eysenck suggested that two traits are the most importan…

Hans Eysenck suggested that two traits are the most important traits of the Five-Factor Model. More recently, Jeffrey Gray has suggested that these two traits are important because they are related to fundamental reward and avoidance systems in the brain. Which two traits of the Five-Factor Model are Eysenck and Gray referring to, and how do they map onto the reward and avoidance systems?