David Pizarro's primary research interests are in moral judgment. He's particularly interested in moral intuitions (especially concerning moral responsibility, and the permissibility or impermissibility of certain acts), and in biases that affect moral judgment.
He also has a general interest in the influence of emotional states on thinking and deciding. He's particularly interested in specific emotions (anger, disgust, fear, etc.) and their differential impact on how we process information, how we remember events, and how these emotions impact our moral judgments of others.