The experience of pain and perceptions of intentionality

According to a new story in the Economist, two psychologists, Kurt Gray and Daniel Wegner of Harvard University, have just published a study in  Psychological Science that indicates our perception of pain may be influenced by whether or not we think it was intentionally inflicted.  Like the famous Milgram experiments (blogged about here), Gray and Wegner’s study involved electric shocks.  When subjects thought that their partner (in actuality a confederate) decided to shock them, they rated the shocks are more painful than equivalent shocks that they were told were administered due to impersonal experimental protocol.