To this end, we study the specificity of deficits in social functioning within each of these populations. For instance, we look at whether people with Asperger’s syndrome are equally deficient in empathy and cognitive perspective taking or merely in the latter. In the same population, we pursue the question whether these individuals display a heightened bias towards themselves (e.g. egocentric bias) when making inferences about the emotional states of others. Similarly, we are extending this work to people with strong narcissistic traits to see whether they also display an egocentric bias and whether this is related to the inability to disengage from one’s own current emotional experience to accurately infer that of someone else. In all our investigations the use of game-theoretical paradigms also helps quantifying the degree of deficient social behavior.