"People commonly misreport their own experiences. We don’t even have good insight into how much fun we are having or even whether an experience we are having at a particular moment in time is pleasant or unpleasant. Some examples (among many): being paid a paltry sum to tell another person that the boring and repetitive task in which we have just engaged is fun leads us to think we enjoyed it (Festinger & Carlsmith 1959); observing that we have chosen one item from a range that seems identical leads us to conclude that we have detected differences between them (Nisbett & Wilson 1977). Subjects who experienced arousal caused by an injection of norepinepherine reporting being happy or angry, depending on what cues they’re given (Schachter and Singer 1962), while subjects who exercise prior to encountering an opposite sex confederate of the experimenters rated the confederate more attractive (Allen 1989). We are systematically bad at assessing the causes and the precise character of our experiences. Moreover, there is evidence that our intuitive physics is unreliable. Naïve subjects assume, falsely, that an object that is travelling through a curved tube will continue to follow a curved trajectory when it leaves the tube (McCloskey et al. 1980)." [Source: http://agencyandresponsibility.typepad.com/flickers-of-freed...]