Children (aged 6-10) and adults (total N = 136) completed a novel visual perspective-taking task that allowed quantitative comparisons across age groups. All age groups found it harder to judge the other person's perspective when it differed from their own. This egocentric interference did not decrease with age, even though, overall, performance…

For more than 30 years, researchers have focused on the important transition that children undergo between the ages of 3 and 5, when they start to solve mind-reading problems that require reasoning about complex mental states, such as beliefs. The main question for debate has been whether, during that transition, children acquire new concepts…

Previous research suggests that perspective-taking and other "theory of mind" processes may be cognitively demanding for adult participants, and may be disrupted by concurrent performance of a secondary task. In the current study, a Level-1 visual perspective task was administered to 32 adults using a dual-task paradigm in which the secondary task…