Inhibitory Control was needed in Level-1 Visual Perspective Taking: A Developing Negative Priming Study

AIM: Previous studies have found that both children and adults have difficulties in dealing with judgments in which self-perspective differs from other-perspective, even in level-1 perspective-taking. However, the underlying cognitive mechanism of this is still unclear. In the present study, we designed a negative priming (NP) paradigm of the dot-perspective task to examine whether inhibitory control was required to overcome egocentric bias in level-1 visual perspective-taking in children and adults. We observed an NP effect in both children (n= 43) and adults (n= 40). However, there was no significant difference between children and adults on the magnitude of the NP effect, indicating that when children could overcome the egocentric bias, they had inhibitory control ability comparable to that of adults in level-1 other-perspective-taking. BACKGROUND: Visual perspective-taking is an indispensable ability in social interaction; hence, it has attracted great attention from researchers. However, the mechanism underlying this process remains unclear. The present study aimed to investigate the role of inhibitory control in level-1 visual perspective-taking from a developmental perspective in order to understand the performance differences in perspective-taking tasks between children and adults. METHODS: The NP paradigm was applied to the dot-perspective task. Participants’ response times (RTs) and error rates (ERs) were recorded during the experiment. A 2 (trial type: test vs control, within-subject) × 2 (age: children vs adults) mix-design ANOVA was used to analyse the RTs and ERs data separately. RESULTS: We observed an NP effect for both children (7.31, t (42) = 2.78, p < 0.01, Cohen’s d = 0.22) and adults (27.58, t (39) = 2.31, p < 0.05, Cohen’s d = 0.21). However, the difference in the magnitude of the NP effect between children and adults was not significant (t (81) = 0.54, p = 0.59). CONCLUSION: Inhibitory control was needed to overcome egocentric bias in level-1 visual perspective-taking for both children and adults. Moreover, when children could overcome egocentric bias, they had an inhibitory control ability comparable to that of adults.