EARLY DECEPTION AND THE CHILDS THEORY OF MIND - FALSE TRAILS AND GENUINE MARKERS

The ability to understand false beliefs is critical to a concept of mind. Chandler, Fritz, and Hala challenge recent claims that this ability emerges only at around 4 years of age. They report that 2‐ and 3‐year‐olds remove true trails and lay false ones to mislead someone about the location of a hidden object. Experiment 1 confirmed that 2‐ and 3‐year‐olds produce apparently deceptive ploys, but they produce them less often than 4‐year‐olds, require prompting, and rarely anticipate their impact on the victim's beliefs or search. In addition, Experiment 2 showed that 3‐year‐olds produce deceptive and informative ploys indiscriminately, whether asked to mislead a competitor or inform a collaborator. By contrast, 4‐year‐olds act selectively. The results support earlier claims that an understanding of false beliefs and deceptive ploys emerges at around 4 years of age. 2‐ and 3‐year‐olds can be led to produce such ploys but show no clear understanding of their effect. Copyright © 1991, Wiley Blackwell. All rights reserved