Eighteen-month-olds understand false beliefs in an unexpected-contents task.

Journal Article (Journal Article)

Recent studies suggest that infants understand that others can have false beliefs. However, most of these studies have used looking time measures, and the few that have used behavioral measures are all based on the change-of-location paradigm, leading to claims that infants might use behavioral rules instead of mental state understanding to pass these tests. We investigated infants' false-belief reasoning using a different paradigm. In this unexpected-contents helping task, 18-month-olds were familiarized with boxes for blocks that contained blocks. When an experimenter subsequently reached for a box for blocks that now contained a spoon, infants based their choice of whether to give her a spoon or a block on her true or false belief about which object the block box contained. These results help to demonstrate the flexibility of infants' false-belief understanding.

Full Text

Duke Authors

Cited Authors

  • Buttelmann, D; Over, H; Carpenter, M; Tomasello, M

Published Date

  • March 2014

Published In

Volume / Issue

  • 119 /

Start / End Page

  • 120 - 126

PubMed ID

  • 24267393

Electronic International Standard Serial Number (EISSN)

  • 1096-0457

International Standard Serial Number (ISSN)

  • 0022-0965

Digital Object Identifier (DOI)

  • 10.1016/j.jecp.2013.10.002


  • eng