What word learners do when input contradicts the mutual exclusivity assumption.

Child Dev

Department of Psychology, University of California, Riverside 92521, USA.

Published: December 1996

AI Article Synopsis

  • In four studies, 3- to 5-year-old children heard two new English names for the same object from different adults.
  • Approximately half of the children accepted both names, indicating that presenting two labels can challenge the tendency to assign only one label to an object (known as mutual exclusivity).
  • The other half favored mutual exclusivity, choosing one label while still remembering both for a short time, which helps them make a decision without overloading their memory.

Article Abstract

In 4 studies, 3- to 5-year-olds heard 2 novel English labels each applied to the same novel object by a different adult. In all 4 studies, about half of the children accepted both labels, suggesting that hearing 2 labels applied to an object offers strong enough evidence for some to override mutual exclusivity. Nonetheless, about half of the children honored mutual exclusivity and hence accepted only 1 label; they also seemed to keep both labels in mind for at least a few minutes and settled on whichever label they re-encountered first. This strategy allows children to make an informed choice between 2 apparently equally good labels, without straining their limited memory capacities.

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