Gelman, S. A., & Davidson, N. S. (2016). Young children’s preference for unique owned objects. Cognition. https://doi.org/10.1016/j.cognition.2016.06.016

This is an incredible and profound study on children’s attachment to objects, with implications both for cognitive and emotional development. It’s also a study that amazes me for the amount of work it required from researchers (who had to find brand-new replicas of more than 100 children’s attachment objects).

The experimental design is quite simple. Researchers asked 36 three-year-olds to choose between two toys for either themselves or the researcher: an old (visibly used) toy vs. a new (more attractive) toy matched in type and appearance (e.g., old vs brand-new blanket). Focal pairs contrasted an old toy that belonged to the child with a matched new object; control pairs contrasted toys the child had never seen before.

The conclusion of the study is that, by 3 years of age, young children place special value on unique owned objects. Children prefer their original objects to newer, better versions, but only in the case of the focal pairs (with their objects of attachment) and not with the control pairs (objects the child had never seen before). These findings are consistent with the view that possessions are extensions of the self.

In addition, these preferences hold for “sleep” objects (blanket, pillow) and toys representing an animated character (dolls, action figures) but not for inanimate objects (a car, a toy hammer, etc.) Uniqueness is valued for sleep objects and animate toys, but not for inanimate toys. Moreover, in 30 out of 31 cases, attachment objects had a proper name. Ownership, attachment and anthropomorphism (eyes, animated features, soft or furry texture) all combine to enhance children’s preferences for their own objects.

In addition, children seemed to understand that their special objects had value for them only in so far as they share a history with the object. That is, they did not attribute the researcher the same preference for the old (attachement) object. In this sense, they seem to understand the subjective nature of value.

The results are remarkable, among other things, because of the understanding of the abstract ownership relationships, the distinction between appearance and reality and the perspective-taking abilities involved in children’s responses. The authors also emphasize how attuned any child can be to minor features of an object that indicate that it is her unique object and not a substitute.

These findings also offer a different (experimental, cognitive) perspective on the phenomenon of “transitional objects,” first described by Donald Winnicott in the 1950s.

A remarkable study indeed.