Abstract
Dogs were tested for object permanence using an invisible displacement in which an object was hidden in one of two containers at either end of a beam and the beam was rotated. Consistent with earlier research, when the beam was rotated 180°, the dogs failed to find the object. However, when the beam was rotated only 90°, they were successful. Furthermore, when the dogs were led either 90° or 180° around the apparatus, they were also successful. In a control condition, when the dogs could not see the direction of the 90° rotation, they failed to find the object. The results suggest that the 180° rotation may produce an interfering context that can be reduced by rotating the apparatus only 90° or by changing the dogs' perspective. Once the conflict is eliminated, dogs show evidence of object permanence that includes invisibly displaced objects.
| Original language | English |
|---|---|
| Pages (from-to) | 150-155 |
| Number of pages | 6 |
| Journal | Psychonomic Bulletin and Review |
| Volume | 16 |
| Issue number | 1 |
| DOIs | |
| State | Published - Feb 2009 |
Bibliographical note
Funding Information:Preparation of this article was supported by National Institute of Mental Health Grant MH-063726 to T.R.Z.
ASJC Scopus subject areas
- Experimental and Cognitive Psychology
- Developmental and Educational Psychology
- Arts and Humanities (miscellaneous)