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Author (up) Collier-Baker, E.; Davis, J.M.; Nielsen, M.; Suddendorf, T. doi  openurl
  Title Do chimpanzees (Pan troglodytes) understand single invisible displacement? Type Journal Article
  Year 2006 Publication Animal Cognition Abbreviated Journal Anim. Cogn.  
  Volume 9 Issue 1 Pages 55-61  
  Keywords Animals; Behavior, Animal; *Cognition; Male; Pan troglodytes/*psychology; *Space Perception; *Spatial Behavior; Task Performance and Analysis; *Visual Perception  
  Abstract Previous research suggests that chimpanzees understand single invisible displacement. However, this Piagetian task may be solvable through the use of simple search strategies rather than through mentally representing the past trajectory of an object. Four control conditions were thus administered to two chimpanzees in order to separate associative search strategies from performance based on mental representation. Strategies involving experimenter cue-use, search at the last or first box visited by the displacement device, and search at boxes adjacent to the displacement device were systematically controlled for. Chimpanzees showed no indications of utilizing these simple strategies, suggesting that their capacity to mentally represent single invisible displacements is comparable to that of 18-24-month-old children.  
  Address Early Cognitive Development Unit, School of Psychology, University of Queensland, Brisbane, Queensland 4072, Australia. e.collier-baker@psy.uq.edu.au  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1435-9448 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:16163481 Approved no  
  Call Number Equine Behaviour @ team @ Serial 2482  
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