Invisible displacement understanding in domestic dogs (<Emphasis Type="Italic">Canis familiaris</Emphasis>): the role of visual cues in search behavior |
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Authors: | Sylvain Fiset Valérie LeBlanc |
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Institution: | (1) Secteur Sciences Humaines, Université de Moncton, Campus d’Edmundston, Edmundston, New-Brunswick, E3V 2S8, Canada;(2) école de psychologie, Pavillon Félix-Antoine-Savard, Université Laval, Laval, Québec, G1K 7P4, Canada |
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Abstract: | Recently, (Collier-Baker E, Davis JM, Suddendorf T (2004) J Comp Psychol 118:421–433) suggested that domestic dogs do not
understand invisible displacements. In the present study, we further investigated the hypothesis that the search behavior
of domestic dogs in invisible displacements is guided by various visual cues inherent to the task rather than by mental representation
of an object’s past trajectory. Specifically, we examined the role of the experimenter as a function of the final position
of the displacement device in the search behavior of domestic dogs. Visible and invisible displacement problems were administered
to dogs (N = 11) under two conditions. In the Visible-experimenter condition, the experimenter was visible whereas in the Concealed-experimenter
condition, the experimenter was visibly occluded behind a large rigid barrier. Our data supported the conclusion that dogs
do not understand invisible displacements but primarily search as a function of the final position of the displacement device
and, to a lesser extent, the position of the experimenter. |
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Keywords: | Object permanence Experimenter cues Invisible displacements Visible displacement Search behavior Domestic dogs Visual cues |
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