Technical Comments

Comment on “Differential Sensitivity to Human Communication in Dogs, Wolves, and Human Infants”

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Science  09 Jul 2010:
Vol. 329, Issue 5988, pp. 142
DOI: 10.1126/science.1184045

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Topál et al. (Reports, 4 September 2009, p. 1269) reported that dogs’ sensitivity to reading and using human signals contributes to the emergence of a spatial perseveration error (the A-not-B error) for locating objects. Here, I argue that the authors’ conclusion was biased by two confounding factors: the use of an atypical A-not-B search task and an inadequate nonsocial condition as a control.

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