Deferred imitation and declarative memory in domestic dogs
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This study demonstrates for the first time deferred imitation of novel actions in dogs (Canis familiaris) with retention intervals of 1.5 min and memory of familiar actions with intervals ranging from 0.40 to 10 min. Eight dogs were trained using the ‘Do as I do’ method to match their own behaviour to actions displayed by a human demonstrator. They were then trained to wait for a short interval to elapse before they were allowed to show the previously demonstrated action. The dogs were then tested for memory of the demonstrated behaviour in various conditions, also with the so-called two-action procedure and in a control condition without demonstration. Dogs were typically able to reproduce familiar actions after intervals as long as 10 min, even if distracted by different activities during the retention interval and were able to match their behaviour to the demonstration of a novel action after a delay of 1 min. In the two-action procedure, dogs were typically able to imitate the novel demonstrated behaviour after retention intervals of 1.5 min. The ability to encode and recall an action after a delay implies that facilitative processes cannot exhaustively explain the observed behavioural similarity and that dogs’ imitative abilities are rather based on an enduring mental representation of the demonstration. Furthermore, the ability to imitate a novel action after a delay without previous practice suggests presence of declarative memory in dogs.
KeywordsDeferred imitation Dog Declarative memory Social learning
This study was supported by the Hungarian Scholarship Board by providing a fellowship to C. Fugazza. A.M. also receives funding from MTA-ELTE Comparative Ethology Group (MTA01 031), and the Hungarian Science Foundation (OTKA K81953). We are also grateful to the dog owners of the Good Boy and Happy Dog School who enthusiastically participated in this research with their dogs. We thank L. Marinelli for her comments on the manuscript, C.P. West for proofreading the English of this article and the anonymous reviewers for their valuable suggestions.
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- Bandura A (1969) Social learning theory of identificatory processes. In: Goslin DA (ed) Handbook of socialization theory and research. Rand-McNally, Chicago, pp 213–262Google Scholar
- Byrne RW (1994) The evolution of intelligence. In: Slater PJB, Halliday TR (eds) Behaviour and evolution. Cambridge University Press, Cambridge, pp 223–264Google Scholar
- Carpenter M, Nagell K, Tomasello M (1998b) Social cognition, joint attention, and communicative competence from 9 to 15 months of age. Monogr Soc Res Child 63 (Serial No. 255)Google Scholar
- Dawson BV, Foss BM (1965) Observational learning in budgerigars. Anim Behav 58:151–158Google Scholar
- Galef BJ (1988) Imitation in animals: history, definition, and interpretation of data from the psychological laboratory. In: Zentall TR, Galef BJ (eds) Social learning: psychological and biological perspectives. Erlbaum, Hillsdale, NJ, pp 3–28Google Scholar
- Miklósi Á, Topál J (2013) What does it take to become ‘best friends’? Evolutionary changes in canine social competence. Trends Cogn Sci 17:287–294. http://dx.doi.org/10.1016/j.tics.2013.04.005
- Thorpe WH (1963) Learning and instinct in animals, 2nd edn. Harvard University Press, Cambridge, MAGoogle Scholar
- Van de Waal E, Claidière N, Whiten A (2012) Social learning and spread of alternatives means of opening an artificial fruit in four groups of vervet monkeys. Anim Behav 30:1–6. http://dx.doi.org/10.1016/j.anbehav.2012.10.008
- Wood D (1989) Social interaction as tutoring. In: Bornstein MH, Bruner JS (eds) Interaction in human development. Erlbaum L, Hillsdale, New Jersey, pp 59–80Google Scholar