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11 - Neurobiological sustrates of play behavior: glimpses into the structure and function of mammalian playfulness

Published online by Cambridge University Press:  20 November 2009

Marc Bekoff
Affiliation:
University of Colorado, Boulder
John A. Byers
Affiliation:
University of Idaho
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Summary

Introduction

There is no shortage of descriptive literature on play behavior, nor is there a lack of theories as to the putative functions and evolutionary origins of play. But despite this wealth of information and speculation, very little is known about how the brain is involved in playfulness. We can presume that those animals which play do so because their brains evolved in a way that favored the presence of certain types of neural circuitry, the activation of which results in behaviors that we can readily identify as being playful. Since it is now fairly well established that play is a distinct behavioral entity and not simply the juvenile form of more adult-typical behaviors (e.g., Fagen 1981), it can also be assumed that play would be represented by a distinct neural topography. This is not to say that overlap doesn't exist between brain areas involved in play and brain areas involved in other behaviors. For example, it would be expected that the pleasure derived from engaging in playful interactions taps into neural systems which code pleasure derived from other behaviors. Similarly, those systems which are involved in the actual patterning of movements exhibited during play would not be expected to differ greatly from those involved in motor patterning of other behaviors. The neural uniqueness of play may be in how these individual neural units are combined, and which types of stimuli initiate them.

Play has often been thought of as a distinctly mammalian behavior pattern (e.g., MacLean 1990). Such an assumption would make the search for neural systems involved in play relatively straightforward in that the search could be limited to parts of the brain unique to mammals.

Type
Chapter
Information
Animal Play
Evolutionary, Comparative and Ecological Perspectives
, pp. 221 - 242
Publisher: Cambridge University Press
Print publication year: 1998

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