Physiological mechanisms for food-hoarding motivation in animals

The study of ingestive behaviour has an extensive history, starting as early as 1918 when Wallace Craig, an animal behaviourist, coined the terms ‘appetitive’ and ‘consummatory’ for the two-part sequence of eating, drinking and sexual behaviours. Since then, most ingestive behaviour research has foc...

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Bibliographic Details
Published in:Philosophical transactions of the Royal Society of London. Series B. Biological sciences 2010-03, Vol.365 (1542), p.961-975
Main Authors: Keen-Rhinehart, Erin, Dailey, Megan J., Bartness, Timothy
Format: Article
Language:English
Subjects:
Adiposity - physiology
Animal feeding behavior
Animal hoarding behavior
Animals
Appetitive Behavior - physiology
Appetitive Behaviour
Behavior, Animal - physiology
Compulsive hoarding
Cricetinae
Energy Balance
Feeding Behavior - physiology
Food
Food availability
Food consumption
Food deprivation
Food Deprivation - physiology
Food Intake
Foraging
Ghrelin - physiology
Hamsters
Hoarding
Ingestive Behaviour
Leptin - physiology
Mesocricetus - physiology
Mesocricetus - psychology
Motivation - physiology
Neuropeptides - physiology
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Summary:The study of ingestive behaviour has an extensive history, starting as early as 1918 when Wallace Craig, an animal behaviourist, coined the terms ‘appetitive’ and ‘consummatory’ for the two-part sequence of eating, drinking and sexual behaviours. Since then, most ingestive behaviour research has focused on the neuroendocrine control of food ingestion (consummatory behaviour). The quantity of food eaten, however, is also influenced by the drive both to acquire and to store food (appetitive behaviour). For example, hamster species have a natural proclivity to hoard food and preferentially alter appetitive ingestive behaviours in response to environmental changes and/or metabolic hormones and neuropeptides, whereas other species would instead primarily increase their food intake. Therefore, with the strong appetitive component to their ingestive behaviour that is relatively separate from their consummatory behaviour, they seem an ideal model for elucidating the neuroendocrine mechanisms underlying the control of food hoarding and foraging. This review focuses on the appetitive side of ingestive behaviour, in particular food hoarding, attempting to integrate what is known about the neuroendocrine mechanisms regulating this relatively poorly studied behaviour. An hypothesis is formed stating that the direction of ‘energy flux’ is a unifying factor for the control of food hoarding.
ISSN:0962-8436
1471-2970
DOI:10.1098/rstb.2009.0225