Definition
Sickness behavior is a coordinated set of adaptive behavioral changes that occur in physically ill animals and humans during the course of infection. These behaviors include lethargy, depressed mood, reduced social exploration, loss of appetite, sleepiness, hyperalgesia, and, at times, confusion. This set of behaviors often accompanies fever and is considered a motivational state responsible for reorganizing an ill individual’s perceptions and actions to enable better coping with infection (Dantzer, O’Connor, Freund, Johnson, & Kelley, 2008).
Description
Sickness behavior is a normal response to infection and is characterized by endocrine, autonomic, and behavioral changes triggered by soluble proteins produced at the site of infection. Activated immune cells, such as macrophages and dendritic cells, release biochemical mediators called pro-inflammatory cytokines, such as interleukin (IL)-1, IL-6, and...
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© 2013 Springer Science+Business Media, New York
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Prather, A.A. (2013). Sickness Behavior. In: Gellman, M.D., Turner, J.R. (eds) Encyclopedia of Behavioral Medicine. Springer, New York, NY. https://doi.org/10.1007/978-1-4419-1005-9_837
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DOI: https://doi.org/10.1007/978-1-4419-1005-9_837
Publisher Name: Springer, New York, NY
Print ISBN: 978-1-4419-1004-2
Online ISBN: 978-1-4419-1005-9
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