Abstract：
:The present study describes effects of anticipation and consumption of a palatable reward on comb surface temperature. The purpose was to investigate temperature responses as a potential physiological indicator of positive emotional states in laying hens. A rise in body temperature in response to stimuli predictive of or during exposure to unpleasant events has been interpreted as evidence of emotions in mammals and avians. However, this phenomenon has so far only been studied during anticipation of or exposure to negative events; i.e., emotions of a negative valence. Infrared thermography was used to record potential alterations in comb surface temperature to a conditioned cue signaling a reward (mealworms) and during reward delivery. On average, comb temperature dropped 1.5 °C (95% CI: +/-1.2 °C) after exposure to CS and consumption of reward (p~0.0014) when initial comb temperature was above 30 °C. Such temperature drop indicates a peripheral vasoconstriction and has clear resemblances to emotional fever as seen during negative emotional states. Thus, we propose that a drop in peripheral temperature reflects emotional arousal more than emotional valence. Substantial temperature responses due to diet-induced thermogenesis were found, further emphasizing a cautious interpretation of altered comb temperature in studies of animal welfare.
journal_name
Physiol Behavjournal_title
Physiology & behaviorauthors
Moe RO,Stubsjøen SM,Bohlin J,Flø A,Bakken Mdoi
10.1016/j.physbeh.2012.03.032subject
Has Abstractpub_date
2012-06-25 00:00:00pages
527-33issue
4eissn
0031-9384issn
1873-507Xpii
S0031-9384(12)00137-0journal_volume
106pub_type
杂志文章abstract：:The aim of this work was to study the evolution of rat food choice in relation to their age and metabolic parameters. Eighty Wistar rats were studied from birth to 13 weeks of age. At weaning, six litters were fed on a macronutrient self-selecting diet and four on a standard diet. In self-selecting males, protein inta...
journal_title：Physiology & behavior
pub_type： 杂志文章
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更新日期：2002-05-01 00:00:00
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journal_title：Physiology & behavior
pub_type： 杂志文章
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journal_title：Physiology & behavior
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更新日期：2020-10-01 00:00:00
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journal_title：Physiology & behavior
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journal_title：Physiology & behavior
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journal_title：Physiology & behavior
pub_type： 杂志文章
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journal_title：Physiology & behavior
pub_type： 杂志文章,评审
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更新日期：2016-10-01 00:00:00
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journal_title：Physiology & behavior
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更新日期：2005-04-13 00:00:00
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journal_title：Physiology & behavior
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更新日期：2015-10-15 00:00:00
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journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2011.07.031
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journal_title：Physiology & behavior
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更新日期：2008-09-03 00:00:00
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journal_title：Physiology & behavior
pub_type： 杂志文章
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更新日期：2012-06-25 00:00:00
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journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2015.10.025
更新日期：2016-01-01 00:00:00
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journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2005.04.023
更新日期：2005-07-21 00:00:00
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journal_title：Physiology & behavior
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更新日期：1987-01-01 00:00:00
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journal_title：Physiology & behavior
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更新日期：1982-07-01 00:00:00
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journal_title：Physiology & behavior
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更新日期：2019-03-15 00:00:00
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journal_title：Physiology & behavior
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更新日期：2014-05-10 00:00:00
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journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(88)90285-5
更新日期：1988-01-01 00:00:00
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journal_title：Physiology & behavior
pub_type： 杂志文章
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更新日期：2007-12-05 00:00:00
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journal_title：Physiology & behavior
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更新日期：2017-06-01 00:00:00
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journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(91)90264-o
更新日期：1991-03-01 00:00:00
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journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(93)90384-r
更新日期：1993-06-01 00:00:00
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journal_title：Physiology & behavior
pub_type： 杂志文章
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更新日期：2003-04-01 00:00:00
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journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(86)90352-5
更新日期：1986-01-01 00:00:00
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journal_title：Physiology & behavior
pub_type： 临床试验,杂志文章
doi：10.1016/j.physbeh.2004.03.006
更新日期：2004-06-01 00:00:00
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journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(89)90038-3
更新日期：1989-11-01 00:00:00
