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Tytuł pozycji:

The use of infrared thermography to investigate emotions in common marmosets.

Tytuł :
The use of infrared thermography to investigate emotions in common marmosets.
Autorzy :
Ermatinger FA; Department of Anthropology, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland.
Brügger RK; Department of Anthropology, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland. Electronic address: .
Burkart JM; Department of Anthropology, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland.
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Źródło :
Physiology & behavior [Physiol Behav] 2019 Nov 01; Vol. 211, pp. 112672. Date of Electronic Publication: 2019 Sep 02.
Typ publikacji :
Journal Article; Research Support, Non-U.S. Gov't
Język :
English
Imprint Name(s) :
Publication: New York NY : Elsevier Science
Original Publication: Oxford, Eng., Long Island City, Pergamon Press.
MeSH Terms :
Sex Characteristics*
Arousal/*physiology
Body Temperature/*physiology
Emotions/*physiology
Thermography/*methods
Animals ; Callithrix ; Female ; Male ; Skin Physiological Phenomena
Contributed Indexing :
Keywords: Arousal*; Autonomic reaction*; Common marmosets*; Emotions*; Infrared thermography*; Nasal skin temperature*; Piloerection*
Entry Date(s) :
Date Created: 20190906 Date Completed: 20200828 Latest Revision: 20200828
Update Code :
20211105
DOI :
10.1016/j.physbeh.2019.112672
PMID :
31487492
Czasopismo naukowe
Measuring body surface temperature changes with infrared thermography has recently been put forward as a non-invasive alternative measure of physiological correlates of emotional reactions. In particular, the nasal region seems to be highly sensitive to emotional reactions. Several studies suggest that nasal temperature is negatively correlated with the level of arousal in humans and other primates, but some studies provide inconsistent results. Our goal was to establish the use of infrared thermography to quantify emotional reactions in common marmosets (Callithrix jacchus), with a focus on the nasal region. To do so we exposed 17 common marmosets to a set of positive, negative and control stimuli (positive: preferred food, playback of food calls; negative: playback of aggressive vocalizations, teasing; control: no stimulus). We compared nasal temperature before and after the stimuli and expected that highly aroused emotional states would lead to a drop in nasal temperature. To validate the thermography measure, we coded piloerection of the tail as an independent measure of arousal and expected a negative correlation between the two measures. Finally, we coded physical activity to exclude its potential confounding impact on nasal temperature. Our results show that all predictions were met: the animals showed a strong decrease in nasal temperature after the presentation of negative arousing stimuli (teasing, playback of aggressive vocalizations). Furthermore, these changes in nasal temperature were correlated with piloerection of the tail and could not be explained by changes in physical activity. In the positive and the control conditions, we found systematic sex differences: in males, the preferred food, the playbacks of food calls, as well as the control stimulus led to an increase in nasal temperature, whereas in females the temperature remained stable (preferred food, control) or decreased (playback of food calls). Based on naturalistic observations that document higher food motivation and competition among female marmosets, as well as stronger reactions to separation from group members in male marmosets, these sex differences corroborate a negative correlation between arousal and nasal temperature. Overall, our results support that measuring nasal temperature by infrared thermography is a promising method to quantify emotional arousal in common marmosets in a fully non-invasive and highly objective way.
(Copyright © 2019 Elsevier Inc. All rights reserved.)

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