The right ear but not the left ear temperature is related to stress-induced cortisolaemia in the domestic cat (<i>Felis catus</i>)

Mazzotti, Giovana Adorni; Boere, Vanner

doi:10.1080/13576500802344420

Cited by 32 publications

(25 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A strong directionality was found, especially in lambs, reflecting a dominance of one brain hemisphere over the other in decision-making processes. Previous studies have reported that the right hemisphere has a dominant role in processing responses to acute stress (Tomaz et al 2003;Mazzotti and Boere 2009). Handling and social isolation, both being common farm practices, are known to be a stressful event for gregarious animals such as sheep (Boissy et al 2005).…”

Section: Discussionmentioning

confidence: 99%

Laterality as an indicator of emotional stress in ewes and lambs during a separation test

et al. 2015

View full text Add to dashboard Cite

We assessed motor laterality in sheep to explore species-specific brain hemi-field dominance and how this could be affected by genetic or developmental factors. Further, we investigated whether directionality and strength of laterality could be linked to emotional stress in ewes and their lambs during partial separation. Forty-three ewes and their singleton lambs were scored on the (left/right) direction of turn in a y-maze to rejoin a conspecific (laterality test). Further, their behavioural response (i.e. time spent near the fence, vocalisations, and activity level) during forced separation by an open-mesh fence was assessed (separation test). Individual laterality was recorded for 44.2% ewes (significant right bias) and 81.4% lambs (equally biased to the left and the right). There was no significant association in side bias between dams and offspring. The Chi-squared test revealed a significant population bias for both groups (p < 0.05). Evolutionary adaptive strategies or stimuli-related visual laterality may provide explanation for this decision-making process. Absolute strength of laterality (irrespective of side) was high (Kolmogorov-Smirnov test, dams: D = 0.2; p < 0.001; lambs: D = 0.36, p < 0.0001). The Wilcoxon test showed that lateralised lambs and dams spent significantly more time near each other during separation than non-lateralised animals (p < 0.05), and that lateralised dams were also more active than non-lateralised ones. Arguably, the lateralised animals showed a greater attraction to their pair because they were more disturbed and thus required greater reassurance. The data show that measures of laterality offer a potential novel non-invasive indicator of separation stress.

show abstract

Section: Discussionmentioning

confidence: 99%

Laterality as an indicator of emotional stress in ewes and lambs during a separation test

et al. 2015

View full text Add to dashboard Cite

show abstract

“…For instance, in sheep social isolation stress is reduced by familiar faces and leads to increased activity in the right hemisphere [51], and strongly lateralized mothers had higher stress response than weakly lateralized mothers following separation from their young [52]. Further, stress induced temperature elevation in the right ear, corresponding to the right hemisphere, has been reported in marmosets [53] and cats [54]. Chronic stress causes neural damage in the right hemisphere in rats [55], and in humans suffering of major depressive disorders there is also a right hemisphere balance [56].…”

Section: Lateralization and Behaviourmentioning

confidence: 96%

Dominance and stress signalling of carotenoid pigmentation in Arctic charr (Salvelinus alpinus): Lateralization effects?

Bäckström

Heynen

Brännäs

et al. 2015

Physiology & Behavior

View full text Add to dashboard Cite

http://www.sciencedirect.com/science/article/pii/S0031938414004685 Abstract Social conflicts are usually solved by agonistic interactions where animals use cues to signal dominance or subordinance. Pigmentation change is a common cue used for signalling. In our study, the involvement of carotenoid-based pigmentation in signalling was investigated in juvenile Arctic charr (Salvelinus alpinus). Size-matched pairs were analysed for pigmentation both before and after being tested for competitive ability. We found that dominant individuals had fewer carotenoid-based spots, both on the right and the left side, as well as lower plasma cortisol levels compared to subordinate individuals. Further, the number of spots on both sides was positively associated with plasma cortisol levels. These results indicate that carotenoid-based pigmentation in Arctic charr signals dominance and stress coping style. Further, it also appears as if carotenoid-based pigmentation is lateralized in Arctic charr, and that the right side signals aggression and dominance whereas the left side signals stress responsiveness.

show abstract

“…in the form of differences in temperature of the tympanic membrane [26][27][28][29][30]. Such differences have been found to be associated with stress in several species (humans [32]; macaques [32]; cats [1]). Whether or not these differences are also reflected in a lateralized temperature differences at the level of the ear pinnae has not been investigated to date.…”

Section: Accepted M Manuscriptmentioning

confidence: 99%

“…Stressors and negative emotional arousal are associated with physiological changes and alterations of blood flow patterns, which manifest as changes in body surface temperature ( [1]; reviewed in [2]). Infrared thermography represents a non-invasive way of measuring such changes, e.g.…”

Section: Introductionmentioning

confidence: 99%

Dynamic changes in ear temperature in relation to separation distress in dogs

Riemer

Assis

Pike

et al. 2016

Physiology & Behavior

View full text Add to dashboard Cite

Highlights• Pet dogs were tested in a brief separation test and filmed remotely using thermography• Temperature was analyzed from selected patches of both ear pinnae simultaneously• Social isolation was associated with a significant decrease in ear pinnae temperature• Temperature of the two ears did not differ significantly from each other• Long distance thermography is a useful tool in non-invasive stress monitoring AbstractInfrared thermography can visualize changes in body surface temperature that result from stress-induced physiological changes and alterations of blood flow patterns. Here we explored its use for remote stress monitoring (i.e. removing need for human presence) in a sample of six pet dogs. Dogs were tested in a brief separation test involving contact with their owner, a stranger, and social isolation for two one-minute-periods. Tests were filmed using a thermographic camera set up in a corner of the room, around 7 metres from where the subjects spent most of the time. Temperature was measured from selected regions of both ear pinnae simultaneously. Temperature of both ear pinnae showed a pattern of decrease during separation and increase when a person (either the owner or a stranger) was present, with no lateralized temperature differences between the two ears. Long distance thermographic measurement is a promising technique for non-invasive remote stress assessment, although there are some limitations related to dogs' hair structure over the ears, making it unsuitable for some subjects.

show abstract

The right ear but not the left ear temperature is related to stress-induced cortisolaemia in the domestic cat (Felis catus)

Cited by 32 publications

References 33 publications

Laterality as an indicator of emotional stress in ewes and lambs during a separation test

Laterality as an indicator of emotional stress in ewes and lambs during a separation test

Dominance and stress signalling of carotenoid pigmentation in Arctic charr (Salvelinus alpinus): Lateralization effects?

Dynamic changes in ear temperature in relation to separation distress in dogs

Contact Info

Product

Resources

About