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Author |
d'Ingeo, S.; Quaranta, A.; Siniscalchi, M.; Stomp, M.; Coste, C.; Bagnard, C.; Hausberger, M.; Cousillas, H. |
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Title |
Horses associate individual human voices with the valence of past interactions: a behavioural and electrophysiological study |
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Journal Article |
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2019 |
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Scientific Reports |
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9 |
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1 |
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11568 |
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Brain lateralization is a phenomenon widely reported in the animal kingdom and sensory laterality has been shown to be an indicator of the appraisal of the stimulus valence by an individual. This can prove a useful tool to investigate how animals perceive intra- or hetero-specific signals. The human-animal relationship provides an interesting framework for testing the impact of the valence of interactions on emotional memories. In the present study, we tested whether horses could associate individual human voices with past positive or negative experiences. Both behavioural and electroencephalographic measures allowed examining laterality patterns in addition to the behavioural reactions. The results show that horses reacted to voices associated with past positive experiences with increased attention/arousal (gamma oscillations in the right hemisphere) and indicators of a positive emotional state (left hemisphere activation and ears held forward), and to those associated with past negative experiences with negative affective states (right hemisphere activation and ears held backwards). The responses were further influenced by the animals' management conditions (e.g. box or pasture). Overall, these results, associating brain and behaviour analysis, clearly demonstrate that horses' representation of human voices is modulated by the valence of prior horse-human interactions. |
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2045-2322 |
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Equine Behaviour @ team @ d'Ingeo2019 |
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6582 |
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Core Development Team, R. |
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Title |
R: a language and environment for statistical computing |
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2011 |
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R foundation for statistical computing |
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Vienna, Austria |
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Equine Behaviour @ team @ Core Development Team2011 |
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6489 |
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Coblentz, B.E. |
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The effects of feral goats (Capra hircus) on island ecosystems |
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1978 |
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Biol Conserv |
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13 |
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Equine Behaviour @ team @ Coblentz1978 |
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6250 |
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Clutton-Brock, J. |
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Origins of the dog: domestication and early history |
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1995 |
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The Domestic Dog: Its Evolution, Behaviour and Interactions with People |
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Cambridge University Press |
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Cambridge |
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Serpell, J.A. |
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Equine Behaviour @ team @ Clutton-Brock1995 |
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6247 |
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Charif, R.A.; Waack, A.M.; Strickman, L.M. |
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Title |
Raven Pro 1.3 User's Manual |
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2008 |
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Cornell Laboratory of Ornithology |
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Ithaca, New York |
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Equine Behaviour @ team @ Charif2008 |
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6488 |
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Chapron, G.; Kaczensky, P.; Linnell, J.D.C.; Arx, M.; Huber, D.; Andrén, H. |
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Title |
Recovery of large carnivores in Europe's modern human-dominated landscapes |
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2014 |
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Science |
Abbreviated Journal |
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346 |
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Equine Behaviour @ team @ Chapron2014 |
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6451 |
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Author |
Camerlink, I.; Menneson, S.; Turner, S.P.; Farish, M.; Arnott, G. |
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Title |
Lateralization influences contest behaviour in domestic pigs |
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Journal Article |
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Year |
2018 |
Publication |
Scientific Reports |
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Volume |
8 |
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1 |
Pages |
12116 |
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Abstract |
Cerebral lateralization, i.e. hemispheric asymmetries in structure and function, relates in many species to a preference to attack from their left. Lateralization increases cognitive capacity, enabling the simultaneous processing of multiple sources of information. Therefore, lateralization may constitute a component of fighting ability (Resource Holding Potential), and/or influence the efficiency of information-gathering during a contest. We hypothesized that lateralization will affect contest outcome and duration, with an advantage for more strongly lateralized individuals. In 52 dyadic contests between weight-matched pigs (Sus scrofa; n = 104; 10 wk age), the direction of orientation towards the opponent was scan sampled every 10 s. Laterality indexes (LI) were calculated for the direction and strength of lateralization. Up to 12.5% of the individuals showed significant lateralization towards either the right or left but lateralization was absent at the population level. In line with our hypothesis, animals showing strong lateralization (irrespective of direction) had a shorter contest duration than animals showing weak lateralization. Winners did not differ from losers in their strength or direction of lateralization. Overall the results suggest that cerebral lateralization may aid in conflict resolution, but does not directly contribute to fighting ability, and will be of value in the study of animal contests. |
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2045-2322 |
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Equine Behaviour @ team @ Camerlink2018 |
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6700 |
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Author |
Burch, J.W.; Layne, G.A.; Follmann, E.H.; Rexstad, E.A. |
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Title |
Evaluation of Wolf Density Estimation from Radiotelemetry Data |
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Journal Article |
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2005 |
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Wildl Soc Bull |
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33 |
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Equine Behaviour @ team @ Burch2005 |
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6477 |
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Author |
Brust, V.; Guenther, A. |
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Title |
Domestication effects on behavioural traits and learning performance: comparing wild cavies to guinea pigs |
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Journal Article |
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Year |
2015 |
Publication |
Animal Cognition |
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Anim. Cogn. |
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18 |
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1 |
Pages |
99-109 |
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Abstract |
The domestication process leads to a change in behavioural traits, usually towards individuals that are less attentive to changes in their environment and less aggressive. Empirical evidence for a difference in cognitive performance, however, is scarce. Recently, a functional linkage between an individual's behaviour and cognitive performance has been proposed in the framework of animal personalities via a shared risk-reward trade-off. Following this assumption, bolder and more aggressive animals (usually the wild form) should learn faster. Differences in behaviour may arise during ontogeny due to individual experiences or represent adaptations that occurred over the course of evolution. Both might singly or taken together account for differences in cognitive performance between wild and domestic lineages. To test for such possible linkages, we compared wild cavies and domestic guinea pigs, both kept in a university stock for more than 30 years under highly comparable conditions. Animals were tested in three behavioural tests as well as for initial and reversal learning performance. Guinea pigs were less bold and aggressive than their wild congeners, but learnt an association faster. Additionally, the personality structure was altered during the domestication process. The most likely explanation for these findings is that a shift in behavioural traits and their connectivity led to an altered cognitive performance. A functional linkage between behavioural and cognitive traits seems to exist in the proposed way only under natural selection, but not in animals that have been selected artificially over centuries. |
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1435-9456 |
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Equine Behaviour @ team @ Brust2015 |
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6194 |
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Author |
Briefer, E.F.; Haque, S.; Baciadonna, L.; McElligott, A.G. |
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Title |
Goats excel at learning and remembering a highly novel cognitive task |
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Journal Article |
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2014 |
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Frontiers in Zoology |
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Front. Zool. |
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11 |
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Pages |
20 |
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The computational demands of sociality (maintaining group cohesion, reducing conflict) and ecological problems (extractive foraging, memorizing resource locations) are the main drivers proposed to explain the evolution cognition. Different predictions follow, about whether animals would preferentially learn new tasks socially or not, but the prevalent view today is that intelligent species should excel at social learning. However, the predictions were originally used to explain primate cognition, and studies of species with relatively smaller brains are rare. By contrast, domestication has often led to a decrease in brain size, which could affect cognition. In domestic animals, the relaxed selection pressures compared to a wild environment could have led to reduced social and physical cognition. Goats possess several features commonly associated with advanced cognition, such as successful colonization of new environments and complex fission-fusion societies. Here, we assessed goat social and physical cognition as well as long-term memory of a complex two-step foraging task (food box cognitive challenge), in order to investigate some of the main selection pressures thought to affect the evolution of ungulate cognition. |
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1742-9994 |
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Equine Behaviour @ team @ Briefer2014 |
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6376 |
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