| Records |
Author  |
Van Schaik, C.P.; Isler, K.; Burkart, J.M. |
| Title |
Explaining brain size variation: from social to cultural brain |
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Journal Article |
| Year |
2012 |
Publication |
Trends Ecol Evol |
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16 |
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Equine Behaviour @ team @ Van Schaik2012 |
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6304 |
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| Author |
Van Schaik, C.P.; Burkart, J.M. |
| Title |
Social learning and evolution: the cultural intelligence hypothesis |
Type |
Journal Article |
| Year |
2011 |
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Philos Trans R Soc B |
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366 |
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Equine Behaviour @ team @ Van Schaik2011 |
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6227 |
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| Author |
Van Horik, J.; Emery, N. |
| Title |
Evolution of cognition |
Type |
Journal Article |
| Year |
2011 |
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Wiley Interdiscip Rev Cogn Sci |
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2 |
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Equine Behaviour @ team @ Van Horik2011 |
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6230 |
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| Author |
Van Horik, J.; Clayton, N.; Emery, N. |
| Title |
Convergent evolution of cognition in Corvids, Apes and other animals |
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Book Chapter |
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2012 |
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Oxford Handbook of Comparative Evolutionary Psychology |
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Oxford University Press |
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New York |
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Vonk, J.; Shackelford, T. |
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Equine Behaviour @ team @ Van Horik2012 |
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6284 |
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Van Horik, J.; Clayton, N.; Emery, N. |
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Oxford Handbook of Comparative Evolutionary Psychology |
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Oxford University Press |
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New York |
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Vonk, J.; Shackelford, T. |
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Equine Behaviour @ team @ |
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6403 |
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| Author |
van de Waal, E.; Bshary, R. |
| Title |
Social-learning abilities of wild vervet monkeys in a two-step task artificial fruit experiment |
Type |
Journal Article |
| Year |
2011 |
Publication |
Anim Behav |
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81 |
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no |
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Equine Behaviour @ team @ van de Waal2011 |
Serial |
6262 |
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| Author |
van de Waal, E.; Bshary, R. |
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Contact with human facilities appears to enhance technical skills in wild vervet monkeys (Chlorocebus aethiops) |
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Journal Article |
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2010 |
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Folia Primatol |
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81 |
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no |
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Equine Behaviour @ team @ van de Waal2010 |
Serial |
6265 |
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| Author |
Valenchon, M.; Lévy, F.; Moussu, C.; Lansade, L. |
| Title |
Stress affects instrumental learning based on positive or negative reinforcement in interaction with personality in domestic horses |
Type |
Journal Article |
| Year |
2017 |
Publication |
Plos One |
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Plos One |
| Volume |
12 |
Issue |
5 |
Pages |
e0170783 |
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The present study investigated how stress affects instrumental learning performance in horses (Equus caballus) depending on the type of reinforcement. Horses were assigned to four groups (N = 15 per group); each group received training with negative or positive reinforcement in the presence or absence of stressors unrelated to the learning task. The instrumental learning task consisted of the horse entering one of two compartments at the appearance of a visual signal given by the experimenter. In the absence of stressors unrelated to the task, learning performance did not differ between negative and positive reinforcements. The presence of stressors unrelated to the task (exposure to novel and sudden stimuli) impaired learning performance. Interestingly, this learning deficit was smaller when the negative reinforcement was used. The negative reinforcement, considered as a stressor related to the task, could have counterbalanced the impact of the extrinsic stressor by focusing attention toward the learning task. In addition, learning performance appears to differ between certain dimensions of personality depending on the presence of stressors and the type of reinforcement. These results suggest that when negative reinforcement is used (i.e. stressor related to the task), the most fearful horses may be the best performers in the absence of stressors but the worst performers when stressors are present. On the contrary, when positive reinforcement is used, the most fearful horses appear to be consistently the worst performers, with and without exposure to stressors unrelated to the learning task. This study is the first to demonstrate in ungulates that stress affects learning performance differentially according to the type of reinforcement and in interaction with personality. It provides fundamental and applied perspectives in the understanding of the relationships between personality and training abilities. |
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Public Library of Science |
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Equine Behaviour @ team @ |
Serial |
6202 |
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| Author |
Trösch, M.; Pellon, S.; Cuzol, F.; Parias, C.; Nowak, R.; Calandreau, L.; Lansade, L. |
| Title |
Horses feel emotions when they watch positive and negative horse-human interactions in a video and transpose what they saw to real life |
Type |
Journal Article |
| Year |
2020 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
| Volume |
23 |
Issue |
4 |
Pages |
643-653 |
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| Abstract |
Animals can indirectly gather meaningful information about other individuals by eavesdropping on their third-party interactions. In particular, eavesdropping can be used to indirectly attribute a negative or positive valence to an individual and to adjust one's future behavior towards that individual. Few studies have focused on this ability in nonhuman animals, especially in nonprimate species. Here, we investigated this ability for the first time in domestic horses (Equus caballus) by projecting videos of positive and negative interactions between an unknown human experimenter (a “positive” experimenter or a “negative” experimenter) and an actor horse. The horses reacted emotionally while watching the videos, expressing behavioral (facial expressions and contact-seeking behavior) and physiological (heart rate) cues of positive emotions while watching the positive video and of negative emotions while watching the negative video. This result shows that the horses perceived the content of the videos and suggests an emotional contagion between the actor horse and the subjects. After the videos were projected, the horses took a choice test, facing the positive and negative experimenters in real life. The horses successfully used the interactions seen in the videos to discriminate between the experimenters. They touched the negative experimenter significantly more, which seems counterintuitive but can be interpreted as an appeasement attempt, based on the existing literature. This result suggests that horses can indirectly attribute a valence to a human experimenter by eavesdropping on a previous third-party interaction with a conspecific. |
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1435-9456 |
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no |
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Equine Behaviour @ team @ Trösch2020 |
Serial |
6649 |
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| Author |
Tooze, Z.J.; Harrington, F.H.; Fentress, J.C. |
| Title |
Individually distinct vocalizations in timber wolves, Canis lupus |
Type |
Journal Article |
| Year |
1990 |
Publication |
Anim Behav |
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40 |
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Equine Behaviour @ team @ Tooze1990 |
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6468 |
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