| Records |
| Author |
Siniscalchi, M.; Lusito, R.; Vallortigara, G.; Quaranta, A. |
| Title |
Seeing Left- or Right-Asymmetric Tail Wagging Produces Different Emotional Responses in Dogs |
Type |
Journal Article |
| Year |
2013 |
Publication  |
Current Biology |
Abbreviated Journal |
Curr Biol |
| Volume |
23 |
Issue |
22 |
Pages |
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| Abstract |
Summary Left-right asymmetries in behavior associated with asymmetries in the brain are widespread in the animal kingdom [1], and the hypothesis has been put forward that they may be linked to animals’ social behavior [2, 3]. Dogs show asymmetric tail-wagging responses to different emotive stimuli [4]—the outcome of different activation of left and right brain structures controlling tail movements to the right and left side of the body. A crucial question, however, is whether or not dogs detect this asymmetry. Here we report that dogs looking at moving video images of conspecifics exhibiting prevalent left- or right-asymmetric tail wagging showed higher cardiac activity and higher scores of anxious behavior when observing left- rather than right-biased tail wagging. The finding that dogs are sensitive to the asymmetric tail expressions of other dogs supports the hypothesis of a link between brain asymmetry and social behavior and may prove useful to canine animal welfare theory and practice. |
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| ISSN |
0960-9822 |
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Equine Behaviour @ team @ |
Serial |
5734 |
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| Author |
Yorke, J.; Nugent, W.; Strand, E.; Bolen, R.; New, J.; Davis, C. |
| Title |
Equine-assisted therapy and its impact on cortisol levels of children and horses: a pilot study and meta-analysis |
Type |
Journal Article |
| Year |
2013 |
Publication |
Early Child Development and Care |
Abbreviated Journal |
Early Child Development and Care |
| Volume |
183 |
Issue |
7 |
Pages |
874-894 |
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| Abstract |
Childhood trauma, abuse or neglect impacts the function and structure of the brain of affected children. Attunement with other beings as well as an enriched environment can contribute to normal brain development. The enriched environment of a barn and attunement with an animal may contribute to reductions in stress for traumatised children. A pilot study, using a multiple base line, single case design included four children with post-traumatic stress syndrome (aged eight to ten years) and four therapy riding horses. This study hypothesised that cortisol would correlate between each child?horse pair, using a 12-day intervention that included six consecutive days of riding and grooming. A meta-analysis was completed of correlation levels of four child?horse pairs The weighted mean cross-correlation, controlling for autocorrelation, was 0.23, Z?=?3.03, approximate 95% confidence interval 0.23?±?(1.96???0.076) or 0.08 to 0.38. The data suggest a need for further research. |
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Routledge |
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0300-4430 |
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doi: 10.1080/03004430.2012.693486 |
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Equine Behaviour @ team @ |
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6034 |
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| Author |
Clucas, B.; Marzluff, J.M.; Mackovjak, D.; Palmquist, I. |
| Title |
Do American Crows Pay Attention to Human Gaze and Facial Expressions? |
Type |
Journal Article |
| Year |
2013 |
Publication |
Ethology |
Abbreviated Journal |
Ethology |
| Volume |
119 |
Issue |
4 |
Pages |
296-302 |
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| Abstract |
Interactions between species can lead to the evolution of interspecific communication. Non-verbal communication by humans, both intentional and unintentional, can be interpreted by other species. We tested whether American crows (Corvus brachyrhynchos) were sensitive to human facial features under field conditions by comparing flight initiation distances and urgency of escape behavior to human approaches varying in eye contact and facial expression. We first examined whether crows distinguish between an approaching human who is directly gazing at them and a human approaching them with an averted gaze. In a second experiment, we tested whether crows differentiate a smiling from scowling human approaching them with direct or averted gaze. In the first experiment, we found that crows fled sooner and more urgently when humans were directly gazing at them. Similarly, in the second experiment, crows responded sooner to a direct vs. averted gaze; however, they did not react differently to varying human facial expressions. We suggest that crows use human gaze as a reliable visual cue compared with facial expressions when making decisions about responding to approaching humans. This is the first study to show that a wild corvid species changes its behavior based on human gaze, possibly representing an adaptation to living in human-dominated urban areas and suggesting crows might perceive human intention by this visual cue. |
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1439-0310 |
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Equine Behaviour @ team @ |
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5670 |
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| Author |
Iliopoulos, Y.; Youlatos, D.; Sgardelis, S. |
| Title |
Wolf pack rendezvous site selection in Greece is mainly affected by anthropogenic landscape features |
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Journal Article |
| Year |
2013 |
Publication |
Eur J Wildl Res |
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60 |
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Equine Behaviour @ team @ Iliopoulos2013 |
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6478 |
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| Author |
Silk, J.; Cheney, D.; Seyfarth, R. |
| Title |
A practical guide to the study of social relationships |
Type |
Journal Article |
| Year |
2013 |
Publication |
Evolutionary Anthropology: Issues, News, and Reviews |
Abbreviated Journal |
Evol. Anthropol. |
| Volume |
22 |
Issue |
5 |
Pages |
213-225 |
| Keywords |
observational methods; behavioral analysis; methods; dyadic relationships; social bonds |
| Abstract |
Behavioral ecologists have devoted considerable effort to identifying the sources of variation in individual reproductive success. Much of this work has focused on the characteristics of individuals, such as their sex and rank. However, many animals live in stable social groups and the fitness of individuals depends at least in part on the outcome of their interactions with other group members. For example, in many primate species, high dominance rank enhances access to resources and reproductive success. The ability to acquire and maintain high rank often depends on the availability and effectiveness of coalitionary support. Allies may be cultivated and coalitions may be reinforced by affiliative interactions such as grooming, food sharing, and tolerance. These findings suggest that if we want to understand the selective pressures that shape the social behavior of primates, it will be profitable to broaden our focus from the characteristics of individuals to the properties of the relationships that they form with others. The goal of this paper is to discuss a set of methods that can be used to quantify the properties of social relationships. |
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1520-6505 |
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no |
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Equine Behaviour @ team @ |
Serial |
5748 |
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| Author |
Larsson, M. |
| Title |
The optic chiasm: a turning point in the evolution of eye/hand coordination |
Type |
Journal Article |
| Year |
2013 |
Publication |
Frontiers in Zoology |
Abbreviated Journal |
Front. Zool. |
| Volume |
10 |
Issue |
1 |
Pages |
41 |
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| Abstract |
The primate visual system has a uniquely high proportion of ipsilateral retinal projections, retinal ganglial cells that do not cross the midline in the optic chiasm. The general assumption is that this developed due to the selective advantage of accurate depth perception through stereopsis. Here, the hypothesis that the need for accurate eye-forelimb coordination substantially influenced the evolution of the primate visual system is presented. Evolutionary processes may change the direction of retinal ganglial cells. Crossing, or non-crossing, in the optic chiasm determines which hemisphere receives visual feedback in reaching tasks. Each hemisphere receives little tactile and proprioceptive information about the ipsilateral hand. The eye-forelimb hypothesis proposes that abundant ipsilateral retinal projections developed in the primate brain to synthesize, in a single hemisphere, visual, tactile, proprioceptive, and motor information about a given hand, and that this improved eye-hand coordination and optimized the size of the brain. If accurate eye-hand coordination was a major factor in the evolution of stereopsis, stereopsis is likely to be highly developed for activity in the area where the hands most often operate.The primate visual system is ideally suited for tasks within arm's length and in the inferior visual field, where most manual activity takes place. Altering of ocular dominance in reaching tasks, reduced cross-modal cuing effects when arms are crossed, response of neurons in the primary motor cortex to viewed actions of a hand, multimodal neuron response to tactile as well as visual events, and extensive use of multimodal sensory information in reaching maneuvers support the premise that benefits of accurate limb control influenced the evolution of the primate visual system. The eye-forelimb hypothesis implies that evolutionary change toward hemidecussation in the optic chiasm provided parsimonious neural pathways in animals developing frontal vision and visually guided forelimbs, and also suggests a new perspective on vision convergence in prey and predatory animals. |
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1742-9994 |
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no |
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Equine Behaviour @ team @ |
Serial |
5685 |
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| Author |
Fuchs, K.; Götz, K.; Manschel, K.; Pohl, L.; Preisendanz, L.; Weil, S.; Weiß, V.; Wittum, J.; Krueger, K. |
| Title |
Vergleich der Interaktionen von Pferden in Boxenhaltung mit Weidegang und Pferden in Offenstallhaltung |
Type |
Conference Article |
| Year |
2013 |
Publication |
Göttinger Pferdetage’13 |
Abbreviated Journal |
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| Volume |
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Issue |
13 |
Pages |
65 |
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978-3-88542-782-7 |
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no |
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Equine Behaviour @ team @ |
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5948 |
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| Author |
Ruess, M.; Schmelz, A.; Krueger, K. |
| Title |
Einfluss vitomechanischer Schwingungen auf das Muskuloskeletalsystem der Pferde |
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Conference Article |
| Year |
2013 |
Publication |
Göttinger Pferdetage’13 |
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13 |
Pages |
111 |
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978-3-88542-782-7 |
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no |
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Equine Behaviour @ team @ |
Serial |
5949 |
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| Author |
Lerbs, S.; Raue, T.; Krueger, K |
| Title |
Untersuchung der natürlichen Schiefe der Fohlen in Abhängigkeit zur sensorischen und motorischen Lateralität, sowie zur Seitenpräferenz beim Saugen |
Type |
Conference Article |
| Year |
2013 |
Publication |
Göttinger Pferdetage’13 |
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13 |
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978-3-88542-782-7 |
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no |
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Equine Behaviour @ team @ |
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5950 |
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| Author |
GONÇALVES DA SILVA, A.; CAMPOS-ARCEIZ, A.; ZAVADA, M.S. |
| Title |
On tapir ecology, evolution and conservation: what we know and future perspectives–part II |
Type |
Journal Article |
| Year |
2013 |
Publication |
Integrative Zoology |
Abbreviated Journal |
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| Volume |
8 |
Issue |
1 |
Pages |
1-3 |
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Blackwell Publishing Ltd |
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1749-4877 |
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no |
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Equine Behaviour @ team @ |
Serial |
6141 |
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