Records |
Author |
Quaranta, A.; Siniscalchi, M.; Vallortigara, G. |
Title |
Asymmetric tail-wagging responses by dogs to different emotive stimuli |
Type |
Abstract |
Year |
2007 |
Publication |
Current biology : CB |
Abbreviated Journal |
Curr Biol |
Volume |
17 |
Issue |
6 |
Pages |
R199-R201 |
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Publisher |
Cell Press |
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Edition |
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ISSN |
0960-9822 |
ISBN |
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Call Number |
Equine Behaviour @ team @ |
Serial |
5733 |
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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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Keywords |
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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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0960-9822 |
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Call Number |
Equine Behaviour @ team @ |
Serial |
5734 |
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Author |
Quaranta, A.; Siniscalchi, M.; Frate, A.; Vallortigara, G. |
Title |
Paw preference in dogs: relations between lateralised behaviour and immunity |
Type |
Journal Article |
Year |
2004 |
Publication |
Behavioural Brain Research |
Abbreviated Journal |
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Volume |
153 |
Issue |
2 |
Pages |
521-525 |
Keywords |
Paw preference; Lateralisation; Immunity; Dog |
Abstract |
Paw use in a task consisting of the removal of a piece of adhesive paper from the snout was investigated in 80 mongrel and pure-bred domestic dogs (Canis familiaris). Population lateralisation was observed, but in opposite directions in the two sexes (animals were not desexed): males preferentially used their left paw, females their right paw. The relationship between immune function and paw preference was then investigated. Some immune parameters (total number of white blood cells including lymphocytes, granulocytes and monocytes; leukocyte formula; total proteins; γ-globulins) were investigated in a sample of left-pawed (n=6), right-pawed (n=6) and ambidextrous (n=6) dogs. The results showed that the percentage of lymphocytes was higher in left-pawed than in right-pawed and ambidextrous dogs, whereas granulocytes percentage was lower in left-pawed than in right-pawed and ambidextrous dogs. Moreover, total number of lymphocytes cells was higher in left-pawed than in right-pawed and ambidextrous dogs, whereas the number of γ-globulins was lower in left-pawed than in right-pawed and ambidextrous dogs. These findings represent the first evidence that brain asymmetry modulates immune responses in dogs. |
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ISSN |
0166-4328 |
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Equine Behaviour @ team @ |
Serial |
5783 |
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Author |
Siniscalchi, M.; Sasso, R.; Pepe, A.M.; Dimatteo, S.; Vallortigara, G.; Quaranta, A. |
Title |
Catecholamine plasma levels following immune stimulation with rabies vaccine in dogs selected for their paw preferences |
Type |
Journal Article |
Year |
2010 |
Publication |
Neuroscience Letters |
Abbreviated Journal |
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Volume |
476 |
Issue |
3 |
Pages |
142-145 |
Keywords |
Physiology; Behavior; Lateralization; Catecholamines; Paw preference; Neuro-immune-modulation |
Abstract |
Epinephrine and norepinephrine plasma levels were assessed in dogs in relation to paw preference following an immune challenge with rabies vaccine. The results showed that both catecholamines increased after the vaccine administration, confirming the main role of the sympathetic nervous system in the modulation activity between the brain and the immune system. Moreover, ambidextrous dogs showed a significantly higher increase of epinephrine levels 8 days after immunization with respect to right- and left-pawed dogs, suggesting that the biological activity of this molecule could be key for a different immune response with regard to laterality. |
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ISSN |
0304-3940 |
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Equine Behaviour @ team @ |
Serial |
5788 |
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Author |
Versace, E.; Morgante, M.; Pulina, G.; Vallortigara, G. |
Title |
Behavioural lateralization in sheep (Ovis aries) |
Type |
Journal Article |
Year |
2007 |
Publication |
Behavioural Brain Research |
Abbreviated Journal |
Behav. Brain. Res. |
Volume |
184 |
Issue |
1 |
Pages |
72-80 |
Keywords |
Lateralization; Laterality; Brain asymmetry; Hemisphere; Sheep; Lamb; Strength of lateralization |
Abstract |
This study investigates behavioural lateralization in sheep and lambs of different ages. A flock was tested in a task in which the animals were facing an obstacle and should avoid it on either the right or left side to rejoin flock-mates (adult sheep) or their mothers (lambs). A bias for avoiding the obstacle on the right side was observed, with lambs apparently being more lateralized than sheep. This right bias was tentatively associated with the left-hemifield laterality in familiar faces recognition which has been documented in this species. Differences between adult sheep and lambs were likely to be due to differences in social reinstatement motivation elicited by different stimuli (flock-mates or mothers) at different ages. Preferential use of the forelegs to step on a wood-board and direction of jaw movement during rumination was also tested in adult animals. No population bias nor individual-level lateralization was observed for use of the forelegs. At the same time, however, there was a large number of animals showing individual-level lateralization for the direction of jaw movement during rumination even though there was no population bias. These findings highlight that within the same species individual- and population-level lateralization can be observed in different tasks. Moreover, the results fit the general hypothesis that population-level asymmetries are more likely to occur in tasks that require social coordination among behaviourally asymmetric individuals. |
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0166-4328 |
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Equine Behaviour @ team @ |
Serial |
6701 |
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