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Gácsi, M.; Kara, E.; Belényi, B.; Topál, J.; Miklósi, Á. |
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Title  |
The effect of development and individual differences in pointing comprehension of dogs |
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Journal Article |
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Year |
2009 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
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Volume |
12 |
Issue |
3 |
Pages |
471-479 |
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Keywords |
Age Factors; Analysis of Variance; Animals; *Association Learning; Attention; Chi-Square Distribution; Choice Behavior; *Comprehension; *Concept Formation; Dogs/*psychology; Female; *Gestures; Humans; Male; Orientation; Statistics, Nonparametric |
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In spite of the rather different procedures actually used in comparative studies to test the ability of different species to rely on the human pointing gesture, there is no debate on the high performance of dogs in such tasks. Very little is known, however, on the course through which they acquire this ability or the probable factors influencing the process. Important developmental questions have remained unsolved and also some methodological concerns should be addressed before we can convincingly argue for one interpretation or another. In this study we tested 180 dogs of different age (from 2 months to adults) to investigate their performance in the human distal momentary pointing gesture. The results, analyzed at both the group and the individual levels, showed no difference in the performance according to age, indicating that in dogs the comprehension of the human pointing may require only very limited and rapid early learning to fully develop. Interestingly, neither the keeping conditions nor the time spent in active interaction with the owner, and not even some special (agility) training for using human visual cues, had significant effect on the success and explained individual differences. The performance of the dogs was rather stable over time: during the 20 trials within a session and even when subsamples of different age were repeatedly tested. Considering that in spite of the general success at the group level, more than half of the dogs were not successful at the individual level, we revealed alternative “decision-making rules” other than following the pointing gesture of the experimenter. |
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Department of Ethology, Eotvos University, Budapest, Hungary. gm.art@t-online.hu |
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1435-9456 |
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PMID:19130102 |
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Equine Behaviour @ team @ |
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4969 |
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Nosek, J. |
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The ecology and public health importance of Dermacentor marginatus and D. reticulatus ticks in Central Europe |
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Year |
1972 |
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Folia Parasitologica |
Abbreviated Journal |
Folia Parasitol (Praha) |
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19 |
Issue |
1 |
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93-102 |
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Keywords |
Animals; Arthropod Vectors; Birds; Cattle; Czechoslovakia; Deer; Dermacentor/physiology; Dogs; Ecology; Encephalitis, Tick-Borne; Europe; Female; Goats; Horses; Insectivora; Male; Mice; Rodentia; Sheep; Swine; *Ticks |
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0015-5683 |
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PMID:4670812 |
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Equine Behaviour @ team @ |
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2720 |
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Hare, B.; Brown, M.; Williamson, C.; Tomasello, M. |
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Title |
The domestication of social cognition in dogs |
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Journal Article |
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Year |
2002 |
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Science (New York, N.Y.) |
Abbreviated Journal |
Science |
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298 |
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5598 |
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1634-1636 |
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Keywords |
Animals; *Animals, Domestic; *Behavior, Animal; *Cognition; *Cues; *Dogs; Food; Humans; Memory; Pan troglodytes; *Social Behavior; Species Specificity; Vision; Wolves |
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Dogs are more skillful than great apes at a number of tasks in which they must read human communicative signals indicating the location of hidden food. In this study, we found that wolves who were raised by humans do not show these same skills, whereas domestic dog puppies only a few weeks old, even those that have had little human contact, do show these skills. These findings suggest that during the process of domestication, dogs have been selected for a set of social-cognitive abilities that enable them to communicate with humans in unique ways. |
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Department of Anthropology, Harvard University, Cambridge, MA 02138, USA. bhare@fas.harvard.edu |
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1095-9203 |
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PMID:12446914 |
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Call Number |
refbase @ user @ |
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595 |
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Author |
Iwuala, M.O.; Okpala, I. |
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Studies on the ectoparasitic fauna of Nigerian livestock II: Seasonal infestation rates |
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Journal Article |
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Year |
1978 |
Publication |
Bulletin of Animal Health and Production in Africa. Bulletin des Sante et Production Animales en Afrique |
Abbreviated Journal |
Bull Anim Health Prod Afr |
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Volume |
26 |
Issue |
4 |
Pages |
351-359 |
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Keywords |
Animal Diseases/*epidemiology; Animals; Cattle; Dogs; Ecology; Ectoparasitic Infestations/epidemiology/*veterinary; Goats; Horses; Nigeria; Seasons; Sheep; Swine |
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0378-9721 |
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PMID:756759 |
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Equine Behaviour @ team @ |
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2695 |
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Iwuala, M.O.; Okpala, I. |
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Title |
Studies on the ectoparasitic fauna of Nigerian livestock I: Types and distribution patterns on hosts' |
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Journal Article |
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Year |
1978 |
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Bulletin of Animal Health and Production in Africa. Bulletin des Sante et Production Animales en Afrique |
Abbreviated Journal |
Bull Anim Health Prod Afr |
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26 |
Issue |
4 |
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339-350 |
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Keywords |
Animal Diseases/*epidemiology; Animals; Cattle; Dogs; Ecology; Ectoparasitic Infestations/epidemiology/*veterinary; Goats; Horses; Nigeria; Sheep; Swine |
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0378-9721 |
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PMID:756758 |
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Equine Behaviour @ team @ |
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2696 |
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Author |
Gácsi, M; Györi, B; Miklósi, Á; Virányi, Z; Kubinyi, E; Topál,J; Csányi, V |
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Title |
Species-specific differences and similarities in the behavior of hand-raised dog and wolf pups in social situations with humans |
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Journal Article |
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Year |
2005 |
Publication |
Developmental Psychobiology |
Abbreviated Journal |
Dev Psychobiol |
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47 |
Issue |
2 |
Pages |
111-122 |
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Keywords |
hand-raising • domestication • inborn social preferences • communicative signals • dog • wolf |
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Abstract |
In order to reveal early species-specific differences, we observed the behavior of dog puppies (n = 11) and wolf pups (n = 13) hand raised and intensively socialized in an identical way. The pups were studied in two object-preference tests at age 3, 4, and 5 weeks. After a short isolation, we observed the subjects' behavior in the presence of a pair of objects, one was always the subject's human foster parent (caregiver) and the other was varied; nursing bottle (3 weeks), unfamiliar adult dog (3 and 5 weeks), unfamiliar experimenter (4 and 5 weeks), and familiar conspecific age mate (4 weeks). Dogs and wolves did not differ in their general activity level during the tests. Wolf pups showed preference for the proximity of the caregiver in two of the tests; Bottle-Caregiver at the age of 3 weeks and Experimenter-Caregiver at the age of 5 weeks, while dogs showed preference to the caregiver in three tests; conspecific Pup-Caregiver and Experimenter-Caregiver at the age of 4 weeks and dog-caregiver at the age of 5. Compared to wolves, dogs tended to display more communicative signals that could potentially facilitate social interactions, such as distress vocalization, tail wagging, and gazing at the humans' face. In contrast to dog puppies, wolf pups showed aggressive behavior toward a familiar experimenter and also seemed to be more prone to avoidance. Our results demonstrate that already at this early age - despite unprecedented intensity of socialization and the comparable social (human) environment during early development - there are specific behavioral differences between wolves and dogs mostly with regard to their interactions with humans. © 2005 Wiley Periodicals, Inc. Dev Psychobiol 47 – 111-122, 2005. |
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Department of Ethology, Eötvös University, Budapest, Pázmány P. 1/c. 1117 Hungary; Comparative Ethology Research Group, Hungarian Academy of Sciences, Budapest, Pázmány P. 1/c. 1117 Hungary |
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Copyright © 2005 Wiley Periodicals, Inc. |
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Equine Behaviour @ team @ |
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4985 |
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Author |
Gomez, J.-C. |
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Title |
Species comparative studies and cognitive development |
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Journal Article |
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2005 |
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Trends in Cognitive Sciences |
Abbreviated Journal |
Trends. Cognit. Sci. |
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9 |
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3 |
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118-125 |
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Keywords |
Animals; Attention/physiology; Brain/*growth & development; Child, Preschool; Cognition/*physiology; Concept Formation/physiology; Dogs; Evolution; Fixation, Ocular; Gorilla gorilla; Humans; Infant; Learning/*physiology; Macaca mulatta; Mental Recall/physiology; Personal Construct Theory; Psychomotor Performance/physiology; Species Specificity |
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The comparative study of infant development and animal cognition brings to cognitive science the promise of insights into the nature and origins of cognitive skills. In this article, I review a recent wave of comparative studies conducted with similar methodologies and similar theoretical frameworks on how two core components of human cognition--object permanence and gaze following--develop in different species. These comparative findings call for an integration of current competing accounts of developmental change. They further suggest that evolution has produced developmental devices capable at the same time of preserving core adaptive components, and opening themselves up to further adaptive change, not only in interaction with the external environment, but also in interaction with other co-developing cognitive systems. |
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Scottish Primate Research Group, School of Psychology, University of St Andrews, St Andrews, Fife KY15 9JU, UK |
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1364-6613 |
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PMID:15737820 |
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Equine Behaviour @ team @ |
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2851 |
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Osthaus, B.; Proops, L.; Hocking, I.; Burden, F. |
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Spatial cognition and perseveration by horses, donkeys and mules in a simple A-not-B detour task |
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Journal Article |
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2013 |
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Animal Cognition |
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16 |
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2 |
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301-305 |
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Equids; Donkeys; Horses; Mules; Dogs; Detour; Spatial reasoning; A-not-B; Perseveration |
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We investigated perseveration and detour behaviour in 36 equids (Equus caballus, E. asinus, E. caballus × E. asinus) and compared these data to those of a previous study on domestic dogs (Canis familiaris). The animals were required to make a detour through a gap at one end of a straight barrier in order to reach a visible target. After one, two, three or four repeats (A trials), the gap was moved to the opposite end of the barrier (B trials). We recorded initial deviations from the correct solution path and the latency to crossing the barrier. In the A trials, mules crossed the barrier significantly faster than their parental species, the horses and donkeys. In the B trials, following the change of gap location, all species showed a reduction in performance. Both dogs and horses exhibited significant spatial perseveration, going initially to the previous gap location. Donkeys and mules, however, performed at chance level. Our results suggest that hybrid vigour in mules extends to spatial abilities. |
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Springer-Verlag |
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English |
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1435-9448 |
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Equine Behaviour @ team @ |
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5694 |
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Siniscalchi, M.; Sasso, R.; Pepe, A.M.; Dimatteo, S.; Vallortigara, G.; Quaranta, A. |
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Title |
Sniffing with the right nostril: lateralization of response to odour stimuli by dogs |
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Animal Behaviour |
Abbreviated Journal |
Anim. Behav. |
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In Press, Corrected Proof |
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animal welfare; Canis familiaris; dog; emotion; laterality olfaction; physiology |
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Lateralization in dogs, Canis familiaris, has been reported for paw usage and response to visual and acoustic stimuli. Surprisingly, however, no investigation of possible lateralization for the most relevant sensory domain of dogs, namely olfaction, has been carried out. Here we investigated left and right nostril use in dogs freely sniffing different emotive stimuli in unrestrained conditions. When sniffing novel nonaversive stimuli (food, lemon, vaginal secretion and cotton swab odours), dogs showed initial preferential use of the right nostril and then a shift towards use of the left nostril with repeated stimulus presentation. When sniffing arousal stimuli such as adrenaline and veterinary sweat odorants, dogs showed a consistent right nostril bias all over the series of stimulus presentations. Results suggest initial involvement of the right hemisphere in processing of novel stimuli followed by the left hemisphere taking charge of control of routine behaviour. Sustained right nostril response to arousal stimuli appears to be consistent with the idea that the sympathetic hypothalamic-pituitary-adrenal axis is mainly under the control of the right hemisphere. The implications of these findings for animal welfare are discussed. |
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0003-3472 |
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Equine Behaviour @ team @ |
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5394 |
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Author |
Tomkins, L.M.; Williams, K.A.; Thomson, P.C.; McGreevy, P.D. |
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Title |
Sensory Jump Test as a measure of sensory (visual) lateralization in dogs (Canis familiaris) |
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Journal Article |
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Year |
2010 |
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Journal of Veterinary Behavior |
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5 |
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5 |
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256-267 |
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sensory lateralization; monocular vision; binocular vision; jump kinematics; dog |
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Sensory lateralization in dogs (n = 74) was investigated in this study using our innovation, the Sensory Jump Test. This required the modification of head halters to create three different ocular treatments (binocular, right, and left monocular vision) for eye preference assessment in a jumping task. Ten jumps were recorded as a jump set for each treatment. Measurements recorded included (i) launch and landing paws, (ii) type of jump, (iii) approach distance, (iv) clearance height of the forepaw, hindpaw, and the lowest part of the body to clear the jump, and (v) whether the jump was successful. Factors significantly associated with these jump outcomes included ocular treatment, jump set number, and replication number. Most notably, in the first jump set, findings indicated a left hemispheric dominance for the initial navigation of the Sensory Jump Test, as left monocular vision (LMV) compromised of jumping more than right monocular (RMV) and binocular vision, with a significantly reduced approach distance and forepaw clearance observed in dogs with LMV. However, by the third jump set, dogs undergoing LMV launched from a greater approach distance and with a higher clearance height, corresponding to an increase in success rate of the jump, in comparison with RMV and binocular vision dogs. A marginally non-significant RMV bias was observed for eye preference based on the laterality indices for approach distance (P = 0.060) and lowest body part clearance height (P = 0.067). A comparison between eye preference and launching or landing paws showed no association between these measures of sensory and motor laterality. To our knowledge, this is the first study to report on sensory lateralization in the dog, and furthermore, to compare both motor and sensory laterality in dogs. |
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1558-7878 |
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Equine Behaviour @ team @ S1558-7878(10)00019-5 |
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5379 |
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