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Farmer, K.; Krüger, K.; Byrne, R.W.; Marr, I. |
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Title |
Sensory laterality in affiliative interactions in domestic horses and ponies (Equus caballus) |
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Journal Article |
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Year |
2018 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
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21 |
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5 |
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631-637 |
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Many studies have been carried out into both motor and sensory laterality of horses in agonistic and stressful situations. Here we examine sensory laterality in affiliative interactions within four groups of domestic horses and ponies (N = 31), living in stable social groups, housed at a single complex close to Vienna, Austria, and demonstrate for the first time a significant population preference for the left side in affiliative approaches and interactions. No effects were observed for gender, rank, sociability, phenotype, group, or age. Our results suggest that right hemisphere specialization in horses is not limited to the processing of stressful or agonistic situations, but rather appears to be the norm for processing in all social interactions, as has been demonstrated in other species including chicks and a range of vertebrates. In domestic horses, hemispheric specialization for sensory input appears not to be based on a designation of positive versus negative, but more on the perceived need to respond quickly and appropriately in any given situation. |
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1435-9456 |
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Equine Behaviour @ team @ Farmer2018 |
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6386 |
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Riley, J.L.; Noble, D.W.A.; Byrne, R.W.; Whiting, M.J. |
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Title |
Does social environment influence learning ability in a family-living lizard? |
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Journal Article |
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Year |
2017 |
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Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
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Volume |
20 |
Issue |
3 |
Pages |
449-458 |
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Early developmental environment can have profound effects on individual physiology, behaviour, and learning. In birds and mammals, social isolation during development is known to negatively affect learning ability; yet in other taxa, like reptiles, the effect of social isolation during development on learning ability is unknown. We investigated how social environment affects learning ability in the family-living tree skink (Egernia striolata). We hypothesized that early social environment shapes cognitive development in skinks and predicted that skinks raised in social isolation would have reduced learning ability compared to skinks raised socially. Offspring were separated at birth into two rearing treatments: (1) raised alone or (2) in a pair. After 1 year, we quantified spatial learning ability of skinks in these rearing treatments (N = 14 solitary, 14 social). We found no effect of rearing treatment on learning ability. The number of skinks to successfully learn the task, the number of trials taken to learn the task, the latency to perform the task, and the number of errors in each trial did not differ between isolated and socially reared skinks. Our results were unexpected, yet the facultative nature of this species' social system may result in a reduced effect of social isolation on behaviour when compared to species with obligate sociality. Overall, our findings do not provide evidence that social environment affects development of spatial learning ability in this family-living lizard. |
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1435-9456 |
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Equine Behaviour @ team @ Riley2017 |
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6190 |
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Author |
Bates, L.A.; Byrne, R.W. |
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Title |
Creative or created: Using anecdotes to investigate animal cognition |
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Journal Article |
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Year |
2007 |
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Methods |
Abbreviated Journal |
Methods |
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42 |
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1 |
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12-21 |
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Anecdote; Creativity; Intelligence; Deception; Innovation; African elephant |
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In non-human animals, creative behaviour occurs spontaneously only at low frequencies, so is typically missed by standardised observational methods. Experimental approaches have tended to rely overly on paradigms from child development or adult human cognition, which may be inappropriate for species that inhabit very different perceptual worlds and possess quite different motor capacities than humans. The analysis of anecdotes offers a solution to this impasse, provided certain conditions are met. To be reliable, anecdotes must be recorded immediately after observation, and only the records of scientists experienced with the species and the individuals concerned should be used. Even then, interpretation of a single record is always ambiguous, and analysis is feasible only when collation of multiple records shows that a behaviour pattern occurs repeatedly under similar circumstances. This approach has been used successfully to study a number of creative capacities of animals: the distribution, nature and neural correlates of deception across the primate order; the occurrence of teaching in animals; and the neural correlates of several aptitudes--in birds, foraging innovation, and in primates, innovation, social learning and tool-use. Drawing on these approaches, we describe the use of this method to investigate a new problem, the cognition of the African elephant, a species whose sheer size and evolutionary distance from humans renders the conventional methods of comparative psychology of little use. The aim is both to chart the creative cognitive capacities of this species, and to devise appropriate experimental methods to confirm and extend previous findings. |
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1046-2023 |
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also special issue: Neurocognitive Mechanisms of Creativity: A Toolkit |
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no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
6185 |
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Author |
Byrne, R.W.; Whiten, A. |
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Title |
Tactical deception in primates: the 1990 database |
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Book Whole |
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Year |
1990 |
Publication |
Primate Reports |
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Primate Rep. |
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27 |
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1-101 |
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German Primate Center |
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Equine Behaviour @ team @ |
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6172 |
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Author |
Byrne, R.W. |
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Title |
Do larger brains mean greater intelligence? |
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Journal Article |
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Year |
1993 |
Publication |
Behavioral and Brain Sciences |
Abbreviated Journal |
Behav. Brain Sci. |
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16 |
Issue |
4 |
Pages |
696-697 |
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Cambridge University Press |
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1469-1825 |
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no |
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Equine Behaviour @ team @ |
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6171 |
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Whiten, A.; Byrne, R.W. |
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Title |
Tactical deception in primates |
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Journal Article |
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Year |
1988 |
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Behavioral and Brain Sciences |
Abbreviated Journal |
Behav. Brain Sci. |
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11 |
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02 |
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233-244 |
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ABSTRACT Tactical deception occurs when an individual is able to use an “honest” act from his normal repertoire in a different context to mislead familiar individuals. Although primates have a reputation for social skill, most primate groups are so intimate that any deception is likely to be subtle and infrequent. Published records are sparse and often anecdotal. We have solicited new records from many primatologists and searched for repeating patterns. This has revealed several different forms of deceptive tactic, which we classify in terms of the function they perform. For each class, we sketch the features of another individual's state of mind that an individual acting with deceptive intent must be able to represent, thus acting as a “natural psychologist.” Our analysis will sharpen attention to apparent taxonomic differences. Before these findings can be generalized, however, behavioral scientists must agree on some fundamental methodological and theoretical questions in the study of the evolution of social cognition. |
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Cambridge Journals Online |
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1469-1825 |
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Equine Behaviour @ team @ |
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5937 |
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Author |
Cochet, H.; Byrne, R.W. |
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Title |
Evolutionary origins of human handedness: evaluating contrasting hypotheses |
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Journal Article |
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Year |
2013 |
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Abbreviated Journal |
Animal Cognition |
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16 |
Issue |
4 |
Pages |
531-542 |
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Hand preference; Hemispheric specialization; Communicative gestures; Evolution of language; Nonhuman primates; Human children |
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Variation in methods and measures, resulting in past dispute over the existence of population handedness in nonhuman great apes, has impeded progress into the origins of human right-handedness and how it relates to the human hallmark of language. Pooling evidence from behavioral studies, neuroimaging and neuroanatomy, we evaluate data on manual and cerebral laterality in humans and other apes engaged in a range of manipulative tasks and in gestural communication. A simplistic human/animal partition is no longer tenable, and we review four (nonexclusive) possible drivers for the origin of population-level right-handedness: skilled manipulative activity, as in tool use; communicative gestures; organizational complexity of action, in particular hierarchical structure; and the role of intentionality in goal-directed action. Fully testing these hypotheses will require developmental and evolutionary evidence as well as modern neuroimaging data. |
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Springer-Verlag |
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English |
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1435-9448 |
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no |
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Equine Behaviour @ team @ |
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5691 |
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Author |
Byrne, R.W.; Whiten, A.; Henzi, S.P. |
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Title |
Social relationships of mountain baboons: Leadership and affiliation in a non-female-bonded monkey |
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Journal Article |
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Year |
1990 |
Publication |
American journal of primatology |
Abbreviated Journal |
Am. J. Primatol. |
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20 |
Issue |
4 |
Pages |
313-329 |
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relationships; one-male groups; female-bonding; spacing; support; Papio ursinus; Papio hamadryas |
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Abstract 10.1002/ajp.1350200409.abs Instead of close and differentiated relationships among adult females, the accepted norm for savanna baboons, groups of Drakensberg mountain baboons (Papio ursinus) showed strong affiliation of females towards a single male. The same male was usually the decision-making animal in controlling group movements. Lactating or pregnant females focused their grooming on this “leader” male, producing a radially patterned sociogram, as in the desert baboon (P. hamadryas); the leader male supported young animals in the group against aggression and protected them against external threats. Unlike typical savanna baboons, these mountain baboons rarely displayed approach-retreat or triadic interactions, and entirely lacked coalitions among adult females. Both groups studied were reproductively one-male; male-female relationships in one were like those in a unit of a hamadryas male at his peak, while the other group resembled the unit of an old hamadryas male, who still leads the group, with a male follower starting to build up a new unit and already monopolizing mating. In their mountain environment, where the low population density suggests conditions as harsh for baboons as in deserts, adults in these groups kept unusually large distances apart during ranging; kin tended to range apart, and spacing of adults was greatest at the end of the dry, winter season. These facts support the hypothesis that sparse food is responsible for convergence with hamadryas social organization. It is suggested that all baboons, though matrilocal, are better categorized as “cross-sex-bonded” than “female bonded”. |
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Wiley Subscription Services, Inc., A Wiley Company |
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ISSN |
1098-2345 |
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Equine Behaviour @ team @ |
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5309 |
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Author |
Byrne, R.W. |
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Title |
How monkeys find their way: leadership, coordination, and cognitive maps of African baboons. |
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Book Chapter |
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2000 |
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On the Move: How and Why Animals Travel in Groups |
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491–518 |
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Chicago University Press |
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Chicago |
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Boinski, S.; Garber, P.A. |
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Equine Behaviour @ team @ |
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5146 |
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Author |
Byrne, R.W. |
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Title |
Animal imitation |
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Journal Article |
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2009 |
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Current Biology |
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19 |
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3 |
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R111-R114 |
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0960-9822 |
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Equine Behaviour @ team @ |
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4735 |
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