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Author Zucca, P.; Cerri, F.; Carluccio, A.; Baciadonna, L.
Title Space availability influence laterality in donkeys (Equus asinus) Type Journal Article
Year Publication Behavioural Processes Abbreviated Journal Behav. Process.
Volume In Press, Uncorrected Proof Issue Pages
Keywords Cerebral lateralization; Donkey; Footedness; Welfare; Equus asinus
Abstract Cerebral lateralization is the portioning of the cognitive functions between the two cerebral hemispheres. Several factors, like embryological manipulations, light exposure, health conditions, sex and age can influence the left-right brain asymmetries and contribute to increasing the variability in the strength and direction of laterality within most species. We investigated the influence of an environmental constraint, namely space availability, as a new source of variation on laterality in an adult vertebrate model, the donkey. In a baseline condition we tested whether donkeys show a motor lateralization bias at population level, while in an experimental condition we manipulated space availability to verify if a reduction in this parameter could represent a new source of variation in laterality. Results show that donkeys are lateralized at population level with a strong bias to standing with the right forelimb advanced over the left and that a reduction of space availability is an important source of variation in the laterality strength and direction within this species. The comparative analysis of the environmental and developmental factors that give origin to neural and behavioural laterality in animal models will be very important for a better understanding of the evolutionary origin of such multifaceted phenomenon.
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ISSN 0376-6357 ISBN Medium
Area Expedition Conference (up)
Notes Approved no
Call Number Equine Behaviour @ team @ Serial 5400
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Author Schmidt, J.; Scheid, C.; Kotrschal, K.; Bugnyar, T.; Schloegl, C.
Title Gaze direction – A cue for hidden food in rooks (Corvus frugilegus)? Type Journal Article
Year 2011 Publication Behavioural Processes Abbreviated Journal
Volume 88 Issue 2 Pages 88-93
Keywords Gaze; Object choice; Corvids; Effort; Rooks
Abstract Other individual's head- and eye-directions can be used as social cues indicating the presence of important events. Among birds, ravens and rooks have been shown to co-orient with conspecifics and with humans by following their gaze direction into distant space and behind visual screens. Both species use screens to cache food in private; also, it had been suggested that they may rely on gaze cues to detect hidden food. However, in an object-choice task, ravens failed to do so, and their competitive lifestyle may have prevented them from relying on these cues. Here we tested closely related and cooperative rooks. Food was hidden in one of two cups and the experimenter gazed at the baited cup. In a second experiment, we aimed to increase the birds’ motivation to choose correctly by increasing the investment needed to obtain the reward. To do so, the birds had to pull on a string to obtain the cup. Here, the birds as a group tended to rely on gaze cues. In addition, individual birds quickly learned to use the cue in both experiments. Although rooks may not use gaze cues to find hidden food spontaneously, they may quickly learn to do so.
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Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
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ISSN 0376-6357 ISBN Medium
Area Expedition Conference (up)
Notes Approved no
Call Number Equine Behaviour @ team @ Serial 5420
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Author Watanabe, N.M.; Stahlman, W.D.; Blaisdell, A.P.; Garlick, D.; Fast, C.D.; Blumstein, D.T.
Title Quantifying personality in the terrestrial hermit crab: Different measures, different inferences Type Journal Article
Year 2012 Publication Behavioural Processes Abbreviated Journal Behav. Process.
Volume 91 Issue 2 Pages 133-140
Keywords Animal personality; Behavioral syndrome; Hermit crabs
Abstract There is much interest in studying animal personalities but considerable debate as to how to define and evaluate them. We assessed the utility of one proposed framework while studying personality in terrestrial hermit crabs (Coenobita clypeatus). We recorded the latency of individuals to emerge from their shells over multiple trials in four unique manipulations. We used the specific testing situations within these manipulations to define two temperament categories (shyness-boldness and exploration-avoidance). Our results identified individual behavioral consistency (i.e., personality) across repeated trials of the same situations, within both categories. Additionally, we found correlations between behaviors across contexts (traits) that suggested that the crabs had behavioral syndromes. While we found some correlations between behaviors that are supposed to measure the same temperament trait, these correlations were not inevitable. Furthermore, a principal component analysis (PCA) of our data revealed new relationships between behaviors and provided the foundation for an alternate interpretation: measured behaviors may be situation-specific, and may not reflect general personality traits at all. These results suggest that more attention must be placed on how we infer personalities from standardized methods, and that we must be careful to not force our data to fit our frameworks.
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Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0376-6357 ISBN Medium
Area Expedition Conference (up)
Notes Approved no
Call Number Equine Behaviour @ team @ Serial 5620
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Author Hanggi, E.B.; Ingersoll, J.F.
Title Lateral vision in horses: A behavioral investigation Type Journal Article
Year 2012 Publication Behavioural Processes Abbreviated Journal Behav. Process.
Volume 91 Issue 1 Pages 70-76
Keywords Lateral vision; Horse; Equine; Stimulus discrimination; Field of view; Peripheral
Abstract This study investigated lateral vision in horses (Equus caballus) for the first time from a behavioral point of view. Three horses were tested using a novel experimental design to determine the range of their lateral and caudolateral vision with respect to stimulus detection and discrimination. Real-life stimuli were presented along a curvilinear wall in one of four different positions (A, B, C, D) and one of two height locations (Top, Bottom) on both sides of the horse. To test for stimulus detection, the correct stimulus was paired against a control; for stimulus discrimination, the correct stimulus was paired against another object. To indicate that the correct stimulus was detected or discriminated, the horses pushed one of two paddles. All horses scored significantly above chance on stimulus detection trials regardless of stimulus position or location. They also accurately discriminated between stimuli when objects appeared in positions A, B, and C for the top or bottom locations; however, they failed to discriminate these stimuli at position D. This study supports physiological descriptions of the equine eye and provides new behavioral data showing that horses can detect the appearance of objects within an almost fully encompassing circle and are able to identify objects within most but not all of their panoramic field of view.
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Language Summary Language Original Title
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ISSN 0376-6357 ISBN Medium
Area Expedition Conference (up)
Notes Approved no
Call Number Equine Behaviour @ team @ Serial 5621
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Author Krueger, K.; Flauger, B.; Farmer, K.; Hemelrijk, C.
Title Movement initiation in groups of feral horses Type Journal Article
Year 2014 Publication Behavioural Processes Abbreviated Journal Behav. Process.
Volume 103 Issue Pages 91-101
Keywords Horse; Equus ferus caballus; Distributed leadership; Herding; Departure; Rank
Abstract Abstract Herds of ungulates, flocks of birds, swarms of insects and schools of fish move in coordinated groups. Computer models show that only one or very few animals are needed to initiate and direct movement. To investigate initiation mechanisms further, we studied two ways in which movement can be initiated in feral horses: herding, and departure from the group. We examined traits affecting the likelihood of a horse initiating movement i.e. social rank, affiliative relationships, spatial position, and social network. We also investigated whether group members join a movement in dominance rank order. Our results show that whereas herding is exclusive to alpha males, any group member may initiate movement by departure. Social bonds, the number of animals interacted with, and the spatial position were not significantly associated with movement initiation. We did not find movement initiation by departure to be exclusive to any type of individual. Instead we find evidence for a limited form of distributed leadership, with higher ranking animals being followed more often.
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ISSN 0376-6357 ISBN Medium
Area Expedition Conference (up)
Notes Approved no
Call Number Equine Behaviour @ team @ Serial 5738
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Author Brubaker, L.; Udell, M.A.R.
Title Cognition and learning in horses (Equus caballus): What we know and why we should ask more Type Journal Article
Year 2016 Publication Behavioural Processes Abbreviated Journal
Volume 126 Issue Pages 121-131
Keywords Horse behaviour; Horse welfare; Learning; Social cognition
Abstract Abstract Horses (Equus caballus) have a rich history in their relationship with humans. Across different cultures and eras they have been utilized for work, show, cultural rituals, consumption, therapy, and companionship and continue to serve in many of these roles today. As one of the most commonly trained domestic animals, understanding how horses learn and how their relationship with humans and other horses impacts their ability to learn has implications for horse welfare, training, husbandry and management. Given that unlike dogs and cats, domesticated horses have evolved from prey animals, the horse-human relationship poses interesting and unique scientific questions of theoretical value. There is still much to be learned about the cognition and behaviour of horses from a scientific perspective. This review explores current research within three related areas of horse cognition: human-horse interactions, social learning and independent learning in horses. Research on these topics is summarized and suggestions for future research are provided.
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Language Summary Language Original Title
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ISSN 0376-6357 ISBN Medium
Area Expedition Conference (up)
Notes Approved no
Call Number Equine Behaviour @ team @ Serial 6021
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Author Rochais, C.; Henry, S.; Fureix, C.; Hausberger, M.
Title Investigating attentional processes in depressive-like domestic horses (Equus caballus) Type Journal Article
Year 2016 Publication Behavioural Processes Abbreviated Journal
Volume 124 Issue Pages 93-96
Keywords Horses; Attention; Cognition; Welfare; Depression
Abstract Abstract Some captive/domestic animals respond to confinement by becoming inactive and unresponsive to external stimuli. Human inactivity is one of the behavioural markers of clinical depression, a mental disorder diagnosed by the co-occurrence of symptoms including deficit in selective attention. Some riding horses display ‘withdrawn’ states of inactivity and low responsiveness to stimuli that resemble the reduced engagement with their environment of some depressed patients. We hypothesized that ‘withdrawn’ horses experience a depressive-like state and evaluated their level of attention by confronting them with auditory stimuli. Five novel auditory stimuli were broadcasted to 27 horses, including 12 ‘withdrawn’ horses, for 5 days. The horses’ reactions and durations of attention were recorded. Non-withdrawn horses reacted more and their attention lasted longer than that of withdrawn horses on the first day, but their durations of attention decreased over days, but those of withdrawn horses remained stable. These results suggest that the withdrawn horses’ selective attention is altered, adding to already evidenced common features between this horses’ state and human depression.
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Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0376-6357 ISBN Medium
Area Expedition Conference (up)
Notes Approved no
Call Number Equine Behaviour @ team @ Serial 6023
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Author Siniscalchi, M.; Padalino, B.; Lusito, R.; Quaranta, A.
Title Is the left forelimb preference indicative of a stressful situation in horses? Type Journal Article
Year 2014 Publication Behavioural Processes Abbreviated Journal Behav. Process.
Volume 107 Issue Pages 61-67
Keywords Animal welfare; Ethology; Horse; Limb preference; Physiology
Abstract Abstract Evidence for behavioural and brain lateralisation is now widespread among the animal kingdom; lateralisation of limb use (pawedness) occurs in several mammals including both feral and domestic horses. We investigated limb preferences in 14 Quarter Horse during different motor tasks (walking, stepping on and off a step, truck loading and unloading). Population lateralisation was observed in two tasks: horses preferentially used their left forelimb during truck loading and stepping off a step. The results also revealed that horses showed higher scores for anxious behaviours during truck loading suggesting that the use of the left forelimb in this task may reflect the main role of the right hemisphere in control of behaviour during stressful situation.
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Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
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ISSN 0376-6357 ISBN Medium
Area Expedition Conference (up)
Notes Approved no
Call Number Equine Behaviour @ team @ Serial 6041
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Author Galef, B.G.
Title Imitation and local enhancement: Detrimental effects of consensus definitions on analyses of social learning in animals Type Journal Article
Year 2013 Publication Behavioural Processes Abbreviated Journal
Volume 100 Issue Pages 123-130
Keywords Imitation; Local enhancement; Emulation; Copying; Culture; Tradition
Abstract Development of a widely accepted vocabulary referring to various types of social learning has made important contributions to decades of progress in analyzing the role of socially acquired information in the development of behavioral repertoires. It is argued here that emergence of a consensus vocabulary, while facilitating both communication and research, has also unnecessarily restricted research on social learning. The article has two parts. In the first, I propose that Thorndike, 1898, Thorndike, 1911 definition of imitation as “learning to do an act from seeing it done” has unduly restricted studies of the behavioral processes involved in the propagation of behavior. In part 2, I consider the possibility that success in labeling social learning processes believed to be less cognitively demanding than imitation (e.g. local and stimulus enhancement, social facilitation, etc.) has been mistaken for understanding of those processes, although essentially nothing is known of their stimulus control, development, phylogeny or substrate either behavioral or physiological.
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Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0376-6357 ISBN Medium
Area Expedition Conference (up)
Notes Approved no
Call Number Equine Behaviour @ team @ Serial 6419
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Author Griffin, A.S.; Guez, D.
Title Innovation and problem solving: A review of common mechanisms Type Journal Article
Year 2014 Publication Behavioural Processes Abbreviated Journal Behav. Process.
Volume 109 Issue Pages 121-134
Keywords Behavioural flexibility; Cognition; Innovation; Problem solving
Abstract Behavioural innovations have become central to our thinking about how animals adjust to changing environments. It is now well established that animals vary in their ability to innovate, but understanding why remains a challenge. This is because innovations are rare, so studying innovation requires alternative experimental assays that create opportunities for animals to express their ability to invent new behaviours, or use pre-existing ones in new contexts. Problem solving of extractive foraging tasks has been put forward as a suitable experimental assay. We review the rapidly expanding literature on problem solving of extractive foraging tasks in order to better understand to what extent the processes underpinning problem solving, and the factors influencing problem solving, are in line with those predicted, and found, to underpin and influence innovation in the wild. Our aim is to determine whether problem solving can be used as an experimental proxy of innovation. We find that in most respects, problem solving is determined by the same underpinning mechanisms, and is influenced by the same factors, as those predicted to underpin, and to influence, innovation. We conclude that problem solving is a valid experimental assay for studying innovation, propose a conceptual model of problem solving in which motor diversity plays a more central role than has been considered to date, and provide recommendations for future research using problem solving to investigate innovation. This article is part of a Special Issue entitled: Cognition in the wild.
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Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0376-6357 ISBN Medium
Area Expedition Conference (up)
Notes Approved no
Call Number Equine Behaviour @ team @ Serial 6556
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