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Author Gärdenfors P. doi  openurl
  Title Cued and detached representations in animal cognition Type Journal Article
  Year 1995 Publication Behavioural Processes Abbreviated Journal Behav. Process.  
  Volume 35 Issue (up) Pages 263-273  
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  Call Number refbase @ user @ Serial 3454  
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Author Beer C.G. doi  openurl
  Title Trial and error in the evolution of cognition Type Journal Article
  Year 1995 Publication Behavioural Processes Abbreviated Journal Behav. Process.  
  Volume 35 Issue (up) Pages 215-224  
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  Call Number refbase @ user @ Serial 3455  
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Author Sutton J.E.; Roberts W.A. doi  openurl
  Title Do pigeons show incidental timing? Some experiments and a suggested hierarchical framework for the study of attention in animal cognition Type Journal Article
  Year 1998 Publication Behavioural Processes Abbreviated Journal Behav. Process.  
  Volume 44 Issue (up) Pages 263-275  
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  Call Number refbase @ user @ Serial 3463  
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Author Mercado E.; Killebrew D.A.; Pack A.A.; Macha I.V.B.; Herman L.M. doi  openurl
  Title Generalization of 'same-different' classification abilities in bottlenosed dolphins Type Journal Article
  Year 2000 Publication Behavioural Processes Abbreviated Journal Behav. Process.  
  Volume 50 Issue (up) Pages 79-94  
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  Call Number refbase @ user @ Serial 3479  
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Author Krueger, K.; Schneider, G.; Flauger, B.; Heinze, J. doi  openurl
  Title Context-dependent third-party intervention in agonistic encounters of male Przewalski horses Type Journal Article
  Year 2015 Publication Behavioural Processes Abbreviated Journal Behav. Process.  
  Volume 121 Issue (up) Pages 54-62  
  Keywords Equus ferus przewalskii; Group conflict; Rank orders; Social bonds; Social control; Third-party intervention  
  Abstract Abstract One mechanism to resolve conflict among group members is third party intervention, for which several functions, such as kin protection, alliance formation, and the promotion of group cohesion have been proposed. Still, empirical research on the function of intervention behaviour is rare. We studied 40 cases of intervention behaviour in a field study on 13 semi-wild bachelor horses (Equus ferus przewalskii) in (a) standard social situations, and (b) when new horses joined the group (i.e. introductions). Only interventions in agonistic encounters were analysed. Eight of 13 animals directed intervention behaviour toward threatening animal in agonistic encounters of group members. One stallion was particularly active. The stallions did not intervene to support former group mates or kin and interventions were not reciprocated. In introduction situations and in standard social situations, the interveners supported animals which were lower in rank, but targeted, threatening animals of comparable social rank. After introductions, stallions received more affiliative behaviour from animals they supported and thus appeared to intervene for alliance formation. In standard social situations, interveners did not receive more affiliative behaviour from animals they supported and may primarily have intervened to promote group cohesion and to reduce social disruption within the group.  
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  Call Number Equine Behaviour @ team @ Serial 5925  
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Author Beaugrand, J.P doi  openurl
  Title Relative importance of initial individual differences, agonistic experience, and assessment accuracy during hierarchy formation: a simulation study Type Journal Article
  Year 1997 Publication Behavioural Processes Abbreviated Journal Behav. Process.  
  Volume 41 Issue (up) Pages 177-192  
  Keywords Dominance; Hierarchy formation; RHP; Agonistic experience; Assessment; Self-organization; Simulation  
  Abstract This simulation study explores some conditions leading to transitivity within dominance orders. Combinations of three parameters were varied to study their consequences upon hierarchy formation and upon the degree of linearity of resultant structures. The factors studied were: (1) the importance of initial resource holding potentials (RHPs); (2) changes brought in RHPs by successive victories and defeats; and (3) accuracy of RHP assessment made by opponents. Results show that initial differences in RHP always lead to perfectly transitive chains whose rank order reflects the importance of initial differences. Even when simulated animals make important errors while assessing each other during round robin tournaments, emerging dominance structures are perfectly linear and ranks obtained in the structure are highly correlated with initial values in RHPs. Moreover, accumulated experiences of victory and/or defeat alone always lead to perfectly linear hierarchies. Their combination with initial individual differences in RHP led to the same conclusion. Even when assessment was far from being perfect, not only perfect chains were formed but initial values in RHPs significantly influenced rank order when the contribution of victory and defeat to RHP was relatively unimportant. The higher the importance of victory and defeat to RHP as compared to that of initial RHP values, the lower was the correlation between initial RHP values and the ranks order reached by individuals in the resultant hierarchies. In general also, the lower the variation within initial RHPs, the lower was the correlation between initial RHPs and ranks in the hierarchy. At a given level of initial RHP dispersion, increasing the contribution of victory and defeat to RHP diminished the correlation between initial RHP values and obtained ranks. In addition, inaccurate assessment reduced the overall correlation, especially when dispersion of initial RHP values was low and the contribution of victory and defeat relatively unimportant. These results shed some light on the controversy about the respective roles of initial individual attributes and that of patterns of resolution in the formation of animal hierarchies. We present the emergence of social order within closed systems as those simulated here as a case of self-organization.  
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  Call Number Equine Behaviour @ team @ Serial 4290  
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Author Briard, L.; Deneubourg, J.-L.; Petit, O. url  doi
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  Title How stallions influence the dynamic of collective movements in two groups of domestic horses, from departure to arrival Type Journal Article
  Year 2017 Publication Behavioural Processes Abbreviated Journal Behav. Process.  
  Volume 142 Issue (up) Pages 56-63  
  Keywords consensus; herding; polygyny; personal leadership; shared decision  
  Abstract Abstract The role of leader in polygynous species has been solely attributed to the male for some time, but recent studies shown decision making to be distributed within the group. However, the specific reproductive strategy and behavioural repertoire of males in polygynous species such as horses may mean that these individuals still have the potential to play a specific role during decision-making. To investigate this subject, we thoroughly studied the behaviour of two domestic stallions during collective movements of their group. We found that they initiated rarely and sometimes failed to recruit the entire group. When departing as followers, they did not accelerate the joining process. Both stallions preferentially occupied the rear position and exhibited numerous monitoring behaviours. Herding behaviours were performed by only one stallion and mostly occurred outside movement context. Finally, we removed this herding stallion from its group to evaluate how the group dynamic changed. As a result, half of the collective movements were five times slower and mares were more dispersed in comparison when the stallion was in the group. Overall, our results suggest that, the two stallions maintained their role of group monitors from departure to arrival. Their influence on the movement dynamic was indirect and did not play a specific role in the process of decision making.  
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  Call Number Equine Behaviour @ team @ Serial 6151  
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Author Zucca, P.; Cerri, F.; Carluccio, A.; Baciadonna, L. url  doi
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  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 (up) 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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  Call Number Equine Behaviour @ team @ Serial 5400  
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Author Brubaker, L.; Udell, M.A.R. url  doi
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  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 (up) 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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  Call Number Equine Behaviour @ team @ Serial 6021  
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Author Rochais, C.; Henry, S.; Fureix, C.; Hausberger, M. url  doi
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  Title Investigating attentional processes in depressive-like domestic horses (Equus caballus) Type Journal Article
  Year 2016 Publication Behavioural Processes Abbreviated Journal  
  Volume 124 Issue (up) 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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  Call Number Equine Behaviour @ team @ Serial 6023  
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