| Records |
| 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 |
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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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0376-6357 |
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Equine Behaviour @ team @ |
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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 |
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| Volume |
100 |
Issue |
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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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0376-6357 |
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Equine Behaviour @ team @ |
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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 |
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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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0376-6357 |
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Equine Behaviour @ team @ |
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6556 |
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| Author |
Giljov, A.; Karenina, K. |
| Title |
Differential roles of the right and left brain hemispheres in the social interactions of a free-ranging ungulate |
Type |
Journal Article |
| Year |
2019 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
| Volume |
168 |
Issue |
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Pages |
103959 |
| Keywords |
Laterality; Hemispheric specialization; Brain asymmetry; Eye preference; Ungulate; Bovid |
| Abstract |
Despite the abundant empirical evidence on lateralized social behaviours, a clear understanding of the relative roles of two brain hemispheres in social processing is still lacking. This study investigated visual lateralization in social interactions of free-ranging European bison (Bison bonasus). The bison were more likely to display aggressive responses (such as fight and side hit), when they viewed the conspecific with the right visual field, implicating the left brain hemisphere. In contrast, the responses associated with positive social interactions (female-to-calf bonding, calf-to-female approach, suckling) or aggression inhibition (fight termination) occurred more likely when the left visual field was in use, indicating the right hemisphere advantage. The results do not support either assumptions of right-hemisphere dominance for control of various social functions or hypotheses about simple positive (approach) versus negative (withdrawal) distinction between the hemispheric roles. The discrepancy between the studies suggests that in animals, the relative roles of the hemispheres in social processing may be determined by a fine balance of emotions and motivations associated with the particular social reaction difficult to categorize for a human investigator. Our findings highlight the involvement of both brain hemispheres in the control of social behaviour. |
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0376-6357 |
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Equine Behaviour @ team @ |
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6587 |
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da Cruz, A.B.; Hirata, S.; dos Santos, M.E.; Mendonça, R.S. |
| Title |
Show me your best side: Lateralization of social and resting behaviors in feral horses |
Type |
Journal Article |
| Year |
2023 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
| Volume |
206 |
Issue |
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Pages |
104839 |
| Keywords |
Cerebral lateralization; Drone technology; ; Hemispheric specialization; Horses; Social interactions |
| Abstract |
Growing evidence shows a variety of sensorial and motor asymmetries in social and non-social interactions in various species, indicating a lateralized processing of information by the brain. Using digital video cameras on tripods and drones, this study investigated lateralization in frequency and duration of social behavior patterns, in affiliative, agonistic, and resting contexts, in a feral population of horses (Equus ferus caballus) in Northern Portugal, consisting of 37 individuals organized in eight harem groups. Affiliative interactions (including grooming) were more often performed, and lasted longer, when recipients were positioned to the right side. In recumbent resting (animals lying down) episodes on the left side lasted longer. Our results of an affiliative behavior having a right side tendency, provide partial support to the valence-specific hypothesis of Ahern and Schwartz (1979) – left hemisphere dominance for positive affect, affiliative behaviors. Longer recumbent resting episodes on the left side may be due to synchronization. However, in both instances it is discussed how lateralization may be context dependent. Investigating the position asymmetries of social behaviors in feral equids will contribute to a better understanding of differential lateralization and hemispheric specialization from the ecological and evolutionary perspectives. |
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0376-6357 |
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Equine Behaviour @ team @ |
Serial |
6697 |
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| Author |
da Cruz, A.B.; Hirata, S.; dos Santos, M.E.; Mendonça, R.S. |
| Title |
Show me your best side: Lateralization of social and resting behaviors in feral horses |
Type |
Journal Article |
| Year |
2023 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
| Volume |
206 |
Issue |
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Pages |
104839 |
| Keywords |
Cerebral lateralization; Drone technology; ; Hemispheric specialization; Horses; Social interactions |
| Abstract |
Growing evidence shows a variety of sensorial and motor asymmetries in social and non-social interactions in various species, indicating a lateralized processing of information by the brain. Using digital video cameras on tripods and drones, this study investigated lateralization in frequency and duration of social behavior patterns, in affiliative, agonistic, and resting contexts, in a feral population of horses (Equus ferus caballus) in Northern Portugal, consisting of 37 individuals organized in eight harem groups. Affiliative interactions (including grooming) were more often performed, and lasted longer, when recipients were positioned to the right side. In recumbent resting (animals lying down) episodes on the left side lasted longer. Our results of an affiliative behavior having a right side tendency, provide partial support to the valence-specific hypothesis of Ahern and Schwartz (1979) – left hemisphere dominance for positive affect, affiliative behaviors. Longer recumbent resting episodes on the left side may be due to synchronization. However, in both instances it is discussed how lateralization may be context dependent. Investigating the position asymmetries of social behaviors in feral equids will contribute to a better understanding of differential lateralization and hemispheric specialization from the ecological and evolutionary perspectives. |
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0376-6357 |
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Equine Behaviour @ team @ |
Serial |
6711 |
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| Author |
Abeyesinghe, S.M.; Nicol, C.J.; Wathes. C.M.; Randall, J.M. |
| Title |
Development of a raceway method to assess aversion of domestic fowl to concurrent stressors |
Type |
Journal Article |
| Year |
2001 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
| Volume |
56 |
Issue |
3 |
Pages |
175-194 |
| Keywords |
previous termConcurrent stressors; Aversion; Domestic fowlnext term; Transport; Vibration; Hyperthermia |
| Abstract |
The requirement for assessing the effects of stressor combinations in improving the welfare of animals has not been widely recognised. Knowledge of the effects of concurrent stressors is needed to improve environments such as transport, where animals are presented with many simultaneous challenges. However, no method for measuring the effects of different stressors with a common unit is currently available. A locomotor passive avoidance method was developed as a common currency measure of the aversion of domestic fowl to concurrent stressors, using vibrational and thermal stressors as an exemplar. Juvenile fowl, fasted overnight, were trained to run a raceway into a goal-box for small food rewards (FR1). When running consistently, the reinforcement schedule was superimposed with a FR5 treatment schedule (60 min confinement in the goal-box with either a control of no other stressors [N] or concurrent vibration and thermal stressors [VT]). Subsequent latency to return to the goal-box was recorded as a measure of aversion. The factors affecting bird response were addressed in a series of experiments to optimise the method and clarify interpretation of results. Pre-feeding (20% ration 2 h prior to testing) did not affect response, but increasing the number of treatment presentations facilitated learning and increased method sensitivity. Treatment responses were consistent across experiments; overall VT was avoided (P<0.001), but N was not. However, there was large individual variation in response to VT. A final experiment indicated that, given a visual discriminatory cue, birds were capable of learning the required association between entering the goal-box and receiving the treatment, suggesting that the delay responses were due to aversion rather than the immediate impact of treatment on ability to respond. Further work is required to test the singular stressors, but the method retains common currency potential for assessing aversion to multiple stressors. |
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Bio-Engineering Division, Silsoe Research Institute, Wrest Park, Silsoe, MK45 4HS, Bedford, UK |
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0376-6357 |
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| Notes |
PMID:11738510 |
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refbase @ user @ |
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85 |
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Zentall, T.R. |
| Title |
Temporal discrimination learning by pigeons |
Type |
Journal Article |
| Year |
2007 |
Publication |
Behavioural processes |
Abbreviated Journal |
Behav. Process. |
| Volume |
74 |
Issue |
2 |
Pages |
286-292 |
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Memory for time by animals appears to undergo a systematic shortening. This so-called choose-short effect can be seen in a conditional temporal discrimination when a delay is inserted between the sample and comparison stimuli. We have proposed that this temporal shortening may result from a procedural artifact in which the delay appears similar to the intertrial interval and thus, produces an inadvertent ambiguity or 'instructional failure'. When this ambiguity is avoided by distinguishing the intertrial interval from the delay, as well as the samples from the delay, the temporal shortening effect and other asymmetries often disappear. By avoiding artifacts that can lead to a misinterpretation of results, we may understand better how animals represent time. An alternative procedure for studying temporal discriminations is with the psychophysical bisection procedure in which following conditional discrimination training, intermediate durations are presented and the point of subjective equality is determined. Research using the bisection procedure has shown that pigeons represent temporal durations not only as their absolute value but also relative to durations from which they must be discriminated. Using this procedure, we have also found that time passes subjectively slower when animals are required to respond to the to-be-timed stimulus. |
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Department of Psychology, University of Kentucky, Lexington, KY 40506, United States. zentall@uky.edu |
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0376-6357 |
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PMID:17110057 |
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refbase @ user @ |
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216 |
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Zentall, T.R. |
| Title |
Mental time travel in animals: a challenging question |
Type |
Journal Article |
| Year |
2006 |
Publication |
Behavioural processes |
Abbreviated Journal |
Behav. Process. |
| Volume |
72 |
Issue |
2 |
Pages |
173-183 |
| Keywords |
Animals; *Behavior, Animal; Columbidae; Concept Formation; Conditioning, Operant; *Imagination; *Memory; Mental Recall; Planning Techniques; Rats; *Time Perception; Transfer (Psychology) |
| Abstract |
Humans have the ability to mentally recreate past events (using episodic memory) and imagine future events (by planning). The best evidence for such mental time travel is personal and thus subjective. For this reason, it is particularly difficult to study such behavior in animals. There is some indirect evidence, however, that animals have both episodic memory and the ability to plan for the future. When unexpectedly asked to do so, animals can report about their recent past experiences (episodic memory) and they also appear to be able to use the anticipation of a future event as the basis for a present action (planning). Thus, the ability to imagine past and future events may not be uniquely human. |
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Department of Psychology, University of Kentucky, Lexington, KY 40506-0044, USA. zentall@uky.edu |
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0376-6357 |
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PMID:16466863 |
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refbase @ user @ |
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218 |
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Zentall, T.R. |
| Title |
Timing, memory for intervals, and memory for untimed stimuli: The role of instructional ambiguity |
Type |
Journal Article |
| Year |
2006 |
Publication |
Behavioural processes |
Abbreviated Journal |
Behav. Process. |
| Volume |
71 |
Issue |
2-3 |
Pages |
88-97 |
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| Abstract |
Theories of animal timing have had to account for findings that the memory for the duration of a timed interval appears to be dramatically shorted within a short time of its termination. This finding has led to the subjective shortening hypothesis and it has been proposed to account for the poor memory that animals appear to have for the initial portion of a timed interval when a gap is inserted in the to-be-timed signal. It has also been proposed to account for the poor memory for a relatively long interval that has been discriminated from a shorter interval. I suggest here a simpler account in which ambiguity between the gap or retention interval and the intertrial interval results in resetting the clock, rather than forgetting the interval. The ambiguity hypothesis, together with a signal salience mechanism that determines how quickly the clock is reset at the start of the intertrial interval can account for the results of the reported timing experiments that have used the peak procedure. Furthermore, instructional ambiguity rather than memory loss may account for the results of many animal memory experiments that do not involve memory for time. |
| Address |
Department of Psychology, University of Kentucky, 202B Kastle Hall, Lexington, KY 40506-0044, USA. zentall@uky.edu |
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0376-6357 |
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PMID:16406373 |
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refbase @ user @ |
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219 |
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