| Records |
| Author |
Sighieri, C.; Tedeschi, D.; De Andreis, C.; Petri, L.; Baragli, P. |
| Title |
Behaviour patterns of horses can be used to establish a dominantsubordinate relationship between man and horse |
Type |
Journal Article |
| Year |
2003 |
Publication |
Animal Welfare |
Abbreviated Journal |
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Volume  |
12 |
Issue |
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Pages |
705-708 |
| Keywords |
ANIMAL WELFARE; BEHAVIOUR PATTERNS; DOMINANCE; UNHANDLED HORSE |
| Abstract |
This paper describes how man can enter the social hierarchy of the horse by mimicking the behaviour and stance it uses to establish dominance. A herd is organised according to a dominance hierarchy established by means of ritualised conflict. Dominance relationships are formed through these confrontations: one horse gains the dominant role and others identify themselves as subordinates. This study was conducted using five females of the Haflinger breed, totally unaccustomed to human contact, from a free-range breeding farm. The study methods were based on the three elements fundamental to the equilibrium of the herd: flight, herd instinct and hierarchy. The trainer-horse relationship was established in three phases: retreat, approach and association. At the end of the training sessions, all of the horses were able to respond correctly to the trainer. These observations suggest that it is possible to manage unhandled horses without coercion by mimicking their behaviour patterns. |
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| Call Number |
Equine Behaviour @ team @ |
Serial |
4089 |
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| Author |
Sighieri, C.; Tedeschi, D.; De Andreis, C.; Petri, L.; Baragli, P. |
| Title |
Behaviour Patterns of Horses Can be Used to Establish a Dominant-Subordinate Relationship Between Man and Horse |
Type |
Journal Article |
| Year |
2003 |
Publication |
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Abbreviated Journal |
Animal Welfare |
| Volume |
12 |
Issue |
4 |
Pages |
705-708 |
| Keywords |
animal welfare; behaviour patterns; dominance; unhandled horse |
| Abstract |
This paper describes how man can enter the social hierarchy of the horse by mimicking the behaviour and stance it uses to establish dominance. A herd is organised according to a dominance hierarchy established by means of ritualised conflict. Dominance relationships are formed through these confrontations: one horse gains the dominant role and others identify themselves as subordinates. This study was conducted using five females of the Haflinger breed, totally unaccustomed to human contact, from a free-range breeding farm. The study methods were based on the three elements fundamental to the equilibrium of the herd: flight, herd instinct and hierarchy. The trainer-horse relationship was established in three phases: retreat, approach and association. At the end of the training sessions, all of the horses were able to respond correctly to the trainer. These observations suggest that it is possible to manage unhandled horses without coercion by mimicking their behaviour patterns. |
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Cambridge University Press |
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Edition |
2023/01/11 |
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0962-7286 |
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no |
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Equine Behaviour @ team @ |
Serial |
6713 |
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| Author |
Russell, L.A. |
| Title |
Decoding Equine Emotions |
Type |
Journal Article |
| Year |
2003 |
Publication |
Society and Animals |
Abbreviated Journal |
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| Volume |
11 |
Issue |
3 |
Pages |
265-266 |
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Equine Behaviour @ team @ |
Serial |
4383 |
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| Author |
Clement, T.S.; Zentall, T.R. |
| Title |
Choice based on exclusion in pigeons |
Type |
Journal Article |
| Year |
2003 |
Publication |
Psychonomic bulletin & review |
Abbreviated Journal |
Psychon Bull Rev |
| Volume |
10 |
Issue |
4 |
Pages |
959-964 |
| Keywords |
Animals; Appetitive Behavior; *Association Learning; *Choice Behavior; *Color Perception; Columbidae; *Discrimination Learning; Memory, Short-Term; *Problem Solving; Psychomotor Performance; Reaction Time; Transfer (Psychology) |
| Abstract |
When humans acquire a conditional discrimination and are given a novel-sample-comparison choice, they often reject a comparison known to be associated with a different sample and choose the alternative comparison by default (or by exclusion). In Experiment 1, we found that if, following matching training, we replaced both of the samples, acquisition took five times longer than if we replaced only one of the samples. Apparently, the opportunity to reject one of the comparisons facilitated the association of the other sample with the remaining comparison. In Experiment 2, we first trained pigeons to treat two samples differently (to associate Sample A with Comparison 1 and Sample B with Comparison 2) and then trained them to associate one of those samples with a new comparison (e.g., Sample A with Comparison 3) and to associate a novel sample (Sample C) with a different, new comparison (Comparison 4). When Sample B then replaced Sample C, the pigeons showed a significant tendency to choose Comparison 4 over Comparison 3. Thus, when given the opportunity, pigeons will choose by exclusion. |
| Address |
University of Kentucky, Lexington, Kentucky, USA |
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English |
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Edition |
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| ISSN |
1069-9384 |
ISBN |
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Conference |
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| Notes |
PMID:15000545 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
233 |
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| Author |
Zentall, T.R.; Clement, T.S.; Weaver, J.E. |
| Title |
Symmetry training in pigeons can produce functional equivalences |
Type |
Journal Article |
| Year |
2003 |
Publication |
Psychonomic bulletin & review |
Abbreviated Journal |
Psychon Bull Rev |
| Volume |
10 |
Issue |
2 |
Pages |
387-391 |
| Keywords |
Animals; Association; Behavior, Animal; Columbidae; Conditioning (Psychology)/*physiology; Teaching/*methods; *Transfer (Psychology) |
| Abstract |
Functional stimulus equivalence has been demonstrated using a transfer of training design with matching-to-sample training in which two sample stimuli are associated with the same comparison stimulus (A-B, C-B; many-to-one matching). Equivalence is shown by training a new association (A-D) and demonstrating the presence of an emergent relation (C-D). In the present experiment, we show that symmetry training, in which a bidirectional association is trained between two stimuli (A-B, B-A, using successive stimulus presentations followed by reinforcement), can also produce functional equivalence using a transfer of training design (i.e., train B-C, test A-C). The results suggest that training pigeons in the substitutability of two stimuli may be sufficient to produce functional stimulus equivalence between them. The results also have implications for the development of an emergent transitive relation, because training on A-B and B-C relations results in the emergence of an untrained A-C relation, if B-A training also is provided. |
| Address |
Department of Psychology, University of Kentucky, Lexington, Kentucky 40506-0044, USA. zentall@pop.uky.edu |
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English |
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1069-9384 |
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| Notes |
PMID:12921414 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
235 |
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| Author |
Sole, L.M.; Shettleworth, S.J.; Bennett, P.J. |
| Title |
Uncertainty in pigeons |
Type |
Journal Article |
| Year |
2003 |
Publication |
Psychonomic bulletin & review |
Abbreviated Journal |
Psychon Bull Rev |
| Volume |
10 |
Issue |
3 |
Pages |
738-745 |
| Keywords |
Animals; Behavior, Animal; Columbidae; *Decision Making; Reinforcement (Psychology); Reward; Transfer (Psychology); Visual Perception |
| Abstract |
Pigeons classified a display of illuminated pixels on a touchscreen as sparse or dense. Correct responses were reinforced with six food pellets; incorrect responses were unreinforced. On some trials an uncertain response option was available. Pecking it was always reinforced with an intermediate number of pellets. Like monkeys and people in related experiments, the birds chose the uncertain response most often when the stimulus presented was difficult to classify correctly, but in other respects their behavior was not functionally similar to human behavior based on conscious uncertainty or to the behavior of monkeys in comparable experiments. Our data were well described by a signal detection model that assumed that the birds were maximizing perceived reward in a consistent way across all the experimental conditions. |
| Address |
University of Toronto, Toronto, Ontario, Canada |
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English |
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1069-9384 |
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| Notes |
PMID:14620372 |
Approved |
no |
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refbase @ user @ |
Serial |
366 |
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| Author |
Barrett, L.; Henzi, P.; Dunbar, R. |
| Title |
Primate cognition: from 'what now?' to 'what if?' |
Type |
Journal Article |
| Year |
2003 |
Publication |
Trends in Cognitive Sciences |
Abbreviated Journal |
Trends. Cognit. Sci. |
| Volume |
7 |
Issue |
11 |
Pages |
494-497 |
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| Abstract |
The 'social brain' hypothesis has had a major impact on the study of comparative cognition. However, despite a strong sense, gained from both experimental and observational work, that monkeys and apes differ from each other, we are still no closer to understanding exactly how they differ. We hypothesize that the dispersed social systems characteristic of ape societies explains why monkeys and apes should differ cognitively. The increased cognitive control and analogical reasoning ability needed to cope with life in dispersed societies also suggests a possible route for human cognitive evolution. This hypothesis is supported by behavioural and neurobiological data, but we need more of both if we are to fully understand how our primate cousins see the world. |
| Address |
School of Biological Sciences, University of Liverpool, Biosciences Building, Crown St, Liverpool, UK L69 7ZB. louiseb@liv.ac.uk |
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English |
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1364-6613 |
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| Notes |
PMID:14585446 |
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no |
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Serial |
2096 |
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| Author |
Tomasello M.; Call J.; Hare B. |
| Title |
Chimpanzees understand psychological states – the question is which ones and to what extent |
Type |
Journal Article |
| Year |
2003 |
Publication |
Trends in Cognitive Sciences |
Abbreviated Journal |
Trends. Cognit. Sci. |
| Volume |
7 |
Issue |
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Pages |
153-156 |
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no |
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refbase @ user @ |
Serial |
3501 |
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| Author |
Povinelli, D.J.; Vonk, J. |
| Title |
Chimpanzee minds: suspiciously human? |
Type |
Journal Article |
| Year |
2003 |
Publication |
Trends in Cognitive Sciences |
Abbreviated Journal |
Trends. Cognit. Sci. |
| Volume |
7 |
Issue |
4 |
Pages |
157-160 |
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| Abstract |
Chimpanzees undoubtedly form concepts related to the statistical regularities in behavior. But do they also construe such abstractions in terms of mental states – that is, do they possess a [`]theory of mind'? Although both anecdotal and experimental data have been marshaled to support this idea, we show that no explanatory power or economy of expression is gained by such an assumption. We suggest that additional experiments will be unhelpful as long as they continue to rely upon determining whether subjects interpret behavioral invariances in terms of mental states. We propose a paradigm shift to overcome this limitation. |
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1364-6613 |
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no |
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Equine Behaviour @ team @ |
Serial |
4959 |
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| Author |
Kirkpatrick, J.F.; Turner, A. |
| Title |
Absence of effects from immunocontraception on seasonal birth patterns and foal survival among barrier island wild horses |
Type |
Journal Article |
| Year |
2003 |
Publication |
Journal of applied animal welfare science : JAAWS |
Abbreviated Journal |
J Appl Anim Welf Sci |
| Volume |
6 |
Issue |
4 |
Pages |
301-308 |
| Keywords |
Animals; Animals, Newborn; Animals, Wild/*physiology; Birth Rate; Case-Control Studies; Contraception, Immunologic/methods/*veterinary; Egg Proteins/administration & dosage; Female; Horses/*physiology; Maryland/epidemiology; Membrane Glycoproteins/administration & dosage; Population Control; Pregnancy; *Receptors, Cell Surface; *Reproduction; Seasons; Vaccines, Contraceptive/administration & dosage |
| Abstract |
Despite a large body of safety data, concern exists that porcine zonae pellucidae (PZP) immunocontraception--used to manage wild horse populations--may cause out-of-season births with resulting foal mortality. Our study at Assateague, Maryland indicated the effects of immunocontraception on season of birth and foal survival between 1990 and 2002 on wild horses from Assateague Island. Among 91 mares never treated, 69 (75.8%) of foals were born in April, May, and June (in season). Among 77 treated mares, 50 (64.9%) were born in season. Of 29 mares foaling within 1 year after treatment (contraceptive failures), 20 (68.9%) were born in season. Of 48 mares treated for greater than 2 years then withdrawn from treatment, 30 (62.5%) of 48 foals were born in season. There were no significant differences (p <.05) between either treatment group or untreated mares. Survival did not differ significantly among foals born in or out of season or among foals born to treated or untreated mares. Data indicate a lack of effect of PZP contraception on season of birth or foal survival on barrier island habitats. |
| Address |
Science and Conservation Center Zoo Montana, Billings, Montana 59106, USA. jkirkpatrick@montana.net |
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English |
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| ISSN |
1088-8705 |
ISBN |
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| Notes |
PMID:14965784 |
Approved |
no |
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refbase @ user @ |
Serial |
140 |
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