| Records |
| Author |
Urcuioli, P.J.; DeMarse, T.B.; Zentall, T.R. |
| Title |
Transfer across delayed discriminations: II. Differences in the substitutability of initial versus test stimuli |
Type |
Journal Article |
Year  |
1998 |
Publication |
Journal of experimental psychology. Animal behavior processes |
Abbreviated Journal |
J Exp Psychol Anim Behav Process |
| Volume |
24 |
Issue |
1 |
Pages |
47-59 |
| Keywords |
Animals; Behavior, Animal; Columbidae/physiology; Discrimination Learning/*physiology; Pattern Recognition, Visual/*physiology; Reinforcement (Psychology); Retention (Psychology)/physiology |
| Abstract |
In 2 experiments, pigeons were trained on, and then transferred to, delayed simple discriminations in which the initial stimuli signalled reinforcement versus extinction following a retention interval. Experiment 1 showed that discriminative responding on the retention test transferred to novel test stimuli that had appeared in another delayed simple discrimination but not to stimuli having the same reinforcement history off-baseline. By contrast, Experiment 2 showed that performances transferred to novel initial stimuli whether they had been trained on-baseline or off-baseline. These results suggest that the test stimuli in delayed simple discriminations acquire control over responding only in the memory task itself. On the other hand, control by the initial stimuli, if coded as outcome expectancies, does not require such task-specific training. |
| Address |
Department of Psychological Sciences, Purdue University, West Lafayette, Indiana 47907-1364, USA. uche@psych.purdue.edu |
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English |
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| ISSN |
0097-7403 |
ISBN |
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Medium |
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Conference |
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| Notes |
PMID:9438965 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
253 |
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| Author |
Brannon, E.M.; Terrace, H.S. |
| Title |
Ordering of the numerosities 1 to 9 by monkeys |
Type |
Journal Article |
| Year |
1998 |
Publication |
Science (New York, N.Y.) |
Abbreviated Journal |
Science |
| Volume |
282 |
Issue |
5389 |
Pages |
746-749 |
| Keywords |
Animals; *Discrimination (Psychology); Macaca mulatta/*psychology; *Mathematics; *Mental Processes |
| Abstract |
A fundamental question in cognitive science is whether animals can represent numerosity (a property of a stimulus that is defined by the number of discriminable elements it contains) and use numerical representations computationally. Here, it was shown that rhesus monkeys represent the numerosity of visual stimuli and detect their ordinal disparity. Two monkeys were first trained to respond to exemplars of the numerosities 1 to 4 in an ascending numerical order (1 --> 2 --> 3 --> 4). As a control for non-numerical cues, exemplars were varied with respect to size, shape, and color. The monkeys were later tested, without reward, on their ability to order stimulus pairs composed of the novel numerosities 5 to 9. Both monkeys responded in an ascending order to the novel numerosities. These results show that rhesus monkeys represent the numerosities 1 to 9 on an ordinal scale. |
| Address |
Department of Psychology, Columbia University, New York, NY 10027, USA. liz@psych.columbia.edu |
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English |
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Edition |
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| ISSN |
0036-8075 |
ISBN |
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Conference |
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| Notes |
PMID:9784133 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
606 |
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| Author |
Whiten, A. |
| Title |
Imitation of the sequential structure of actions by chimpanzees (Pan troglodytes) |
Type |
Journal Article |
| Year |
1998 |
Publication |
Journal of comparative psychology (Washington, D.C. : 1983) |
Abbreviated Journal |
J Comp Psychol |
| Volume |
112 |
Issue |
3 |
Pages |
270-281 |
| Keywords |
Animals; Appetitive Behavior/physiology; *Ceremonial Behavior; Exploratory Behavior/physiology; Female; Fruit; Imitative Behavior/*physiology; Learning/*physiology; Male; Pan troglodytes/*psychology; Practice (Psychology); Problem Solving/*physiology |
| Abstract |
Imitation was studied experimentally by allowing chimpanzees (Pan troglodytes) to observe alternative patterns of actions for opening a specially designed “artificial fruit.” Like problematic foods primates deal with naturally, with the test fruit several defenses had to be removed to gain access to an edible core, but the sequential order and method of defense removal could be systematically varied. Each subject repeatedly observed 1 of 2 alternative techniques for removing each defense and 1 of 2 alternative sequential patterns of defense removal. Imitation of sequential organization emerged after repeated cycles of demonstration and attempts at opening the fruit. Imitation in chimpanzees may thus have some power to produce cultural convergence, counter to the supposition that individual learning processes corrupt copied actions. Imitation of sequential organization was accompanied by imitation of some aspects of the techniques that made up the sequence. |
| Address |
Scottish Primate Research Group, School of Psychology, University of St. Andrews, Fife, Scotland. a.whiten@st-andrews.ac.uk |
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English |
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Edition |
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| ISSN |
0735-7036 |
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Medium |
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| Notes |
PMID:9770315 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
743 |
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| Author |
Mills, D.S. |
| Title |
Applying learning theory to the management of the horse: the difference between getting it right and getting it wrong |
Type |
Journal Article |
| Year |
1998 |
Publication |
Equine veterinary journal. Supplement |
Abbreviated Journal |
Equine Vet J Suppl |
| Volume |
|
Issue |
27 |
Pages |
44-48 |
| Keywords |
Animals; *Behavior, Animal; Horses/*psychology; *Learning; Reinforcement (Psychology) |
| Abstract |
Horses constantly modify their behaviour as a result of experience. This involves the creation of an association between events or stimuli. The influence of people on the modification and generation of certain behaviour patterns extends beyond the intentional training of the horse. The impact of any action depends on how it is perceived by the horse, rather than the motive of the handler. Negative and positive reinforcement increase the probability of specific behaviours recurring i.e. strengthen the association between events, whereas punishment reduces the probable recurrence of a behaviour without providing specific information about the desired alternative. In this paper the term 'punishers' is used to refer to the physical aids, such as a whip or crop, which may be used to bring about the process of punishment. However, if their application ceases when a specific behaviour occurs they may negatively reinforce that action. Intended 'punishers' may also be rewarding (e.g. for attention seeking behaviour). Therefore, contingency factors (which define the relationship between stimuli, such as the level of reinforcement), contiguity factors (which describe the proximity of events in space or time) and choice of reinforcing stimuli are critical in determining the rate of learning. The many problems associated with the application of punishment in practice lead to confusion by both horse and handler and, possibly, abuse of the former. Most behaviour problems relate to handling and management of the horse and can be avoided or treated with a proper analysis of the factors influencing the behaviour. |
| Address |
De Montfort University Lincoln, School of Agriculture and Horticulture, Caythorpe, Lincs., UK |
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English |
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Conference |
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| Notes |
PMID:10485004 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
845 |
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| Author |
Cooper, J.J. |
| Title |
Comparative learning theory and its application in the training of horses |
Type |
Journal Article |
| Year |
1998 |
Publication |
Equine veterinary journal. Supplement |
Abbreviated Journal |
Equine Vet J Suppl |
| Volume |
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Issue |
27 |
Pages |
39-43 |
| Keywords |
Animals; *Behavior, Animal; Conditioning (Psychology); Horses/*psychology; *Learning; Reinforcement (Psychology) |
| Abstract |
Training can best be explained as a process that occurs through stimulus-response-reinforcement chains, whereby animals are conditioned to associate cues in their environment, with specific behavioural responses and their rewarding consequences. Research into learning in horses has concentrated on their powers of discrimination and on primary positive reinforcement schedules, where the correct response is paired with a desirable consequence such as food. In contrast, a number of other learning processes that are used in training have been widely studied in other species, but have received little scientific investigation in the horse. These include: negative reinforcement, where performance of the correct response is followed by removal of, or decrease in, intensity of a unpleasant stimulus; punishment, where an incorrect response is paired with an undesirable consequence, but without consistent prior warning; secondary conditioning, where a natural primary reinforcer such as food is closely associated with an arbitrary secondary reinforcer such as vocal praise; and variable or partial conditioning, where once the correct response has been learnt, reinforcement is presented according to an intermittent schedule to increase resistance to extinction outside of training. |
| Address |
Department of Zoology, University of Oxford, UK |
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English |
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Conference |
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| Notes |
PMID:10485003 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
846 |
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| Author |
Mills, D.S. |
| Title |
Personality and individual differences in the horse, their significance, use and measurement |
Type |
Journal Article |
| Year |
1998 |
Publication |
Equine Veterinary Journal. Supplement |
Abbreviated Journal |
Equine Vet J Suppl |
| Volume |
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Issue |
27 |
Pages |
10-13 |
| Keywords |
Animals; *Behavior, Animal; Horses/*psychology; Personality |
| Abstract |
The biological diversity of a species gives rise to individual differences in behavioural tendency. Traditionally, this variation has been considered to be of little scientific importance or value, but the description and quantification of the fundamental basis of this variability is relevant to many aspects of equine science. The reliable identification of these features may allow the development of more accurate diagnostic and prognostic indicators for a range of clinical diseases. Biologically based traits also provide a more rational basis for selective management and breeding programmes in which specific behavioural tendencies are sought. Individual differences in behaviour also reflect the range of subjective feelings experienced by animals and therefore need to be understood by those concerned with animal welfare. Psychometric techniques concerned with the assessment of personality may provide a suitable basis for scientific study in this field. Potentially methodologies include: behavioural tests, objective behaviour measures or the quantification of reports from those familiar with the subjects. The assessment of the validity and reliability of the variables measured in these tests is an integral part of their development. Interobserver correlation in an experiment based on the subjective rating of 20 horses with respect to 14 familiar terms used to describe horse personality was generally low. This suggests that, with the exception of the terms 'flighty' and 'sharp', the empirical terminology commonly used to describe horse personality is unreliable. |
| Address |
De Montfort University Lincoln, School of Agriculture and Horticulture, Caythorpe, Lincs, UK |
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English |
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| Notes |
PMID:10484996 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
1932 |
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| Author |
Cooper, J.J.; Mason, G.J. |
| Title |
The identification of abnormal behaviour and behavioural problems in stabled horses and their relationship to horse welfare: a comparative review |
Type |
Journal Article |
| Year |
1998 |
Publication |
Equine Veterinary Journal. Supplement |
Abbreviated Journal |
Equine Vet J Suppl |
| Volume |
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Issue |
27 |
Pages |
5-9 |
| Keywords |
*Animal Welfare; Animals; *Behavior, Animal; Horses/*psychology; *Housing, Animal/standards; *Stereotyped Behavior |
| Abstract |
Many behaviours in domestic animals, such as the 'stable vices' of horses, are treated because they are considered undesirable for economic or cultural reasons, and not because the activity affects the horse's quality of life. The impact of a behaviour on the human reporter is not a function of its impact on the animal performer, and an understanding of the causes and effects of the particular activity is necessary to assess the costs and benefits of treatment. Where the behaviour is a sign of poor welfare, such as an inadequate environment, treatment can best be achieved by removing these underlying causal factors. Pharmacological or physical prevention of a behaviour can be justified only if the behaviour causes harm to the performer or to others. In these cases, prevention of the behaviour without addressing its causes is no cure and may result in its perseverance in a modified form or the disruption of the animal's ability to adapt to its environment. Where the behavioural 'problem' causes no harm and is not related to poor housing, then the education of the reporter, rather than treatment of the performer, may be the best solution. |
| Address |
Department of Zoology, University of Oxford, UK |
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English |
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| Notes |
PMID:10484995 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
1933 |
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| Author |
Aronson, L. |
| Title |
Animal behavior case of the month. Aggression directed toward other horses |
Type |
Journal Article |
| Year |
1998 |
Publication |
Journal of the American Veterinary Medical Association |
Abbreviated Journal |
J Am Vet Med Assoc |
| Volume |
213 |
Issue |
3 |
Pages |
358-359 |
| Keywords |
*Aggression; Animals; *Behavior, Animal; Follow-Up Studies; Horse Diseases/*diagnosis/drug therapy/psychology; Horses/*psychology; Housing, Animal; Hypothyroidism/diagnosis/drug therapy/*veterinary; Male; Physical Examination/veterinary; Thyroxine/blood/therapeutic use |
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| Address |
Department of Surgery, School of Veterinary Medicine, Tufts University, North Grafton, MA 01536, USA |
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English |
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0003-1488 |
ISBN |
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| Notes |
PMID:9702222 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
1935 |
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| Author |
Allen, C. |
| Title |
Assessing animal cognition: ethological and philosophical perspectives |
Type |
Journal Article |
| Year |
1998 |
Publication |
Journal of Animal Science |
Abbreviated Journal |
J. Anim Sci. |
| Volume |
76 |
Issue |
1 |
Pages |
42-47 |
| Keywords |
Agriculture; Animal Welfare; Animals; Animals, Domestic/physiology/*psychology; Behavior, Animal/*physiology; Cognition/*physiology; *Ethology; *Philosophy; Research |
| Abstract |
Developments in the scientific and philosophical study of animal cognition and mentality are of great importance to animal scientists who face continued public scrutiny of the treatment of animals in research and agriculture. Because beliefs about animal minds, animal cognition, and animal consciousness underlie many people's views about the ethical treatment of nonhuman animals, it has become increasingly difficult for animal scientists to avoid these issues. Animal scientists may learn from ethologists who study animal cognition and mentality from an evolutionary and comparative perspective and who are at the forefront of the development of naturalistic and laboratory techniques of observation and experimentation that are capable of revealing the cognitive and mental properties of nonhuman animals. Despite growing acceptance of the ethological study of animal cognition, there are critics who dispute the scientific validity of the field, especially when the topic is animal consciousness. Here, a proper understanding of developments in the philosophy of mind and the philosophy of science can help to place cognitive studies on a firm methodological and philosophical foundation. Ultimately, this is an interdisciplinary task, involving scientists and philosophers. Animal scientists are well-positioned to contribute to the study of animal cognition because they typically have access to a large pool of potential research subjects whose habitats are more controlled than in most field studies while being more natural than most laboratory psychology experiments. Despite some formidable questions remaining for analysis, the prospects for progress in assessing animal cognition are bright. |
| Address |
Department of Philosophy, Texas A&M University, College Station 77843-4237, USA |
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English |
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0021-8812 |
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| Notes |
PMID:9464883 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
2750 |
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| Author |
Jolly, A. |
| Title |
Pair-bonding, female aggression and the evolution of lemur societies |
Type |
Journal Article |
| Year |
1998 |
Publication |
Folia Primatologica; International Journal of Primatology |
Abbreviated Journal |
Folia Primatol (Basel) |
| Volume |
69 Suppl 1 |
Issue |
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Pages |
1-13 |
| Keywords |
*Aggression; Animals; Evolution; Female; Intelligence; Lemur/*psychology; Male; *Pair Bond; Sex Factors; Social Dominance; Strepsirhini/psychology |
| Abstract |
Lemur societies have been described as convergent with those of anthropoids, including Papio-like female-bonded multi-male groups. Recent research, however, shows at least 5 pair-bonded species among the Lemuridae and Indriidae. Three more, Eulemur mongoz, Eulemur fulvus and Varecia variegata, have societies combining aspects of pairing with aspects of troop life. The best-known female-bonded societies, those of Lemur catta, Propithecus diadema edwardsi and Propithecus verreauxi, may be assemblages of mother-daughter dyads, capable of high aggression towards other females, but derived from more solitary female ancestors, perhaps also living as pairs. The internal structure of such lemur groups differs from the more extensive kin groups of catarrhines. This in turn may relate to the lemurs' level of social intelligence and to lemur female dominance over males. |
| Address |
Department of Ecology and Evolutionary Biology, Princeton University, N.J. 08544, USA. ajolly@princeton.edu |
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English |
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Edition |
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0015-5713 |
ISBN |
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Expedition |
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Conference |
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| Notes |
PMID:9595685 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
4179 |
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