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Author Bunnell, B.; Gore, W.; Perkins, M.
Title Performance correlates of social behavior and organization: Social rank and reversal learning in crab-eating macaques (M. fascicularis) Type Journal Article
Year 1980 Publication Primates Abbreviated Journal Primates
Volume 21 Issue 3 Pages 376-388
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Abstract Abstract  Seventeen male crab-eating macaques drawn from two captive troops, were tested on a brightness discrimination, reversal learning task. Fourteen of these animals completed ten reversals. It was found that the performance of the three highest ranking animals from each troop, taken together, was poorer than that of the lower ranking animals that were tested. The high ranking animals made more errors before reaching criterion on both initial learning and the reversal problems. Analysis of error patterns revealed that, while the high ranking animals had no more difficulty than the others in withholding their responses to the previously correct stimulus following reversals, they did not adopt the correct strategy as soon as the low ranking animals. The results have been interpreted in terms of a carry-over of a hypothetical factor or factors resulting from pressures created by the ongoing social dynamics involved in establishing and maintaining a given social rank at the time laboratory testing occurred.
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Notes Approved no
Call Number Serial 2083
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Author Keiper, R.R.; Keenan, M.A.
Title Nocturnal activity patterns of feral horses Type Journal Article
Year 1980 Publication J. Mammal Abbreviated Journal J. Mammal
Volume 61 Issue Pages 116-118
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 2311
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Author Rubin, L.; Oppegard, C.; Hindz, H.F.
Title The effect of varying the temporal distribution of conditioning trials on equine learning behavior Type Journal Article
Year 1980 Publication Journal of Animal Science Abbreviated Journal J. Anim Sci.
Volume 50 Issue 6 Pages 1184-1187
Keywords Animals; Conditioning (Psychology); *Horses; *Learning
Abstract Two experiments were conducted to study the effect of varying the temporal distrbution of conditioning sessions on equine learning behavior. In the first experiment, 15 ponies were trained to clear a small hurdle in response to a buzzer in order to avoid a mild electric shock. Three treatments were used. One group received 10 learning trials daily, seven times a week; one group was trained in the same fashion two times a week and one group was trained once a week. The animals conditioned only once a week achieved a high level of performance in significantly fewer sessions than the ones conditioned seven times a week, although elapsed time from start of training to completion was two to three times greater for the former group. The twice-a-week group learned at an intermediate rate. In the second experiment, the ponies were rearranged into three new groups. They were taught to move backward a specific distance in response to a visual cue in order to avoid an electric shock. Again, one group was trained seven times a week, one group was trained two times and one group was trained once a week. As in the first experiment, the animals trained once a week achieved the learning criteria in significantly fewer sessions than those trained seven times a week, but, as in trial 1, elapsed time from start to finish was greater for them. The two times-a-week group learned at a rate in-between the rates of the other two groups.
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Publisher Place of Publication Editor
Language English Summary Language Original Title
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ISSN 0021-8812 ISBN Medium
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Notes PMID:7400060 Approved no
Call Number Equine Behaviour @ team @ Serial 3558
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Author De Moraes Ferrari,E. A.; Todorov, J. C.
Title Concurrent avoidance of shocks by pigeons pecking a key Type Journal Article
Year 1980 Publication Abbreviated Journal J Exp Anal Behav.
Volume 30 Issue 3 Pages 329-333
Keywords concurrent schedules, unsignaled avoidance, negative reinforcement, key pecking, pigeon
Abstract Three pigeons were studied on concurrent, unsignaled, avoidance schedules in a two-key procedure. Shock-shock intervals were two seconds in both schedules. The response-shock interval on one key was always 22 seconds, while the response-shock interval associated with the other key was varied from 7 to 52 seconds in different experimental conditions. Response rates on the key associated with the varied schedule tended to decrease when the response-shock interval length was increased. Responding on the key associated with the constant schedule was not systematically affected.
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Call Number Equine Behaviour @ team @ Serial 3586
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Author Lewis,P.; Gardner, ET; Lopatto, D.
Title Shock-duration reduction as negative reinforcement Type Journal Article
Year 1980 Publication The Psychological Record Abbreviated Journal Psychol. Rec,
Volume Issue Pages
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Abstract In 2 experiments, 9 female Sprague-Dawley albino rats were shocked every 30 sec. Before the barpress response, shocks were long (2 sec); for 3 min after a response, shocks were short (0.1, 0.5, or 1 sec). When responding reduced shocks from 2 to 0.1 sec, barpressing was acquired, and the shorter the shocks the more time spent with the short-shock condition in effect. In another procedure, the duration of individual shocks following a response was controlled so that the 1st shock was as long as those before the response (2 sec), but the remaining shocks in the 3-min period were short (0.1 sec). Barpressing was maintained in some Ss and acquired in others showing that, even when delayed, a reduction in shock duration is reinforcing. These findings question the generality of a 2-factor, safety-signal interpretation of negative reinforcement. These results plus others imply that to predict responding in aversive situations it is necessary to integrate, for at least several minutes, the parameters of aversive events that follow a response. (27 ref) (PsycINFO Database Record (c) 2014 APA, all rights reserved)
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Call Number Equine Behaviour @ team @ Serial 3596
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Author Stoddart, D.M.
Title The ecology of vertebrate olfaction Type Book Whole
Year 1980 Publication Abbreviated Journal
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Publisher Chapman and Hall Place of Publication London; New York Editor
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ISSN ISBN 0412218208 9780412218200 Medium
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Notes Approved no
Call Number Equine Behaviour @ team @ 6770946 Serial 4367
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Author Karstens, H.
Title Das Military Pferd Type Journal Article
Year 1980 Publication Abbreviated Journal
Volume Issue Pages
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Publisher Haberbeck Place of Publication Lage Editor
Language German Summary Language Original Title
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 4436
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Author Brügger, A.
Title Die Erkrankungen des Bewegungsapparates und seines Nervensystems. Type Book Whole
Year 1980 Publication Abbreviated Journal
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Publisher Gustav Fischer Place of Publication Stuttgart Editor
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ISSN ISBN 3437105051 Medium
Area Expedition Conference
Notes Approved no
Call Number Equine Behaviour @ team @ Serial 4440
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Author Brügger, A.
Title Gesunde Körperhaltung im Alltag Type Book Whole
Year 1980 Publication Abbreviated Journal
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Publisher Dr. A. Brügger Place of Publication Zürich Editor
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 4451
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Author Appleby, M.C.
Title Social Rank and Food Access in Red Deer Stags Type Journal Article
Year 1980 Publication Behaviour Abbreviated Journal Behaviour
Volume 74 Issue Pages 294-309
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Abstract The behaviour of a free-living group of male red deer (Cervus elaphus L.) on the Isle of Rhum, Scotland, was studied throughout the year to investigate the relations between social dominance and food access. The study is based on the collection of agonistic interactions between members of the study group outside the rutting season. Analysis of these confirmed that dyadic dominance relationships summate to a very clear agonistic hierarchy, while seasonal changes in frequency and type of interactions suggested that rank in the hierarchy may affect access to food through direct feeding interference. This would constitute a selective advantage of the acquisition of high rank. A behaviour pattern in which a stag displaces a subordinate and takes over his feeding-site is proposed as a mechanism of direct feeding interference. It occurs throughout the year, but with a frequency closely related to changes in food availability and quality. The proportion of such interactions that an individual wins is related to his rank, so advantages gained from this behaviour would primarily benefit high-ranking stags. These are likely to consist of improved body condition and winter survival. The importance of high rank in obtaining access to limited food was supported by the results of a simple experiment providing a small area of fertilized grass. Most of the grazing in the area was due to the highest-ranking stag present at any time.
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 4860
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