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| Author |
Mal, M.E.; McCall ,C.A. |
| Title |
The influence of handling during different ages on a halter training test in foals |
Type |
Journal Article |
| Year |
1996 |
Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
| Volume |
5 |
Issue |
2 |
Pages  |
115-120 |
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| Abstract |
Ten foals were used to determine effects of handling during different ages on their ability to perform a halter training test. Early-handled (EH) foals (n = 5) were handled in 10 min sessions 5 d weekly from 24 h after birth until 42 d of age, then were not handled from 43 to 84 d of age. Later-handled (LH) foals (n = 5) were not handled from birth to 42 d of age, then were handled in 10-min sessions 5 d weekly from 43 to 84 d of age. At 85 d of age, each foal was subjected to a 10 min halter training test for 5 consecutive d. The test consisted of an unfamiliar handler placing a halter on each foal and attempting to make the foal walk forward for 20 m. Data recorded during each d of the halter training were duration of initial struggle, number of lunges into the air, time to first forward step, time to five consecutive forward steps, and time to travel 20 m. At the end of the 5 d halter training test, the handler assigned a subjective test rating score to each foal based on ease of training. Split-plot analysis indicated that EH foals took less time (P < 0.05) to take one step forward, five consecutive steps forward, and to travel 20 m than LH foals. One-way ANOVA indicated that EH foals had a lower (more desirable) test ratings than LH foals (P < 0.01). Results indicate that handling throughout the first 42 d of life increased foal performance on this halter training task compared to handling from 43 to 84 d of age. These results may imply the existence of a critical handling period during the first 42 d of age or a phenomenon similar to learned helplessness |
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Equine Behaviour @ team @ http://www.ag.auburn.edu/ansc/ResPrograms/influ_age.html |
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3665 |
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Nishida, T.; Hosaka K. |
| Title |
Coalition strategies among adult male chimpanzees of the Mahale Mountains, Tanzania. |
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Book Chapter |
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1996 |
Publication |
Great Ape Societies. |
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114-135 |
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Cambridge University Press |
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Cambridge |
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McGrew, W. C.; Marchant, L. F.; Nishida, T. |
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Equine Behaviour @ team @ |
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5470 |
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Reed, P.; Skiera, F.; Adams, L.; Heyes, C.M. |
| Title |
Effects of Isolation Rearing and Mirror Exposure on Social and Asocial Discrimination Performance |
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Journal Article |
| Year |
1996 |
Publication |
Learning and Motivation |
Abbreviated Journal |
Learn. Motiv. |
| Volume |
27 |
Issue |
2 |
Pages |
113-129 |
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Four experiments examined the effects of rearing in isolation on rats performance on discrimination-based and social learning tasks. After demonstrating that the rearing procedures produced similar results in an open field task to those previously established (Experiment 1), rats were subjected to two discrimination tasks: an instrumental occasion setting procedure (Experiment 3) and a nonspatial win-stay/lose-shift versus win-shift/lose-stay procedure (Experiment 4). Deficits in acquisition of the necessary discriminations were noted in the rats raised in isolation, but there were no differences between isolation-reared and socially reared subjects in response acquisition per se. In Experiment 2, rats were presented with an observational learning task using the bidirectional control procedure. Socially reared rats had a tendency to imitate the behavior they had observed, but rats raised in isolation performed the opposite behavior to that observed, indicating a failure to use a conspecific as a reference point in the task. The presence of a mirror during rearing in isolation was also investigated, but was found to have little effect in attenuating the above deficits in behavior. |
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refbase @ user @ |
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725 |
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Hausberger, M.; Le Scolan, N.; Muller, C.; Gautier, E.; Wolff, A. |
| Title |
Individual behavioural characteristics in horses: predictability, endogenous and environmental factors |
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Journal Article |
| Year |
1996 |
Publication |
Journée d`Etude |
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Journée d`Etude |
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22 |
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113- 123 |
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Insitute du Cheval |
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Paris |
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Equine Behaviour @ team @ |
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5023 |
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| Author |
Poling, A.; Temple, W.; Foster, T.M. |
| Title |
The differential outcomes effect: A demonstration in domestic chickens responding under a titrating-delayed-matching-to-sample procedure |
Type |
Journal Article |
| Year |
1996 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
| Volume |
36 |
Issue |
2 |
Pages |
109-115 |
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Domestic hen; Titrating-delayed-matching-to-sample procedure; Differential outcomes effect; Conditional discrimination; Animal welfare |
| Abstract |
The differential outcomes effect refers to the increase in speed of acquisition or terminal accuracy that occurs in discrimination training when each of two or more discriminative stimuli is correlated with a different outcome (e.g. type of reinforcer). The present study demonstrated this effect in domestic hens exposed to a titrating-delayed-matching-to-sample procedure, under which correct responses increased (and incorrect responses decreased) the delay between the offset of a sample stimulus and the onset of two comparison stimuli. Colors of key illumination (red, green) were used as sample and comparison stimuli and correct responses resulted in 1- or 4-s food deliveries. When 1-s food deliveries consistently followed correct responses to one key color and 4-s food deliveries followed correct responses to the other key color, the maximum delay reached by the hens and their overall accuracy was significantly higher than when 1- and 4-s food deliveries were randomly arranged following correct responses to both key colors. These data constitute the first demonstration of the differential outcomes effect in chickens, and in any species evaluated under a titrating-delayed-matching-to-sample procedure. |
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Equine Behaviour @ team @ |
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3604 |
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Lefebvre, L.; Giraldeau, L.-A. |
| Title |
Is social learning an adaptive specialisation? |
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Book Chapter |
| Year |
1996 |
Publication |
Social learning in animals: The root of culture |
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107-128 |
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Academic Press. |
Place of Publication |
San Diego |
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Heyes, C. M. ;B. G. Galef B. G..Jr. |
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978-0122739651 |
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Equine Behaviour @ team @ |
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4415 |
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Treichler, F.R.; Van Tilburg, D. |
| Title |
Concurrent Conditional Discrimination Tests of Transitive Inference by Macaque Monkeys: List Linking |
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Journal Article |
| Year |
1996 |
Publication |
Journal of Experimental Psychology: Animal Behavior Processes |
Abbreviated Journal |
J Exp Psychol Anim Behav Process |
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22 |
Issue |
1 |
Pages |
105-117 |
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Processing of serial information was assessed by training six macaques on a five-item list of objects arranged into the four conditional pairs, A-B+, B-C+, C-D+, and D-E+. An analogous list (F through J) was similarly trained. Subsequently, both lists were linked by training on E-F+, a pair that provided adjacent elements from each list. Then, all unique and trained object pairs from both lists were presented as a test. Results indicated that the objects were retained as a single, linearly organized list with choice accuracy directly related to interitem distance between paired objects. A second experiment explored the consequences of incidence of conflicting information on list organization. In both experiments, selections depended on representational processes and supported the view that monkeys and pigeons retain serial lists in qualitatively different ways. |
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refbase @ user @ |
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718 |
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Templeton, J.J.; Giraldeau, L.-A. |
| Title |
Vicarious sampling: the use of personal and public information by starlings foraging in a simple patchy environment |
Type |
Journal Article |
| Year |
1996 |
Publication |
Behavioral Ecology and Sociobiology |
Abbreviated Journal |
Behav. Ecol. Sociobiol. |
| Volume |
38 |
Issue |
2 |
Pages |
105-114 |
| Keywords |
Social foraging ? Patch sampling ? Public information ? Sturnidae |
| Abstract |
Group foragers may be able to assess patch quality more efficiently by paying attention to the sampling activities of conspecifics foraging in the same patch. In a previous field experiment, we showed that starlings foraging on patches of hidden food could use the successful foraging activities of others to help them assess patch quality. In order to determine whether a starling could also use another individual's lack of foraging success to assess and depart from empty patches more quickly, we carried out two experimental studies which compared the behaviour of captive starlings sampling artificial patches both when alone and when in pairs. Solitary starlings were first trained to assess patch quality in our experimental two-patch system, and were then tested on an empty patch both alone and with two types of partner bird. One partner sampled very few holes and thus provided a low amount of public information; the other sampled numerous holes and thus provided a high amount of public information. In experiment 1, we found no evidence of vicarious sampling. Subjects sampled a similar number of empty holes when alone as when with the low and high information partners; thus they continued to rely on their own personal information to make their patch departure decisions. In experiment 2, we modified the experimental patches, increasing the ease with which a bird could watch another's sampling activities, and increasing the difficulty of acquiring accurate personal sampling information. This time, subjects apparently did use public information, sampling fewer empty holes before departure when with the high-information partner than when with the low-information partner, and sampling fewer holes when with the low-information partner than when alone. We suggest that the degree to which personal and public information are used is likely to depend both on a forager's ability to remember where it has already sampled and on the type of environment in which foraging takes place. |
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Equine Behaviour @ team @ |
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4198 |
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Kraak, S.B.M. |
| Title |
`Copying mate choice': Which phenomena deserve this term? |
Type |
Journal Article |
| Year |
1996 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
| Volume |
36 |
Issue |
1 |
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99-102 |
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Copying mate choice; Proximate/ultimate causes |
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1816 |
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Kummer H; Anzenberger G; Hemelrijk CK |
| Title |
Hiding and perspective taking in long-tailed macaques (Macaca fascicularis) |
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Journal Article |
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1996 |
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J. Comp. Psychol. |
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110 |
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97 |
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Equine Behaviour @ team @ |
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3013 |
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