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	Author	Fetterman, J.G.
	Title	Dimensions of stimulus complexity			Type	Journal Article
	Year	1996	Publication	Journal of Experimental Psychology. Animal Behavior Processes	Abbreviated Journal	J Exp Psychol Anim Behav Process
	Volume	22	Issue	1	Pages	3-18
	Keywords	Animals; Behavior, Animal; Cognition; Learning; Memory; Time Factors
	Abstract	Animal learning research has increasingly used complex stimuli that approximate natural objects, events, and locations, a trend that has accompanied a resurgence of interest in the role of cognitive factors in learning. Accounts of complex stimulus control have focused mainly on cognitive mechanisms and largely ignored the contribution of stimulus information to perception and memory for complex events. It is argued here that research on animal learning stands to benefit from a more detailed consideration of the stimulus and that James Gibson's stimulus-centered theory of perception serves as a useful framework for analyses of complex stimuli. Several issues in the field of animal learning and cognition are considered from the Gibsonian perspective on stimuli, including the fundamental problem of defining the effective stimulus.
	Address	Department of Psychology, Indiana University-Purdue University, Indianapolis 46202, USA
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0097-7403	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:8568494			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	2782
Permanent link to this record



	Author	de Waal, F.B.; Seres, M.
	Title	Propagation of handclasp grooming among captive chimpanzees			Type	Journal Article
	Year	1997	Publication	American journal of primatology	Abbreviated Journal	Am. J. Primatol.
	Volume	43	Issue	4	Pages	339-346
	Keywords	Animals; Family Relations; Female; Grooming; Learning; Male; Pan troglodytes/psychology; *Social Behavior
	Abstract	A grooming posture previously reported for two wild chimpanzee (Pan troglodytes) communities developed spontaneously in a captive group of the same species. This offered a unique opportunity to follow the propagation of a new social custom. The posture consists of two partners grasping hands--either both right hands or both left hands--and raising the arms in an A-frame above their heads while mutually grooming with their free hands. The propagation of this pattern was followed over a 5 year period. In the beginning, handclasps were always initiated by the same adult female. This female initiated the posture mainly with her adult female kin. In subsequent years, these relatives became frequent participants in the posture with each other as well as with nonrelatives. Over the years the posture increased in frequency and duration and spread to the majority of adults and also to a few adolescents and older juveniles. The pattern persisted after removal of the apparent originator.
	Address	Yerkes Primate Center, Emory University, Atlanta, GA 30329, USA. dewaal@emory.edu
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0275-2565	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:9403098			Approved	no
	Call Number	refbase @ user @			Serial	202
Permanent link to this record



	Author	Sappington, B.K.F.; McCall, C.A.; Coleman, D.A.; Kuhlers, D.L.; Lishak, R.S.
	Title	A preliminary study of the relationship between discrimination reversal learning and performance tasks in yearling and 2-year-old horses			Type	Journal Article
	Year	1997	Publication	Applied Animal Behaviour Science	Abbreviated Journal	Appl. Anim. Behav. Sci.
	Volume	53	Issue	3	Pages	157-166
	Keywords	Cognition; Learning; Horse; Training
	Abstract	A study was conducted to determine the relationship between discrimination reversal learning and performance tasks in horses. Ten yearling and seven 2-year-old mares and geldings of Arabian (n = 4), Quarter Horse (n = 9), and Thoroughbred (n = 4) breeding were given a two-choice discrimination task in which either a black or a white bucket contained a food reward for ten trials per day during 19 test days. The spatial position of the buckets was varied on a random schedule. The rewarded bucket color was reversed each time a subject met criterion of eight correct choices per day for 2 consecutive days. Discrimination reversal testing was followed by 6 days of performance tasks: three crossing a wooden bridge and three jumping an obstacle to reach food and conspecifics, within a maximum allotted time of 15 min day-1. Total reversals attained by the horses were low (x = 1.5 +/- 0.9). All subjects did attain at least one reversal, and six had two or more reversals. No differences (P > .05) were detected between ages or sexes, nor among breeds in discrimination reversal learning or performance test measurements. However, there was a trend towards a breed difference (P <= 0.09) in the mean number of correct responses to the first reversal criterion. Correlations between reversal learning results and performance task results were extremely low, indicating that the discrimination reversal learning test was not useful for predicting success at these performance tasks. Results from the two performance tasks also showed little correlation (r = 0.04, P < 0.91), indicating that horses might not use the same approach when solving the problem of crossing these two obstacles. The overall poor performance of the horses on the discrimination reversal task suggests horses may have difficulty reversing previously learned tasks.
	Address
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN		ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	no
	Call Number	refbase @ user @			Serial	826
Permanent link to this record



	Author	Church, R.M.
	Title	Quantitative models of animal learning and cognition			Type	Journal Article
	Year	1997	Publication	Journal of Experimental Psychology. Animal Behavior Processes	Abbreviated Journal	J Exp Psychol Anim Behav Process
	Volume	23	Issue	4	Pages	379-389
	Keywords	Animals; Behavior, Animal; Cognition; Computer Simulation; Learning; Models, Psychological; *Models, Theoretical
	Abstract	This article reviews the prerequisites for quantitative models of animal learning and cognition, describes the types of models, provides a rationale for the development of such quantitative models, describes criteria for their evaluation, and makes recommendations for the next generation of quantitative models. A modular approach to the development of models is described in which a procedure is considered as a generator of stimuli and a model is considered as a generator of responses. The goal is to develop models that, in combination with many different procedures, produce sequences of times of occurrence of events (stimuli and responses) that are indistinguishable from those produced by the animal under many experimental procedures and data analysis techniques.
	Address	Department of Psychology, Brown University, Providence, Rhode Island 02912, USA. russell_church@brown.edu
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0097-7403	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:9335132			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	2778
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	Author	de Wall, F.B.; Aureli, F.
	Title	Conflict resolution and distress alleviation in monkeys and apes			Type	Journal Article
	Year	1997	Publication	Annals of the New York Academy of Sciences	Abbreviated Journal	Ann N Y Acad Sci
	Volume	807	Issue		Pages	317-328
	Keywords	Adaptation, Psychological; Animals; Arousal; Conflict (Psychology); Empathy; Haplorhini/psychology; Hominidae/psychology; Humans; Learning; Models, Psychological; *Social Behavior; Stress, Psychological
	Abstract	Research on nonhuman primates has produced compelling evidence for reconciliation and consolation, that is, postconflict contacts that serve to respectively repair social relationships and reassure distressed individuals, such as victims of attack. This has led to a view of conflict and conflict resolution as an integrated part of social relationships, hence determined by social factors and modifiable by the social environment. Implications of this new model of social conflict are discussed along with evidence for behavioral flexibility, the value of cooperation, and the possibility that distress alleviation rests on empathy, a capacity that may be present in chimpanzees and humans but not in most other animals.
	Address	Yerkes Regional Primate Research Center, Emory University, Atlanta, Georgia 30322, USA. dewaal@rmy.emory.edu
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0077-8923	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:9071360			Approved	no
	Call Number	refbase @ user @			Serial	2882
Permanent link to this record



	Author	Slabbert, J.M.; Rasa, O.A.E.
	Title	Observational learning of an acquired maternal behaviour pattern by working dog pups: an alternative training method?			Type	Journal Article
	Year	1997	Publication	Applied Animal Behaviour Science	Abbreviated Journal	Appl. Anim. Behav. Sci.
	Volume	53	Issue	4	Pages	309-316
	Keywords	Dog; Learning; Parental behaviour; Narcotics
	Abstract	German shepherd pups from untrained bitches and bitches trained in the location of narcotics were either separated from their mothers at 6 weeks (standard raised) or at 3 months of age (extended maternal care). Pups with extended maternal care which were allowed to observe their trained mothers locating and retrieving a sachet of odour-producing narcotic between the ages of 6 and 12 weeks performed the same task significantly better than non-exposed pups when tested at the age of 6 months, without further reinforcement during the interim period. This difference in performance was independent of the duration of maternal care or maternal origin of the pups and was attributed to differences in early experience acquired through observational learning.
	Address
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0168-1591	ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	no
	Call Number	Equine Behaviour @ team @			Serial	5225
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	Author	Clement, T.S.; Weaver, J.E.; Sherburne, L.M.; Zentall, T.R.
	Title	Simultaneous discrimination learning in pigeons: value of S- affects the relative value of its associated S+			Type	Journal Article
	Year	1998	Publication	The Quarterly journal of experimental psychology. B, Comparative and physiological psychology	Abbreviated Journal	Q J Exp Psychol B
	Volume	51	Issue	4	Pages	363-378
	Keywords	Animals; Attention; Color Perception; Columbidae; Discrimination Learning; Female; Male; *Motivation; Orientation; Transfer (Psychology)
	Abstract	In a simple simultaneous discrimination involving a positive stimulus (S+) and a negative stimulus (S-), it has been hypothesized that positive value can transfer from the S+ to the S- (thus increasing the relative value of the S-) and also that negative value can transfer from the S- to the S+ (thus diminishing the relative value of the S+; Fersen, Wynne, Delius, & Staddon, 1991). Evidence for positive value transfer has been reported in pigeons (e.g. Zentall & Sherburne, 1994). The purpose of the present experiments was to determine, in a simultaneous discrimination, whether the S- diminishes the value of the S+ or the S- is contrasted with the S+ (thus enhancing the value of the S+). In two experiments, we found evidence for contrast, rather than value transfer, attributable to simultaneous discrimination training. Thus, not only does the S+ appear to enhance the value of the S-, but the S- appears to enhance rather than reduce the value of the S+.
	Address	Department of Psychology, University of Kentucky, Lexington 40506-0044, USA
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0272-4995	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:9854439			Approved	no
	Call Number	refbase @ user @			Serial	252
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	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
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0097-7403	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:9438965			Approved	no
	Call Number	refbase @ user @			Serial	253
Permanent link to this record



	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
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0735-7036	ISBN		Medium
	Area		Expedition		Conference
	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
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN		ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:10485004			Approved	no
	Call Number	refbase @ user @			Serial	845
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