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	Author	Janik, V.M.
	Title	Whistle matching in wild bottlenose dolphins (Tursiops truncatus)			Type	Journal Article
	Year	2000	Publication	Science (New York, N.Y.)	Abbreviated Journal	Science
	Volume	289	Issue	5483	Pages	1355-1357
	Keywords	Animals; Animals, Wild/physiology; Dolphins/physiology; Imitative Behavior; Learning; Social Behavior; *Vocalization, Animal
	Abstract	Dolphin communication is suspected to be complex, on the basis of their call repertoires, cognitive abilities, and ability to modify signals through vocal learning. Because of the difficulties involved in observing and recording individual cetaceans, very little is known about how they use their calls. This report shows that wild, unrestrained bottlenose dolphins use their learned whistles in matching interactions, in which an individual responds to a whistle of a conspecific by emitting the same whistle type. Vocal matching occurred over distances of up to 580 meters and is indicative of animals addressing each other individually.
	Address	School of Biology, University of St. Andrews, Bute Building, Fife KY16 9TS, 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	0036-8075	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:10958783			Approved	no
	Call Number	refbase @ user @			Serial	550
Permanent link to this record



	Author	Horner, V.; Whiten, A.
	Title	Causal knowledge and imitation/emulation switching in chimpanzees (Pan troglodytes) and children (Homo sapiens)			Type	Journal Article
	Year	2005	Publication	Animal cognition	Abbreviated Journal	Anim. Cogn.
	Volume	8	Issue	3	Pages	164-181
	Keywords	Animals; Child Behavior; Child, Preschool; Concept Formation; Female; Humans; Imitative Behavior; Learning; Male; Pan troglodytes; Problem Solving; Psychomotor Performance; *Social Environment; Species Specificity
	Abstract	This study explored whether the tendency of chimpanzees and children to use emulation or imitation to solve a tool-using task was a response to the availability of causal information. Young wild-born chimpanzees from an African sanctuary and 3- to 4-year-old children observed a human demonstrator use a tool to retrieve a reward from a puzzle-box. The demonstration involved both causally relevant and irrelevant actions, and the box was presented in each of two conditions: opaque and clear. In the opaque condition, causal information about the effect of the tool inside the box was not available, and hence it was impossible to differentiate between the relevant and irrelevant parts of the demonstration. However, in the clear condition causal information was available, and subjects could potentially determine which actions were necessary. When chimpanzees were presented with the opaque box, they reproduced both the relevant and irrelevant actions, thus imitating the overall structure of the task. When the box was presented in the clear condition they instead ignored the irrelevant actions in favour of a more efficient, emulative technique. These results suggest that emulation is the favoured strategy of chimpanzees when sufficient causal information is available. However, if such information is not available, chimpanzees are prone to employ a more comprehensive copy of an observed action. In contrast to the chimpanzees, children employed imitation to solve the task in both conditions, at the expense of efficiency. We suggest that the difference in performance of chimpanzees and children may be due to a greater susceptibility of children to cultural conventions, perhaps combined with a differential focus on the results, actions and goals of the demonstrator.
	Address	Centre for Social Learning and Cognitive Evolution, School of Psychology, University of St Andrews, St Andrews, KY16 9JU, UK. vkh1@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	1435-9448	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:15549502			Approved	no
	Call Number	refbase @ user @			Serial	732
Permanent link to this record



	Author	Whiten, A.; Horner, V.; Litchfield, C.A.; Marshall-Pescini, S.
	Title	How do apes ape?			Type	Journal Article
	Year	2004	Publication	Learning & Behavior	Abbreviated Journal	Learn. Behav.
	Volume	32	Issue	1	Pages	36-52
	Keywords	Adaptation, Psychological; Animals; Behavior, Animal; Hominidae/psychology; Imitative Behavior; Imprinting (Psychology); Learning; Psychological Theory; Social Environment; *Social Facilitation
	Abstract	In the wake of telling critiques of the foundations on which earlier conclusions were based, the last 15 years have witnessed a renaissance in the study of social learning in apes. As a result, we are able to review 31 experimental studies from this period in which social learning in chimpanzees, gorillas, and orangutans has been investigated. The principal question framed at the beginning of this era, Do apes ape? has been answered in the affirmative, at least in certain conditions. The more interesting question now is, thus, How do apes ape? Answering this question has engendered richer taxonomies of the range of social-learning processes at work and new methodologies to uncover them. Together, these studies suggest that apes ape by employing a portfolio of alternative social-learning processes in flexibly adaptive ways, in conjunction with nonsocial learning. We conclude by sketching the kind of decision tree that appears to underlie the deployment of these alternatives.
	Address	Centre for Social Learning and Cognitive Evolution, Scottish Primate Research Group, School of Psychology, University of St. Andrews, St. Andrews, Fife, Scotland. a.whiten@st-and.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	1543-4494	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:15161139			Approved	no
	Call Number	refbase @ user @			Serial	734
Permanent link to this record



	Author	Caldwell, C.A.; Whiten, A.
	Title	Testing for social learning and imitation in common marmosets, Callithrix jacchus, using an artificial fruit			Type	Journal Article
	Year	2004	Publication	Animal cognition	Abbreviated Journal	Anim. Cogn.
	Volume	7	Issue	2	Pages	77-85
	Keywords	Animals; Association Learning; Callithrix/psychology; Discrimination Learning; Feeding Behavior; Female; Food Preferences; Fruit; Imitative Behavior; Male; *Social Behavior; Social Environment
	Abstract	We tested for social learning and imitation in common marmosets using an artificial foraging task and trained conspecific demonstrators. We trained a demonstrator marmoset to open an artificial fruit, providing a full demonstration of the task to be learned. Another marmoset provided a partial demonstration, controlling for stimulus enhancement effects, by eating food from the outside of the apparatus. We thus compared three observer groups, each consisting of four animals: those that received the full demonstration, those that received the partial demonstration, and a control group that saw no demonstration prior to testing. Although none of the observer marmosets succeeded in opening the artificial fruit during the test periods, there were clear effects of demonstration type. Those that saw the full demonstration manipulated the apparatus more overall, whereas those from the control group manipulated it the least of the three groups. Those from the full-demonstration group also contacted the particular parts of the artificial fruit that they had seen touched (localised stimulus enhancement) to a greater extent than the other two groups. There was also an interaction between the number of hand and mouth touches made to the artificial fruit for the full- and partial-demonstration groups. Whether or not these data represent evidence for imitation is discussed. We also propose that the clear differences between the groups suggest that social learning mechanisms provide real benefits to these animals in terms of developing novel food-processing skills analogous to the one presented here.
	Address	Centre for Social Learning and Cognitive Evolution and Scottish Primate Research Group, University of St Andrews, KY16 9JU, St Andrews, Fife, Scotland. C.A.Caldwell@exeter.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	1435-9448	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:15069606			Approved	no
	Call Number	refbase @ user @			Serial	735
Permanent link to this record



	Author	Horowitz, A.C.
	Title	Do humans ape? Or do apes human? Imitation and intention in humans (Homo sapiens) and other animals			Type	Journal Article
	Year	2003	Publication	Journal of comparative psychology	Abbreviated Journal	J Comp Psychol
	Volume	117	Issue	3	Pages	325-336
	Keywords	Adolescent; Adult; Animals; Appetitive Behavior; Attention; Child, Preschool; Concept Formation; Female; Humans; Imitative Behavior; Male; Motivation; Pan troglodytes/psychology; Problem Solving; *Psychomotor Performance; Reaction Time; Species Specificity
	Abstract	A. Whiten, D. M. Custance, J.-C. Gomez, P. Teixidor, and K. A. Bard (1996) tested chimpanzees' (Pan troglodytes) and human children's (Homo sapiens) skills at imitation with a 2-action test on an “artificial fruit.” Chimpanzees imitated to a restricted degree; children were more thoroughly imitative. Such results prompted some to assert that the difference in imitation indicates a difference in the subjects' understanding of the intentions of the demonstrator (M. Tomasello, 1996). In this experiment, 37 adult human subjects were tested with the artificial fruit. Far from being perfect imitators, the adults were less imitative than the children. These results cast doubt on the inference from imitative performance to an ability to understand others' intentions. The results also demonstrate how any test of imitation requires a control group and attention to the level of behavioral analysis.
	Address	Department of Cognitive Science, University of California, San Diego, CA, USA. ahorowitz@crl.ucsd.edu
	Corporate Author				Thesis
	Publisher		Place of Publication	Washington, D.C. : 1983	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:14498809			Approved	yes
	Call Number	refbase @ user @			Serial	736
Permanent link to this record



	Author	Stoinski, T.S.; Whiten, A.
	Title	Social learning by orangutans (Pongo abelii and Pongo pygmaeus) in a simulated food-processing task			Type	Journal Article
	Year	2003	Publication	Journal of comparative psychology (Washington, D.C. : 1983)	Abbreviated Journal	J Comp Psychol
	Volume	117	Issue	3	Pages	272-282
	Keywords	Animal Communication; Animals; Feeding Behavior; Female; Imitative Behavior; Male; Pongo pygmaeus/psychology; Problem Solving; Psychomotor Performance; Social Environment; Species Specificity; *Transfer (Psychology)
	Abstract	Increasing evidence for behavioral differences between populations of primates has created a resurgence of interest in examining mechanisms of information transfer between individuals. The authors examined the social transmission of information in 15 captive orangutans (Pongo abelii and Pongo pygmaeus) using a simulated food-processing task. Experimental subjects were shown 1 of 2 methods for removing a suite of defenses on an “artificial fruit.” Control subjects were given no prior exposure before interacting with the fruit. Observing a model provided a functional advantage in the task, as significantly more experimental than control subjects opened the fruit. Within the experimental groups, the authors found a trend toward differences in the actual behaviors used to remove 1 of the defenses. Results support observations from the wild implying horizontal transfer of information in orangutans and show that a number of social learning processes are likely to be involved in the transfer of knowledge in this species.
	Address	Department of Primate Research, Zoo Atlanta, Atlanta, GA 30315, USA. tstoinski@zooatlanta.org
	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:14498803			Approved	no
	Call Number	refbase @ user @			Serial	737
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	Author	Stoinski, T.S.; Wrate, J.L.; Ure, N.; Whiten, A.
	Title	Imitative learning by captive western lowland gorillas (Gorilla gorilla gorilla) in a simulated food-processing task			Type	Journal Article
	Year	2001	Publication	Journal of comparative psychology (Washington, D.C. : 1983)	Abbreviated Journal	J Comp Psychol
	Volume	115	Issue	3	Pages	272-281
	Keywords	Animals; Behavior, Animal/physiology; Discrimination Learning; Feeding Behavior/physiology; Gorilla gorilla; *Imitative Behavior; Social Behavior
	Abstract	Although field studies have suggested the existence of cultural transmission of foraging techniques in primates, identification of transmission mechanisms has remained elusive. To test experimentally for evidence of imitation in the current study, we exposed gorillas (Gorilla gorilla gorilla) to an artificial fruit foraging task designed by A. Whiten and D. M. Custance (1996). Gorillas (n=6) watched a human model remove a series of 3 defenses around a fruit. Each of the defenses was removed using 1 of 2 alternative techniques. Subsequent video analysis of gorillas' behavior showed a significant tendency to copy the observed technique on 1 of the individual defenses and the direction of removal on another defense. This is the first statistically reliable evidence of imitation in gorillas. Sequence of defense removal was not replicated. The gorillas' responses were most similar to those of chimpanzees.
	Address	TECHlab, Zoo Atlanta, Georgia 30315, USA. stoinskit@mindspring.com
	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:11594496			Approved	no
	Call Number	refbase @ user @			Serial	738
Permanent link to this record



	Author	Whiten, A.; Custance, D.M.; Gomez, J.C.; Teixidor, P.; Bard, K.A.
	Title	Imitative learning of artificial fruit processing in children (Homo sapiens) and chimpanzees (Pan troglodytes)			Type	Journal Article
	Year	1996	Publication	Journal of comparative psychology (Washington, D.C. : 1983)	Abbreviated Journal	J Comp Psychol
	Volume	110	Issue	1	Pages	3-14
	Keywords	Animals; Child, Preschool; Discrimination Learning; Female; Food Preferences/psychology; Fruit; Humans; Imitative Behavior; Male; Mental Recall; Pan troglodytes/psychology; Social Environment
	Abstract	Observational learning in chimpanzees and young children was investigated using an artificial fruit designed as an analog of natural foraging problems faced by primates. Each of 3 principal components could be removed in 2 alternative ways, demonstration of only one of which was watched by each subject. This permitted subsequent imitation by subjects to be distinguished from stimulus enhancement. Children aged 2-4 years evidenced imitation for 2 components, but also achieved demonstrated outcomes through their own techniques. Chimpanzees relied even more on their own techniques, but they did imitate elements of 1 component of the task. To our knowledge, this is the first experimental evidence of chimpanzee imitation in a functional task designed to simulate foraging behavior hypothesized to be transmitted culturally in the wild.
	Address	Scottish Primate Research Group, University of St. Andrews, Fife, Scotland. aw2@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:8851548			Approved	no
	Call Number	refbase @ user @			Serial	744
Permanent link to this record



	Author	Fragaszy, D.; Visalberghi, E.
	Title	Socially biased learning in monkeys			Type	Journal Article
	Year	2004	Publication	Learning & behavior : a Psychonomic Society publication	Abbreviated Journal	Learn Behav
	Volume	32	Issue	1	Pages	24-35
	Keywords	Adaptation, Psychological; Animal Communication; Animals; Behavior, Animal; Feeding Behavior/psychology; Food Preferences/psychology; Haplorhini/psychology; Imitative Behavior; Imprinting (Psychology); Learning; Social Environment; Social Facilitation
	Abstract	We review socially biased learning about food and problem solving in monkeys, relying especially on studies with tufted capuchin monkeys (Cebus apella) and callitrichid monkeys. Capuchin monkeys most effectively learn to solve a new problem when they can act jointly with an experienced partner in a socially tolerant setting and when the problem can be solved by direct action on an object or substrate, but they do not learn by imitation. Capuchin monkeys are motivated to eat foods, whether familiar or novel, when they are with others that are eating, regardless of what the others are eating. Thus, social bias in learning about foods is indirect and mediated by facilitation of feeding. In most respects, social biases in learning are similar in capuchins and callitrichids, except that callitrichids provide more specific behavioral cues to others about the availability and palatability of foods. Callitrichids generally are more tolerant toward group members and coordinate their activity in space and time more closely than capuchins do. These characteristics support stronger social biases in learning in callitrichids than in capuchins in some situations. On the other hand, callitrichids' more limited range of manipulative behaviors, greater neophobia, and greater sensitivity to the risk of predation restricts what these monkeys learn in comparison with capuchins. We suggest that socially biased learning is always the collective outcome of interacting physical, social, and individual factors, and that differences across populations and species in social bias in learning reflect variations in all these dimensions. Progress in understanding socially biased learning in nonhuman species will be aided by the development of appropriately detailed models of the richly interconnected processes affecting learning.
	Address	Psychology Department, University of Georgia, Athens, Georgia 30602, USA. doree@uga.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	1543-4494	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:15161138			Approved	no
	Call Number	refbase @ user @			Serial	828
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	Author	Biederman, G.B.; Robertson, H.A.; Vanayan, M.
	Title	Observational learning of two visual discriminations by pigeons: a within-subjects design			Type	Journal Article
	Year	1986	Publication	Journal of the experimental analysis of behavior	Abbreviated Journal	J Exp Anal Behav
	Volume	46	Issue	1	Pages	45-49
	Keywords	Animals; Attention; Columbidae; Conditioning, Operant; Cues; Discrimination Learning; Imitative Behavior; Male; Visual Perception
	Abstract	Pigeon's observational learning of successive visual discrimination was studied using within-subject comparisons of data from three experimental conditions. Two pairs of discriminative stimuli were used; each bird was exposed to two of the three experimental conditions, with different pairs of stimuli used in a given bird's two conditions. In one condition, observers were exposed to visual discriminative stimuli only. In a second condition, subjects were exposed to a randomly alternating sequence of two stimuli where the one that would subsequently be used as S+ was paired with the operation of the grain magazine. In a third experimental condition, subjects were exposed to the performance of a conspecific in the operant discrimination procedure. After exposures to conspecific performances, there was facilitation of discriminative learning, relative to that which followed exposures to stimulus and reinforcement sequences or exposures to stimulus sequences alone. Exposure to stimulus and food-delivery sequences enhanced performance relative to exposure to stimulus sequences alone. The differential effects of these three types of exposure were not attributable to order effects or to task difficulty; rather, they clearly were due to the type of exposure.
	Address
	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	0022-5002	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:3746187			Approved	no
	Call Number	refbase @ user @			Serial	853
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