| Records |
| Author |
Shettleworth, S.J. |
| Title |
Taking the best for learning |
Type  |
Journal Article |
| Year |
2005 |
Publication |
Behavioural processes |
Abbreviated Journal |
Behav. Process. |
| Volume |
69 |
Issue |
2 |
Pages |
147-9; author reply 159-63 |
| Keywords |
*Algorithms; Animals; *Behavior, Animal; Decision Making; Evolution; *Learning; *Models, Theoretical |
| Abstract |
Examples of how animals learn when multiple, sometimes redundant, cues are present provide further examples not considered by Hutchinson and Gigerenzer that seem to fit the principle of taking the best. “The best” may the most valid cue in the present circumstances; evolution may also produce species-specific biases to use the most functionally relevant cues. |
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Department of Psychology, University of Toronto, Toronto, Ont., Canada M5S 3G3. shettle@psych.utoronto.ca |
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English |
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0376-6357 |
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PMID:15845301 |
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361 |
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| Author |
Hogue, M.-E.; Beaugrand, J.P.; Lague, P.C. |
| Title |
Coherent use of information by hens observing their former dominant defeating or being defeated by a stranger |
Type |
Journal Article |
| Year |
1996 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
| Volume |
38 |
Issue |
3 |
Pages |
241-252 |
| Keywords |
Domestic fowl; Dominance; Hierarchy formation; Observation; Transitive inference |
| Abstract |
This study examines the role of observation during the formation of triads in female domestic hens. Results indicate that during hierarchy formation, a hen observing agonistic interactions and conflict settlement between its former dominant and a stranger uses this information when in turn confronted by the latter. Under a first condition (E, N = 15 triads), bystanders witnessed their prior dominant being defeated by a stranger before being introduced to them. In a second condition (C1, N = 16 triads), bystanders witnessed the victory of their prior dominant over a stranger. In a third condition (C2, N = 15 triads), bystanders witnessed two strangers establishing a dominance relationship before being introduced to their prior dominant and to a stranger the former had just defeated. The behavioural strategies of bystanders depended on the issue of the conflict they had witnessed. Bystanders of the E condition behaved as having no chance of defeating the stranger. They never initiated an attack against it, and upon being attacked, readily submitted in turn to the stranger. On the contrary, bystanders of the C1 condition behaved as having some chances against the stranger. They initiated attacks in 50% of cases, and won 50% of conflicts against the stranger. Under condition C2, bystanders first initiated contact with the strangers in only 27% of cases, which approximates the average of their chances for defeating the stranger. However, bystanders finally defeated the strangers in 40% of cases. These results suggest that bystanders of conditions E and C1 gained some information on the relationship existing between their prior dominant and the stranger and that they used it coherently, perhaps through transitive inference, thus contributing to the existence of transitive relationships within the triads. Alternate explanations are examined. |
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396 |
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| Author |
Dugatkin, L.A.; Bekoff, M. |
| Title |
Play and the evolution of fairness: a game theory model |
Type |
Journal Article |
| Year |
2003 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
| Volume |
60 |
Issue |
3 |
Pages |
209-214 |
| Keywords |
Play; Fairness; Game theory |
| Abstract |
Bekoff [J. Consci. Stud. 8 (2001) 81] argued that mammalian social play is a useful behavioral phenotype on which to concentrate in order to learn more about the evolution of fairness. Here, we build a game theoretical model designed to formalize some of the ideas laid out by Bekoff, and to examine whether `fair' strategies can in fact be evolutionarily stable. The models we present examine fairness at two different developmental stages during an individual's ontogeny, and hence we create four strategies--fair at time 1/fair at time 2, not fair at time 1/not fair at time 2, fair at time 1/not fair at time 2, not fair at time 1/fair at time 2. Our results suggest that when considering species where fairness can be expressed during two different developmental stages, acting fairly should be more common than never acting fairly. In addition, when no one strategy was evolutionarily stable, we found that all four strategies we model can coexist at evolutionary equilibrium. Even in the absence of an overwhelming database from which to test our model, the general predictions we make have significant implications for the evolution of fairness. |
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488 |
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| Author |
Ord, T.J.; Evans, C.S. |
| Title |
Interactive video playback and opponent assessment in lizards |
Type |
Journal Article |
| Year |
2002 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
| Volume |
59 |
Issue |
2 |
Pages |
55-65 |
| Keywords |
Animal communication; Display; Lizard; Playback; Visual signal |
| Abstract |
Video playback has been used to explore many issues in animal communication, but the scope of this work has been constrained by the lack of stimulus-subject interaction. In many natural contexts, each participant's signalling behaviour is dependent from moment-to-moment on that of the other. Analyses of acoustic communication demonstrate the value of reproducing such social contingencies. We assessed the utility of interactive playback for studies of visual signalling by comparing the responses of male Jacky dragons, Amphibolurus muricatus, to interactive and non-interactive digital video playbacks of a life-sized conspecific. Displays produced by lizards in the interactive condition had the effect of suppressing the aggressive display of their simulated opponent. Each stimulus sequence generated during an interactive playback was subsequently played to a size-matched control animal. Males that could interact with the video stimulus responded principally with aggressive displays, while those that could not produced a mixture of aggressive and appeasement signals. Adding a degree of receiver responsiveness is hence sufficient to alter the type of signal evoked, even when video stimuli are physically identical. Interactive playback permits the experimental study of a broader range of theoretical topics and can enhance the realism of video stimuli. |
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539 |
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| Author |
Chalmeau, R.; Gallo, A. |
| Title |
Social constraints determine what is learned in the chimpanzee |
Type |
Journal Article |
| Year |
1993 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
| Volume |
28 |
Issue |
3 |
Pages |
173-179 |
| Keywords |
Operant conditioning; Social influence; Individual strategy; Chimpanzee |
| Abstract |
A group of six chimpanzees was placed in a social learning situation, without training. The learning task was an operant conditioning situation; that is, a subject had to pull two handles simultaneously to cause a piece of fruit to fall into the cage. Only three individuals acquired the operant behaviour. For the operant individuals, social influences on the expression of the learning task were then examined; the dominant chimpanzee during feeding had an inhibiting effect when close to the operant subjects. Depending on the subject, social factors may influence not only the specific expression of what is learnt, but also the nature of what is learnt. Chimpanzees appear to experience situations differently: they develop an individual problem-solving strategy according to their social relationships even if the experimental procedure is the same for all. |
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refbase @ user @ |
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569 |
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| Author |
Chalmeau, R.; Gallo, A. |
| Title |
Cooperation in primates: Critical analysis of behavioural criteria |
Type |
Journal Article |
| Year |
1995 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
| Volume |
35 |
Issue |
1-3 |
Pages |
101-111 |
| Keywords |
Cognition; Communication; Cooperation; Evolution; Primates |
| Abstract |
Concerning hunting in chimpanzees, cooperation has generally been attributed to the behaviour of two or more individuals acting together to achieve a common goal (Boesch and Boesch, 1989). The common goal is often considered as the concrete result of a common action by two or several individuals. Although this result could be used as a criterion for cooperation, it could also be an outcome due to chance. We suggest that the goal, viewed as a concrete benefit shared by the partners, is not a requisite of cooperation but rather a possible consequence of a common action largely submitted to social constraints. Individuals engaged in a cooperative task in order to solve a problem have to exchange information to adjust to each other's behaviour. However, evidence of communication between partners during simultaneous cooperation is rare. An experiment in which two chimpanzees each had to simultaneously pull a handle to get a fruit was performed. We analysed not only the concrete result of the partners' activity but also what the individuals took into account before pulling a handle. We tried to specify what the chimpanzees learned by means of a series of logical propositions which we were able to confront the experimental results. |
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no |
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refbase @ user @ |
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570 |
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Anderson, J.R.; Fornasieri, I.; Ludes, E.; Roeder, J.-J. |
| Title |
Social processes and innovative behaviour in changing groups of lemur fulvus |
Type |
Journal Article |
| Year |
1992 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
| Volume |
27 |
Issue |
2 |
Pages |
101-112 |
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Social learning; Lemur fulvus; Dominance; Individual differences |
| Abstract |
A group of brown lemurs was presented with one or two baited food-boxes requiring a specific type of motor response in order to be opened. Subsequently, four groups containing different combinations of experienced individuals from the original group and naive individuals were tested. Solutions to the problem and access to the food were recorded and considered in relation to social factors. In the original group, two adult males learned to open the boxes, with one male increasingly preventing the other from approaching. In the second group, with the subordinate male and certain females removed, the dominant male tolerated successful performances by a juvenile female. Group 3 consisted of three passive female participants from the original group and a naive female; one of the three original females now became the sole box-opener. The introduction of the subordinate male from the original group into the all-female group led to a sharing of box-opening by this subject and the skilled female. In the final group, intense aggression toward the skilled female by a new, naive adult male resulted in two previously passive females succeeding on some occasions. In lemurs, at least some `scroungers' appear able to learn to perform a new act when the social context permits. |
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576 |
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Hall, C. |
| Title |
The impact of visual perception on equine learning |
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Journal Article |
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2007 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
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76 |
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29-33 |
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619 |
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Ninomiya, S. |
| Title |
Social leaning and stereotypy in horses |
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Journal Article |
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2007 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
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76 |
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22-23 |
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Leblanc, M.-A.; Duncan, P. |
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Can studies of cognitive abilities and of life in the wild really help us to understand equine learning? |
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Journal Article |
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2007 |
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Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
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76 |
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49-52 |
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