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Author |
Hauber, M.E.; Sherman, P.W. |
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Title |
Designing and interpreting experimental tests of self-referent phenotype matching |
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Journal Article |
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Year |
2003 |
Publication |
Animal Cognition |
Abbreviated Journal  |
Anim. Cogn. |
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Volume |
6 |
Issue |
1 |
Pages |
69-71 |
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Keywords |
Animals; Birds; Body Constitution; Color; Humans; Pedigree; *Perception; Phenotype; *Recognition (Psychology); Research Design; *Self Psychology |
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Department of Neurobiology and Behavior, Cornell University, Ithaca, NY 14853-2702, USA |
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1435-9448 |
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PMID:12658536 |
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Equine Behaviour @ team @ |
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2580 |
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Author |
Caldwell, C.A.; Whiten, A. |
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Title |
Evolutionary perspectives on imitation: is a comparative psychology of social learning possible? |
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Journal Article |
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Year |
2002 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
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Volume |
5 |
Issue |
4 |
Pages |
193-208 |
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Keywords |
Animals; *Behavior, Animal; Evolution; Humans; *Imitative Behavior; Learning; Models, Animal |
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Abstract |
Studies of imitation in animals have become numerous in recent times, but do they contribute to a comparative psychology of social learning? We review this burgeoning field to identify the problems and prospects for such a goal. Difficulties of two main kinds are identified. First, researchers have tackled questions about social learning from at least three very different theoretical perspectives, the “phylogenetic”, “animal model”, and “adaptational”. We examine the conflicts between them and consider the scope for integration. A second difficulty arises in the methodological approaches used in the discipline. In relation to one of these – survey reviews of published studies – we tabulate and compare the contrasting conclusions of nine articles that together review 36 studies. The basis for authors' disagreements, including the matters of perceptual opacity, novelty, sequential structure, and goal representation, are examined. In relation to the other key method, comparative experimentation, we identify 12 studies that have explicitly compared species' imitative ability on similar tasks. We examine the principal problems of comparing like with like in these studies and consider solutions, the most powerful of which we propose to be the use of a systematic range of task designs, rather than any single “gold standard” task. |
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School of Psychology, Washington Singer Laboratories, University of Exeter, Exeter EX4 4QG, UK. C.A.Caldwell@exeter.ac.uk |
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1435-9448 |
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PMID:12461597 |
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Equine Behaviour @ team @ |
Serial |
2593 |
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Author |
Bjorklund, D.F.; Yunger, J.L.; Bering, J.M.; Ragan, P. |
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Title |
The generalization of deferred imitation in enculturated chimpanzees (Pan troglodytes) |
Type |
Journal Article |
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Year |
2002 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
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Volume |
5 |
Issue |
1 |
Pages |
49-58 |
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Keywords |
Age Factors; Animals; Behavior, Animal; Humans; *Imitative Behavior; Pan troglodytes/physiology/*psychology; Parenting; Species Specificity |
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Abstract |
Deferred imitation of object-related actions and generalization of imitation to similar but not identical tasks was assessed in three human-reared (enculturated) chimpanzees, ranging in age from 5 to 9 years. Each ape displayed high levels of deferred imitation and only slightly lower levels of generalization of imitation. The youngest two chimpanzees were more apt to generalize the model's actions when they had displayed portions of the target behaviors at baseline, consistent with the idea that learning is more likely to occur when working within the “zone of proximal development.” We argue that generalization of imitation is the best evidence to date of imitative learning in chimpanzees. |
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Department of Psychology, Florida Atlantic University, 777 Glades Road, Boca Raton, FL 33431-0991, USA. dbjorklund@fau.edu |
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1435-9448 |
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PMID:11957402 |
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no |
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Call Number |
Equine Behaviour @ team @ |
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2610 |
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Author |
Gácsi, M.; Kara, E.; Belényi, B.; Topál, J.; Miklósi, Á. |
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Title |
The effect of development and individual differences in pointing comprehension of dogs |
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Journal Article |
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Year |
2009 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
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Volume |
12 |
Issue |
3 |
Pages |
471-479 |
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Keywords |
Age Factors; Analysis of Variance; Animals; *Association Learning; Attention; Chi-Square Distribution; Choice Behavior; *Comprehension; *Concept Formation; Dogs/*psychology; Female; *Gestures; Humans; Male; Orientation; Statistics, Nonparametric |
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In spite of the rather different procedures actually used in comparative studies to test the ability of different species to rely on the human pointing gesture, there is no debate on the high performance of dogs in such tasks. Very little is known, however, on the course through which they acquire this ability or the probable factors influencing the process. Important developmental questions have remained unsolved and also some methodological concerns should be addressed before we can convincingly argue for one interpretation or another. In this study we tested 180 dogs of different age (from 2 months to adults) to investigate their performance in the human distal momentary pointing gesture. The results, analyzed at both the group and the individual levels, showed no difference in the performance according to age, indicating that in dogs the comprehension of the human pointing may require only very limited and rapid early learning to fully develop. Interestingly, neither the keeping conditions nor the time spent in active interaction with the owner, and not even some special (agility) training for using human visual cues, had significant effect on the success and explained individual differences. The performance of the dogs was rather stable over time: during the 20 trials within a session and even when subsamples of different age were repeatedly tested. Considering that in spite of the general success at the group level, more than half of the dogs were not successful at the individual level, we revealed alternative “decision-making rules” other than following the pointing gesture of the experimenter. |
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Department of Ethology, Eotvos University, Budapest, Hungary. gm.art@t-online.hu |
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1435-9456 |
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PMID:19130102 |
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Call Number |
Equine Behaviour @ team @ |
Serial |
4969 |
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Author |
Sankey, C.; Richard-Yris, M.-A.; Henry, S.; Fureix, C.; Nassur, F.; Hausberger, M. |
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Title |
Reinforcement as a mediator of the perception of humans by horses (Equus caballus) |
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Journal Article |
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Year |
2010 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
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Volume |
13 |
Issue |
5 |
Pages |
753-764-764 |
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Keywords |
Perception of humans – Human/animal relationship – Positive reinforcement – Negative reinforcement – Equus caballus |
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A central question in the interspecific human/animal relationship is how domestic animals perceive humans as a significant element of their environment. In this study, we tested the hypothesis that the use of positive or negative reinforcement in horse training may have consequences on the animals’ perception of humans, as a positive, negative or neutral element. Two groups of ponies were trained to walk backwards in response to a vocal order using either positive or negative reinforcement. Heart rate monitors and behavioural observations were used to assess the animals’ perception of humans on the short (just after training) and long (5 months later) terms. The results showed that the type of reinforcement had a major effect on the subsequent animals’ perception of familiar and unfamiliar humans. Negative reinforcement was rapidly associated with an increased emotional state, as revealed by heart rate measurements and behavioural observations (head movements and ears laid back position). Its use led the ponies to seek less contact with humans. On the contrary, ponies trained with positive reinforcement showed an increased interest in humans and sought contact after training. This is especially remarkable as it was reached in a maximum of 5 sessions of 1 to 3 min (i.e. 5 to 15 min) and had lasting effects (visible after 5 months). Even learning was positively influenced by positive reinforcement. Overall, horses seem capable of associating humans to particular experiences and display extended long-term memory abilities. |
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Springer Berlin / Heidelberg |
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1435-9448 |
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Equine Behaviour @ team @ |
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5175 |
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Author |
Cowley, J.J.; Griesel, R.D. |
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Title |
The effect on growth and behaviour of rehabilitating first and second generation low protein rats |
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Journal Article |
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Year |
1966 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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Volume |
14 |
Issue |
4 |
Pages |
506-517 |
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Keywords |
Animals; *Behavior, Animal; Diet Therapy; Dietary Proteins; Female; *Growth; Humans; Intelligence; Learning; Male; Mental Retardation/etiology; Protein Deficiency/*therapy; Rats |
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0003-3472 |
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PMID:6008473 |
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Equine Behaviour @ team @ |
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4119 |
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Author |
Schwartz, B.L.; Evans, S. |
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Title |
Episodic memory in primates |
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Journal Article |
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Year |
2001 |
Publication |
American journal of primatology |
Abbreviated Journal |
Am. J. Primatol. |
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Volume |
55 |
Issue |
2 |
Pages |
71-85 |
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Animals; Behavior, Animal; *Discrimination Learning; Hominidae/*psychology; Humans; *Memory; Self Concept |
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Abstract |
Episodic memory refers to a system of memory with the capacity to recollect specific events from an individual's life. Some psychologists have suggested that episodic memory is a uniquely human phenomenon. We challenge that idea and present evidence that great apes and other primates may possess episodic-like memory. We review criteria developed to assess episodic-like memory in nonhumans, and how they apply to primates. In particular, we discuss the criteria of Clayton et al. [2001], who stated that episodic-like memory is based on the retrieval of multiple and integrated components of an event. We then review eight studies examining memory in great apes and apply the Clayton et al. criteria to each of them. We summarize the evidence that is compatible with the existence of episodic-like memory, although none of the data completely satisfy the Clayton et al. criteria. Morover, feelings of pastness and feelings of confidence, which mark episodic memory in humans, have not been empirically addressed in nonhuman primates. Future studies should be directed at these aspects of memory in primates. We speculate on the functional significance of episodic memory in nonhuman primates. |
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Dept of Psychology, Florida International University, Miami, Florida 33199, USA. SchwartB@fiu.edu |
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0275-2565 |
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PMID:11668526 |
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Equine Behaviour @ team @ |
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4115 |
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Author |
Heath-Lange, S.; Ha, J.C.; Sackett, G.P. |
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Behavioral measurement of temperament in male nursery-raised infant macaques and baboons |
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Journal Article |
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Year |
1999 |
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American journal of primatology |
Abbreviated Journal |
Am. J. Primatol. |
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Volume |
47 |
Issue |
1 |
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43-50 |
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Keywords |
Age Factors; Animal Technicians; Animals; Animals, Newborn/psychology; Behavior, Animal/*physiology; Defecation; Facial Expression; Humans; Irritable Mood; Macaca fascicularis/*psychology; Male; Papio/*psychology; Sex Characteristics; Species Specificity; Temperament/*physiology; Urination; Vocalization, Animal; Weaning |
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We define temperament as an individual's set of characteristic behavioral responses to novel or challenging stimuli. This study adapted a temperament scale used with rhesus macaques by Schneider and colleagues [American Journal of Primatology 25:137-155, 1991] for use with male pigtailed macaque (Macaca nemestrina, n = 7), longtailed macaque (M. fascicularis, n = 3), and baboon infants (Papio cynocephalus anubis, n = 4). Subjects were evaluated twice weekly for the first 5 months of age during routine removal from their cages for weighing. Behavioral measures were based on the subject's interactions with a familiar human caretaker and included predominant state before capture, response to capture, contact latency, resistance to tester's hold, degree of clinging, attention to environment, defecation/urination, consolability, facial expression, vocalizations, and irritability. Species differences indicated that baboons were more active than macaques in establishing or terminating contact with the tester. Temperament scores decreased over time for the variables Response to Capture and Contact Latency, indicating that as they grew older, subjects became less reactive and more bold in their interactions with the tester. Temperament scores changed slowly with age, with greater change occurring at younger ages. The retention of variability in reactivity between and within species may be advantageous for primates, reflecting the flexibility necessary to survive in a changing environment. |
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Department of Psychology and Regional Primate Research Center, University of Washington, Seattle, USA. crgsjh@vmmc.org |
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0275-2565 |
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PMID:9888720 |
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Equine Behaviour @ team @ |
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4117 |
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Author |
Nettle, D. |
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Title |
The evolution of personality variation in humans and other animals |
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Journal Article |
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Year |
2006 |
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The American Psychologist |
Abbreviated Journal |
Am Psychol |
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61 |
Issue |
6 |
Pages |
622-631 |
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Animals; Birds; *Evolution; Female; Fishes; Humans; Insects; Male; Personality/*genetics/*physiology |
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A comprehensive evolutionary framework for understanding the maintenance of heritable behavioral variation in humans is yet to be developed. Some evolutionary psychologists have argued that heritable variation will not be found in important, fitness-relevant characteristics because of the winnowing effect of natural selection. This article propounds the opposite view. Heritable variation is ubiquitous in all species, and there are a number of frameworks for understanding its persistence. The author argues that each of the Big Five dimensions of human personality can be seen as the result of a trade-off between different fitness costs and benefits. As there is no unconditionally optimal value of these trade-offs, it is to be expected that genetic diversity will be retained in the population. |
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University of Newcastle, Newcastle, United Kingdom. daniel.nettle@ncl.ac.uk |
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0003-066X |
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PMID:16953749 |
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Equine Behaviour @ team @ |
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4105 |
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Author |
Neuringer, A. |
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Reinforced variability in animals and people: implications for adaptive action |
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Journal Article |
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2004 |
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The American Psychologist |
Abbreviated Journal |
Am Psychol |
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59 |
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9 |
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891-906 |
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Animals; Behavior, Animal; *Choice Behavior; Conditioning, Operant; Creativeness; Discrimination (Psychology); Humans; Memory; Problem Solving; *Reinforcement (Psychology) |
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Although reinforcement often leads to repetitive, even stereotyped responding, that is not a necessary outcome. When it depends on variations, reinforcement results in responding that is diverse, novel, indeed unpredictable, with distributions sometimes approaching those of a random process. This article reviews evidence for the powerful and precise control by reinforcement over behavioral variability, evidence obtained from human and animal-model studies, and implications of such control. For example, reinforcement of variability facilitates learning of complex new responses, aids problem solving, and may contribute to creativity. Depression and autism are characterized by abnormally repetitive behaviors, but individuals afflicted with such psychopathologies can learn to vary their behaviors when reinforced for so doing. And reinforced variability may help to solve a basic puzzle concerning the nature of voluntary action. |
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Department of Psychology, Reed College, Portland, OR 97202, USA. allen.neuringer@reed.edu |
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0003-066X |
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PMID:15584823 |
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Equine Behaviour @ team @ |
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4106 |
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