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Author (down) Zentall, T.R.; Sherburne, L.M.
Title Transfer of value from S+ to S- in a simultaneous discrimination Type Journal Article
Year 1994 Publication Journal of experimental psychology. Animal behavior processes Abbreviated Journal J Exp Psychol Anim Behav Process
Volume 20 Issue 2 Pages 176-183
Keywords Animals; *Appetitive Behavior; Attention; Color Perception; Columbidae; *Discrimination Learning; Female; Male; Motivation; Orientation; Pattern Recognition, Visual; *Problem Solving; *Reinforcement Schedule; *Transfer (Psychology)
Abstract Value transfer theory has been proposed to account for transitive inference effects (L. V. Fersen, C. D. L. Wynne, J. D. Delius, & J. E. R. Staddon, 1991), in which following training on 4 simultaneous discriminations (A+B-, B+C-, C+D-, D+E-) pigeons show a preference for B over D. According to this theory, some of the value of reinforcement acquired by each S+ transfers to the S-. In the transitive inference experiment, C (associated with both reward and nonreward) can transfer less value to D than A (associated only with reward) can transfer to B. Support for value transfer theory was demonstrated in 2 experiments in which an S- presented in the context of a stimulus to which responses were always reinforced (S+) was preferred over an S- presented in the context of a stimulus to which responses were sometimes reinforced (S +/-).
Address Department of Psychology, University of Kentucky, Lexington 40506
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ISSN 0097-7403 ISBN Medium
Area Expedition Conference
Notes PMID:8189186 Approved no
Call Number refbase @ user @ Serial 258
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Author (down) 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
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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 (down) Weir, A.A.S.; Kacelnik, A.
Title A New Caledonian crow (Corvus moneduloides) creatively re-designs tools by bending or unbending aluminium strips Type Journal Article
Year 2006 Publication Animal Cognition Abbreviated Journal Anim. Cogn.
Volume 9 Issue 4 Pages 317-334
Keywords Animals; *Comprehension; *Crows; Female; Learning; *Motor Skills; *Problem Solving; *Tool Use Behavior
Abstract Previous observations of a New Caledonian crow (Corvus moneduloides) spontaneously bending wire and using it as a hook [Weir et al. (2002) Science 297:981] have prompted questions about the extent to which these animals 'understand' the physical causality involved in how hooks work and how to make them. To approach this issue we examine how the same subject (“Betty”) performed in three experiments with novel material, which needed to be either bent or unbent in order to function to retrieve food. These tasks exclude the possibility of success by repetition of patterns of movement similar to those employed before. Betty quickly developed novel techniques to bend the material, and appropriately modified it on four of five trials when unbending was required. She did not mechanically apply a previously learned set of movements to the new situations, and instead sought new solutions to each problem. However, the details of her behaviour preclude concluding definitely that she understood and planned her actions: in some cases she probed with the unmodified tools before modifying them, or attempted to use the unmodified (unsuitable) end of the tool after modification. Gauging New Caledonian crows' level of understanding is not yet possible, but the observed behaviour is consistent with a partial understanding of physical tasks at a level that exceeds that previously attained by any other non-human subject, including apes.
Address Department of Zoology, South Parks Road, Oxford, OX1 3PS, UK. alex.weir@magdalen.oxon.org
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Series Volume Series Issue Edition
ISSN 1435-9448 ISBN Medium
Area Expedition Conference
Notes PMID:17024509 Approved no
Call Number Equine Behaviour @ team @ Serial 2436
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Author (down) Watanabe, S.; Huber, L.
Title Animal logics: decisions in the absence of human language Type Journal Article
Year 2006 Publication Animal Cognition Abbreviated Journal Anim. Cogn.
Volume 9 Issue 4 Pages 235-245
Keywords *Animal Communication; Animals; Behavior, Animal/*physiology; Brain/physiology; Cognition/*physiology; Decision Making/*physiology; Evolution; Humans; *Language; *Logic; Problem Solving/physiology
Abstract Without Abstract
Address Department of Psychology, Keio University, Mita 2-15-45, Minato-ku, Tokyo 108, Japan. swat@flet.keio.ac.jp
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ISSN 1435-9448 ISBN Medium
Area Expedition Conference
Notes PMID:16909231 Approved no
Call Number Equine Behaviour @ team @ Serial 2453
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Author (down) Wallace, D.G.; Hamilton, D.A.; Whishaw, I.Q.
Title Movement characteristics support a role for dead reckoning in organizing exploratory behavior Type Journal Article
Year 2006 Publication Animal Cognition Abbreviated Journal Anim. Cogn.
Volume 9 Issue 3 Pages 219-228
Keywords Animals; *Association Learning; *Exploratory Behavior; Female; *Motor Activity; *Orientation; Problem Solving; Rats; Rats, Long-Evans; Space Perception; *Spatial Behavior
Abstract Rat exploration is an organized series of trips. Each exploratory trip involves an outward tour from the refuge followed by a return to the refuge. A tour consists of a sequence of progressions with variable direction and speed concatenated by stops, whereas the return consists of a single direct progression. We have argued that processing self-movement information generated on the tour allows a rat to plot the return to the refuge. This claim has been supported by observing consistent differences between tour and return segments independent of ambient cue availability; however, this distinction was based on differences in movement characteristics derived from multiple progressions and stops on the tour and the single progression on the return. The present study examines movement characteristics of the tour and return progressions under novel-dark and light conditions. Three novel characteristics of progressions were identified: (1) linear speeds and path curvature of exploratory trips are negatively correlated, (2) tour progression maximum linear speed and temporal pacing varies as a function of travel distance, and (3) return progression movement characteristics are qualitatively different from tour progressions of comparable length. These observations support a role for dead reckoning in organizing exploratory behavior.
Address Psychology Department, Northern Illinois University, DeKalb, IL 60115-2892, USA. dwallace@niu.edu
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ISSN 1435-9448 ISBN Medium
Area Expedition Conference
Notes PMID:16767471 Approved no
Call Number Equine Behaviour @ team @ Serial 2463
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Author (down) Virányi, Z.; Topál, J.; Miklósi, Á.; Csányi, V.
Title A nonverbal test of knowledge attribution: a comparative study on dogs and children Type Journal Article
Year 2006 Publication Animal Cognition Abbreviated Journal Anim. Cogn.
Volume 9 Issue 1 Pages 13-26
Keywords Animals; *Child Psychology; Child, Preschool; Cues; Dogs/*psychology; Female; Humans; Male; Nonverbal Communication; *Problem Solving; Species Specificity
Abstract The sensitivity of eleven pet dogs and eleven 2.5-year-old children to others' past perceptual access was tested for object-specificity in a playful, nonverbal task in which a human Helper's knowledge state regarding the whereabouts of a hidden toy and a stick (a tool necessary for getting the out-of-reach toy) was systematically manipulated. In the four experimental conditions the Helper either participated or was absent during hiding of the toy and the stick and therefore she knew the place(s) of (1) both the toy and the stick, (2) only the toy, (3) only the stick or (4) neither of them. The subjects observed the hiding processes, but they could not reach the objects, so they had to involve the Helper to retrieve the toy. The dogs were more inclined to signal the place of the toy in each condition and indicated the location of the stick only sporadically. However the children signalled both the location of the toy and that of the stick in those situations when the Helper had similar knowledge regarding the whereabouts of them (i.e. knew or ignored both of them), and in those conditions in which the Helper was ignorant of the whereabouts of only one object the children indicated the place of this object more often than that of the known one. At the same time however, both dogs and children signalled the place of the toy more frequently if the Helper had been absent during toy-hiding compared to those conditions when she had participated in the hiding. Although this behaviour appears to correspond with the Helper's knowledge state, even the subtle distinction made by the children can be interpreted without a casual understanding of knowledge-formation in others.
Address Department of Ethology, ELTE University Budapest, Pazmany P. setany 1/C H-1117, Hungary. zsofi.viranyi@freemail.hu
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ISSN 1435-9448 ISBN Medium
Area Expedition Conference
Notes PMID:15895261 Approved no
Call Number Equine Behaviour @ team @ Serial 2486
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Author (down) Urcuioli, P.J.; Zentall, T.R.
Title Transfer across delayed discriminations: evidence regarding the nature of prospective working memory Type Journal Article
Year 1992 Publication Journal of experimental psychology. Animal behavior processes Abbreviated Journal J Exp Psychol Anim Behav Process
Volume 18 Issue 2 Pages 154-173
Keywords Animals; *Appetitive Behavior; Attention; *Color Perception; Columbidae; *Discrimination Learning; *Mental Recall; *Pattern Recognition, Visual; Problem Solving; Retention (Psychology); *Transfer (Psychology)
Abstract Pigeons were trained successively either on 2 delayed simple discriminations or on a delayed simple discrimination followed by delayed matching-to-sample. During subsequent transfer tests, the initial stimuli from the 1st task were substituted for those in the 2nd. Performances transferred immediately if both sets of initial stimuli had been associated with the presence versus absence of food on their respective retention tests, and the direction of transfer (positive or negative) depended on whether the substitution involved stimuli with identical or different outcome associates. No transfer was found, however, when the initial stimuli were associated with different patterns of responding but food occurred at the end of every trial. These results are consistent with outcome expectancy mediation but are incompatible with response intention and retrospective coding accounts.
Address Department of Psychological Sciences, Purdue University, West Lafayette, Indiana 47907-1364
Corporate Author Thesis
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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:1583445 Approved no
Call Number refbase @ user @ Serial 260
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Author (down) Uller, C.
Title Disposition to recognize goals in infant chimpanzees Type Journal Article
Year 2004 Publication Animal Cognition Abbreviated Journal Anim. Cogn.
Volume 7 Issue 3 Pages 154-161
Keywords Analysis of Variance; Animals; Female; Fixation, Ocular; *Goals; *Intention; Male; Pan troglodytes/*psychology; Pattern Recognition, Visual; *Problem Solving; *Recognition (Psychology)
Abstract Do nonhuman primates attribute goals to others? Traditional studies with chimpanzees provide equivocal evidence for “mind reading” in nonhuman primates. Here we adopt looking time, a methodology commonly used with human infants to test infant chimpanzees. In this experiment, four infant chimpanzees saw computer-generated stimuli that mimicked a goal-directed behavior. The baby chimps performed as well as human infants, namely, they were sensitive to the trajectories of the objects, thus suggesting that chimpanzees may be endowed with a disposition to understand goal-directed behaviors. The theoretical implications of these results are discussed.
Address Department of Psychology, University of Essex, Wivenhoe Park, C04 3SQ, Colchester, UK. uller40@yahoo.com
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ISSN 1435-9448 ISBN Medium
Area Expedition Conference
Notes PMID:14685823 Approved no
Call Number Equine Behaviour @ team @ Serial 2546
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Author (down) Tebbich, S.; Seed, A.M.; Emery, N.J.; Clayton, N.S.
Title Non-tool-using rooks, Corvus frugilegus, solve the trap-tube problem Type Journal Article
Year 2007 Publication Animal Cognition Abbreviated Journal Anim. Cogn.
Volume 10 Issue 2 Pages 225-231
Keywords Animals; Behavior, Animal/*physiology; Cognition/*physiology; Crows/*physiology; Female; Male; Problem Solving/*physiology
Abstract The trap-tube problem is used to assess whether an individual is able to foresee the outcome of its actions. To solve the task, an animal must use a tool to push a piece of food out of a tube, which has a trap along its length. An animal may learn to avoid the trap through a rule based on associative processes, e.g. using the distance of trap or food as a cue, or by understanding relations between cause and effect. This task has been used to test physical cognition in a number of tool-using species, but never a non-tool-user. We developed an experimental design that enabled us to test non-tool-using rooks, Corvus frugilegus. Our modification of the task removed the cognitive requirements of active tool use but still allowed us to test whether rooks can solve the trap-tube problem, and if so how. Additionally, we developed two new control tasks to determine whether rooks were able to transfer knowledge to similar, but novel problems, thus revealing more about the mechanisms involved in solving the task. We found that three out of seven rooks solved the modified trap-tube problem task, showing that the ability to solve the trap-tube problem is not restricted to tool-using animals. We found no evidence that the birds solved the task using an understanding of its causal properties, given that none of the birds passed the novel transfer tasks.
Address Department of Experimental Psychology, University of Cambridge, Cambridge, CB2 3EB, UK. st281@cam.ac.uk
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ISSN 1435-9448 ISBN Medium
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Notes PMID:17171360 Approved no
Call Number Equine Behaviour @ team @ Serial 2429
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Author (down) Suda, C.; Call, J.
Title Piagetian conservation of discrete quantities in bonobos (Pan paniscus), chimpanzees (Pan troglodytes), and orangutans (Pongo pygmaeus) Type Journal Article
Year 2005 Publication Animal Cognition Abbreviated Journal Anim. Cogn.
Volume 8 Issue 4 Pages 220-235
Keywords Animals; *Behavior, Animal; Female; Hominidae/*psychology; Male; Pan paniscus; Pan troglodytes; Pongo pygmaeus; *Problem Solving
Abstract This study investigated whether physical discreteness helps apes to understand the concept of Piagetian conservation (i.e. the invariance of quantities). Subjects were four bonobos, three chimpanzees, and five orangutans. Apes were tested on their ability to conserve discrete/continuous quantities in an over-conservation procedure in which two unequal quantities of edible rewards underwent various transformations in front of subjects. Subjects were examined to determine whether they could track the larger quantity of reward after the transformation. Comparison between the two types of conservation revealed that tests with bonobos supported the discreteness hypothesis. Bonobos, but neither chimpanzees nor orangutans, performed significantly better with discrete quantities than with continuous ones. The results suggest that at least bonobos could benefit from the discreteness of stimuli in their acquisition of conservation skills.
Address Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany. suda@eva.mpg.de
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ISSN 1435-9448 ISBN Medium
Area Expedition Conference
Notes PMID:15692813 Approved no
Call Number Equine Behaviour @ team @ Serial 2494
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