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Author (up) Akins, C.K.; Klein, E.D.; Zentall, T.R.
Title Imitative learning in Japanese quail (Coturnix japonica) using the bidirectional control procedure Type Journal Article
Year 2002 Publication Animal learning & behavior Abbreviated Journal Anim Learn Behav
Volume 30 Issue 3 Pages 275-281
Keywords Animals; Attention; Behavior, Animal; Coturnix; *Discrimination Learning; *Imitative Behavior; Male; Smell
Abstract In the bidirectional control procedure, observers are exposed to a conspecific demonstrator responding to a manipulandum in one of two directions (e.g., left vs. right). This procedure controls for socially mediated effects (the mere presence of a conspecific) and stimulus enhancement (attention drawn to a manipulandum by its movement), and it has the added advantage of being symmetrical (the two different responses are similar in topography). Imitative learning is demonstrated when the observers make the response in the direction that they observed it being made. Recently, however, it has been suggested that when such evidence is found with a predominantly olfactory animal, such as the rat, it may result artifactually from odor cues left on one side of the manipulandum by the demonstrator. In the present experiment, we found that Japanese quail, for which odor cues are not likely to play a role, also showed significant correspondence between the direction in which the demonstrator and the observer push a screen to gain access to reward. Furthermore, control quail that observed the screen move, when the movement of the screen was not produced by the demonstrator, did not show similar correspondence between the direction of screen movement observed and that performed by the observer. Thus, with the appropriate control, the bidirectional procedure appears to be useful for studying imitation in avian species.
Address University of Kentucky, Lexington, Kentucky 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 0090-4996 ISBN Medium
Area Expedition Conference
Notes PMID:12391793 Approved no
Call Number refbase @ user @ Serial 239
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Author (up) Klein, E.D.; Bhatt, R.S.; Zentall, T.R.
Title Contrast and the justification of effort Type Journal Article
Year 2005 Publication Psychonomic bulletin & review Abbreviated Journal Psychon Bull Rev
Volume 12 Issue 2 Pages 335-339
Keywords Awareness; *Cognition; *Discrimination (Psychology); Female; Humans; Male; Questionnaires; *Visual Perception
Abstract When humans are asked to evaluate rewards or outcomes that follow unpleasant (e.g., high-effort) events, they often assign higher value to that reward. This phenomenon has been referred to as cognitive dissonance or justification of effort. There is now evidence that a similar phenomenon can be found in nonhuman animals. When demonstrated in animals, however, it has been attributed to contrast between the unpleasant high effort and the conditioned stimulus for food. In the present experiment, we asked whether an analogous effect could be found in humans under conditions similar to those found in animals. Adult humans were trained to discriminate between shapes that followed a high-effort versus a low-effort response. In test, participants were found to prefer shapes that followed the high-effort response in training. These results suggest the possibility that contrast effects of the sort extensively studied in animals may play a role in cognitive dissonance and other related phenomena in humans.
Address University of Kentucky, Lexington, KY 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 1069-9384 ISBN Medium
Area Expedition Conference
Notes PMID:16082815 Approved no
Call Number refbase @ user @ Serial 223
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Author (up) Klein, E.D.; Zentall, T.R.
Title Imitation and affordance learning by pigeons (Columba livia) Type Journal Article
Year 2003 Publication Journal of comparative psychology (Washington, D.C. : 1983) Abbreviated Journal J Comp Psychol
Volume 117 Issue 4 Pages 414-419
Keywords Animals; *Behavior, Animal; Columbidae; Cues; *Imitative Behavior; *Learning; Odors; Sound
Abstract The bidirectional control procedure was used to determine whether pigeons (Columba livia) would imitate a demonstrator that pushed a sliding screen for food. One group of observers saw a trained demonstrator push a sliding screen door with its beak (imitation group), whereas 2 other groups watched the screen move independently (possibly learning how the environment works) with a conspecific either present (affordance learning with social facilitation) or absent (affordance learning alone). A 4th group could not see the screen being pushed (sound and odor control). Imitation was evidenced by the finding that pigeons that saw a demonstrator push the screen made a higher proportion of matching screen pushes than observers in 2 appropriate control conditions. Further, observers that watched a screen move without a demonstrator present made a significantly higher proportion of matching screen pushes than would be expected by chance. Thus, these pigeons were capable of affordance learning.
Address Department of Psychology, University of Kentucky, Lexington, KY 40506-004, 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 0735-7036 ISBN Medium
Area Expedition Conference
Notes PMID:14717643 Approved no
Call Number refbase @ user @ Serial 234
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Author (up) Nguyen, N.H.; Klein, E.D.; Zentall, T.R.
Title Imitation of a two-action sequence by pigeons Type Journal Article
Year 2005 Publication Psychonomic bulletin & review Abbreviated Journal Psychon Bull Rev
Volume 12 Issue 3 Pages 514-518
Keywords Animals; Behavior, Animal; *Cognition; Columbidae; *Imitative Behavior; *Learning
Abstract Developmental psychologists have described imitation as a process that suggests perspective-taking abilities. However, imitative behavior has been found in animals, which are generally not considered capable of taking the perspective of another. Previous studies with birds have demonstrated the imitation of a single response (sometimes referred to as action-level imitation). In the present experiment, we examined the extent to which pigeons would imitate an unfamiliar sequence of two behaviors (sometimes referred to as program-level imitation). Our results indicate that, although there are individual differences, pigeons show a significant tendency to match a demonstrated sequence of behavior involving, first, a response to a treadle (pecking at it or stepping on it) and, second, pushing aside a screen that blocks access to food (a left-vs.-right push).
Address University of Kentucky, Lexington, Kentucky 40506, 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 1069-9384 ISBN Medium
Area Expedition Conference
Notes PMID:16235638 Approved no
Call Number refbase @ user @ Serial 221
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Author (up) Singer, R.A.; Klein, E.D.; Zentall, T.R.
Title Use of a single-code/default strategy by pigeons to acquire duration sample discriminations Type Journal Article
Year 2006 Publication Learning & behavior : a Psychonomic Society publication Abbreviated Journal Learn Behav
Volume 34 Issue 4 Pages 340-347
Keywords Animals; Behavior, Animal/*physiology; Columbidae; *Discrimination (Psychology); *Reaction Time; Retention (Psychology); *Signal Detection (Psychology)
Abstract Past evidence that pigeons may adopt a single-code/default strategy to solve duration sample discriminations may be attributable to the similarity between the intertrial interval (ITI) and the retention interval. The present experiments tested whether pigeons would adopt a single-code/default strategy when possible ITI-retention-interval ambiguity was eliminated and sample salience was increased. Previous studies of duration sample discriminations that have purported to show evidence for the use of a single-code/default coding strategy have used durations of 0, 2, and 10 sec (Zentall, Klein, and Singer, 2004). However, the results of Experiment 1 suggest that the use of a 0-sec sample may produce an artifact resulting in inadvertent present/absent sample matching. In Experiment 2, when pigeons were trained with three nonzero duration samples (2, 8, and 32 sec), clear evidence for the use of a single-code/default strategy was found.
Address Department of Psychology, University of Kentucky, Lexington, KY 40506-0044, USA. rasing2@uky.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:17330523 Approved no
Call Number refbase @ user @ Serial 215
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Author (up) Zentall, T.R.; Klein, E.D.; Singer, R.A.
Title Evidence for detection of one duration sample and default responding to other duration samples by pigeons may result from an artifact of retention-test ambiguity Type Journal Article
Year 2004 Publication Journal of experimental psychology. Animal behavior processes Abbreviated Journal J Exp Psychol Anim Behav Process
Volume 30 Issue 2 Pages 129-134
Keywords Animals; Artifacts; Association Learning; Columbidae; *Discrimination Learning; *Recognition (Psychology); *Retention (Psychology); *Time Perception; *Transfer (Psychology)
Abstract S. C. Gaitan and J. T. Wixted (2000) proposed that when pigeons are trained on a conditional discrimination to associate 1 duration sample with 1 comparison and 2 other duration samples with a 2nd comparison, they detect only the single duration, and on trials involving either of the 2 other duration samples, they respond to the other comparison by default. In 2 experiments, the authors show instead that pigeons lend to treat the retention intervals (such as those used by Gaitan and Wixted) as intertrial intervals, and thus, they tend to treat all trials with a delay as 0-s sample trials. The authors tested this hypothesis by showing that divergent retention functions do not appear when the retention interval is discriminably different from the intertrial interval.
Address Department of Psychology, University of Kentucky, Lexington, KY 40506-0044, USA. zentall@uky.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:15078122 Approved no
Call Number refbase @ user @ Serial 232
Permanent link to this record