Records |
Author |
Brannon, E.M.; Terrace, H.S. |
Title |
Representation of the numerosities 1-9 by rhesus macaques (Macaca mulatta) |
Type |
Journal Article |
Year |
2000 |
Publication |
Journal of Experimental Psychology. Animal Behavior Processes |
Abbreviated Journal |
J Exp Psychol Anim Behav Process |
Volume |
26 |
Issue |
1 |
Pages |
31-49 |
Keywords |
Animals; *Cognition; Macaca mulatta/*psychology; *Mathematics; Perception; Reaction Time |
Abstract |
Three rhesus monkeys (Macaca mulatta) were trained to respond to exemplars of 1, 2, 3, and 4 in an ascending, descending, or a nonmonotonic numerical order (1-->2-->3-->4, 4-->3-->2--1, 3-->1-->4-->2). The monkeys were then tested on their ability to order pairs of the novel numerosities 5-9. In Experiment 1, all 3 monkeys ordered novel exemplars of the numerosities 1-4 in ascending or descending order. The attempt to train a nonmonotonic order (3-->1-->4-->2) failed. In Experiment 2A, the 2 monkeys who learned the ascending numerical rule ordered pairs of the novel numerosities 5-9 on unreinforced trials. The monkey who learned the descending numerical rule failed to extrapolate the descending rule to new numerosities. In Experiment 2B all 3 monkeys ordered novel exemplars of pairs of the numerosities 5-9. Accuracy and latency of responding revealed distance and magnitude effects analogous to previous findings with human participants (R. S. Moyer & T. K. Landaeur, 1967). Collectively these studies show that monkeys represent the numerosities 1-9 on at least an ordinal scale. |
Address |
Department of Psychology, Columbia University, New York, New York 10027, USA. liz@psych.columbia.edu |
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0097-7403 |
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PMID:10650542 |
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Equine Behaviour @ team @ |
Serial |
2775 |
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Author |
Crystal, J.D. |
Title |
Systematic nonlinearities in the perception of temporal intervals |
Type |
Journal Article |
Year |
1999 |
Publication |
Journal of Experimental Psychology. Animal Behavior Processes |
Abbreviated Journal |
J Exp Psychol Anim Behav Process |
Volume |
25 |
Issue |
1 |
Pages |
3-17 |
Keywords |
Animals; *Attention; Awareness; Discrimination Learning; Male; Neural Networks (Computer); *Nonlinear Dynamics; Rats; Rats, Sprague-Dawley; Sensory Thresholds; *Time Perception |
Abstract |
Rats judged time intervals in a choice procedure in which accuracy was maintained at approximately 75% correct. Sensitivity to time (d') was approximately constant for short durations 2.0-32.0 s with 1.0- or 2.0-s spacing between intervals (n = 5 in each group, Experiment 1), 2.0-50.0 s with 2.0-s spacing (n = 2, Experiment 1), and 0.1-2.0 s with 0.1- or 0.2-s spacing (n = 6 in each group, Experiment 2). However, systematic departures from average sensitivity were observed, with local maxima in sensitivity at approximately 0.3, 1.2, 10.0, 24.0, and 36.0 s. Such systematic departures from an approximately constant d' are predicted by a connectionist theory of time with multiple oscillators and may require a modification of the linear timing hypothesis of scalar timing theory. |
Address |
Department of Psychology, Brown University, USA. jdcrys@facstaff.wm.edu |
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0097-7403 |
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PMID:9987854 |
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no |
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Equine Behaviour @ team @ |
Serial |
2776 |
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Author |
Brodbeck, D.R. |
Title |
Picture fragment completion: priming in the pigeon |
Type |
Journal Article |
Year |
1997 |
Publication |
Journal of Experimental Psychology. Animal Behavior Processes |
Abbreviated Journal |
J Exp Psychol Anim Behav Process |
Volume |
23 |
Issue |
4 |
Pages |
461-468 |
Keywords |
Animals; *Attention; *Awareness; Columbidae; *Mental Recall; *Pattern Recognition, Visual; *Perceptual Masking; Problem Solving |
Abstract |
It has been suggested that the system behind implicit memory in humans is evolutionarily old and that animals should readily show priming. In Experiment 1, a picture fragment completion test was used to test priming in pigeons. After pecking a warning stimulus, pigeons were shown 2 partially obscured pictures from different categories and were always reinforced for choosing a picture from one of the categories. On control trials, the warning stimulus was a picture of some object (not from the S+ or S- category), on study trials the warning stimulus was a picture to be categorized on the next trial, and on test trials the warning stimulus was a randomly chosen picture and the S+ picture was the warning stimulus seen on the previous trial. Categorization was better on study and test trials than on control trials. Experiment 2 ruled out the possibility that the priming effect was caused by the pigeons' responding to familiarity by using warning stimuli from both S+ and S- categories. Experiment 3 investigated the time course of the priming effect. |
Address |
Department of Psychology, University of Western Ontario, London, Ontario, Canada. brodbeck@thunderbird.auc.laurentian.ca |
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0097-7403 |
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PMID:9411019 |
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Equine Behaviour @ team @ |
Serial |
2777 |
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Author |
Church, R.M. |
Title |
Quantitative models of animal learning and cognition |
Type |
Journal Article |
Year |
1997 |
Publication |
Journal of Experimental Psychology. Animal Behavior Processes |
Abbreviated Journal |
J Exp Psychol Anim Behav Process |
Volume |
23 |
Issue |
4 |
Pages |
379-389 |
Keywords |
Animals; *Behavior, Animal; *Cognition; Computer Simulation; *Learning; *Models, Psychological; *Models, Theoretical |
Abstract |
This article reviews the prerequisites for quantitative models of animal learning and cognition, describes the types of models, provides a rationale for the development of such quantitative models, describes criteria for their evaluation, and makes recommendations for the next generation of quantitative models. A modular approach to the development of models is described in which a procedure is considered as a generator of stimuli and a model is considered as a generator of responses. The goal is to develop models that, in combination with many different procedures, produce sequences of times of occurrence of events (stimuli and responses) that are indistinguishable from those produced by the animal under many experimental procedures and data analysis techniques. |
Address |
Department of Psychology, Brown University, Providence, Rhode Island 02912, USA. russell_church@brown.edu |
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0097-7403 |
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PMID:9335132 |
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Equine Behaviour @ team @ |
Serial |
2778 |
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Author |
Wasserman, E.A. |
Title |
The science of animal cognition: past, present, and future |
Type |
Journal Article |
Year |
1997 |
Publication |
Journal of Experimental Psychology. Animal Behavior Processes |
Abbreviated Journal |
J Exp Psychol Anim Behav Process |
Volume |
23 |
Issue |
2 |
Pages |
123-135 |
Keywords |
Animal Communication; Animal Population Groups/*psychology; Animals; Behavior, Animal; Behavioral Sciences/*trends; *Cognition; Evolution; Forecasting; Humans; Intelligence |
Abstract |
The field of animal cognition is strongly rooted in the philosophy of mind and in the theory of evolution. Despite these strong roots, work during the most famous and active period in the history of our science-the 1930s, 1940s, and 1950s-may have diverted us from the very questions that were of greatest initial interest to the comparative analysis of learning and behavior. Subsequently, the field has been in steady decline despite its increasing breadth and sophistication. Renewal of the field of animal cognition may require a return to the original questions of animal communication and intelligence using the most advanced tools of modern psychological science. Reclaiming center stage in contemporary psychology will be difficult; planning that effort with a host of strategies should enhance the chances of success. |
Address |
Department of Psychology, University of Iowa, Iowa City 52242-1407, USA. ed-wasserman@uiowa.edu |
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0097-7403 |
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PMID:9095537 |
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no |
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Equine Behaviour @ team @ |
Serial |
2779 |
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Author |
Wasserman, E.A.; Gagliardi, J.L.; Cook, B.R.; Kirkpatrick-Steger, K.; Astley, S.L.; Biederman, I. |
Title |
The pigeon's recognition of drawings of depth-rotated stimuli |
Type |
Journal Article |
Year |
1996 |
Publication |
Journal of Experimental Psychology. Animal Behavior Processes |
Abbreviated Journal |
J Exp Psychol Anim Behav Process |
Volume |
22 |
Issue |
2 |
Pages |
205-221 |
Keywords |
Animals; Cognition/*physiology; Columbidae; Discrimination (Psychology); Form Perception/*physiology; Learning/*physiology; Photic Stimulation; Rotation |
Abstract |
Four experiments used a four-choice discrimination learning paradigm to explore the pigeon's recognition of line drawings of four objects (an airplane, a chair, a desk lamp, and a flashlight) that were rotated in depth. The pigeons reliably generalized discriminative responding to pictorial stimuli over all untrained depth rotations, despite the bird's having been trained at only a single depth orientation. These generalization gradients closely resembled those found in prior research that used other stimulus dimensions. Increasing the number of different vantage points in the training set from one to three broadened the range of generalized testing performance, with wider spacing of the training orientations more effectively broadening generalized responding. Template and geon theories of visual recognition are applied to these empirical results. |
Address |
Department of Psychology, University of Iowa, Iowa City 52242-1407, USA. ed-wasserman@uiowa.educ |
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0097-7403 |
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PMID:8618103 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2780 |
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Author |
Boysen, S.T.; Bernston, G.G.; Hannan, M.B.; Cacioppo, J.T. |
Title |
Quantity-based interference and symbolic representations in chimpanzees (Pan troglodytes) |
Type |
Journal Article |
Year |
1996 |
Publication |
Journal of Experimental Psychology. Animal Behavior Processes |
Abbreviated Journal |
J Exp Psychol Anim Behav Process |
Volume |
22 |
Issue |
1 |
Pages |
76-86 |
Keywords |
Animals; Behavior, Animal; Cognition; *Discrimination Learning; Female; Male; *Pan troglodytes; *Reinforcement (Psychology); Task Performance and Analysis |
Abstract |
Five chimpanzees with training in counting and numerical skills selected between 2 arrays of different amounts of candy or 2 Arabic numerals. A reversed reinforcement contingency was in effect, in which the selected array was removed and the subject received the nonselected candies (or the number of candies represented by the nonselected Arabic numeral). Animals were unable to maximize reward by selecting the smaller array when candies were used as array elements. When Arabic numerals were substituted for the candy arrays, all animals showed an immediate shift to a more optimal response strategy of selecting the smaller numeral, thereby receiving the larger reward. Results suggest that a response disposition to the high-incentive candy stimuli introduced a powerful interference effect on performance, which was effectively overridden by the use of symbolic representations. |
Address |
Ohio State University, Department of Psychology, Ohio State University, Columbus 43210-1222, USA |
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0097-7403 |
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PMID:8568498 |
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no |
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Equine Behaviour @ team @ |
Serial |
2781 |
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Author |
Fetterman, J.G. |
Title |
Dimensions of stimulus complexity |
Type |
Journal Article |
Year |
1996 |
Publication |
Journal of Experimental Psychology. Animal Behavior Processes |
Abbreviated Journal |
J Exp Psychol Anim Behav Process |
Volume |
22 |
Issue |
1 |
Pages |
3-18 |
Keywords |
Animals; *Behavior, Animal; Cognition; *Learning; Memory; Time Factors |
Abstract |
Animal learning research has increasingly used complex stimuli that approximate natural objects, events, and locations, a trend that has accompanied a resurgence of interest in the role of cognitive factors in learning. Accounts of complex stimulus control have focused mainly on cognitive mechanisms and largely ignored the contribution of stimulus information to perception and memory for complex events. It is argued here that research on animal learning stands to benefit from a more detailed consideration of the stimulus and that James Gibson's stimulus-centered theory of perception serves as a useful framework for analyses of complex stimuli. Several issues in the field of animal learning and cognition are considered from the Gibsonian perspective on stimuli, including the fundamental problem of defining the effective stimulus. |
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Department of Psychology, Indiana University-Purdue University, Indianapolis 46202, USA |
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0097-7403 |
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PMID:8568494 |
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Equine Behaviour @ team @ |
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2782 |
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Author |
Boysen, S.T.; Berntson, G.G. |
Title |
Responses to quantity: perceptual versus cognitive mechanisms in chimpanzees (Pan troglodytes) |
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Journal Article |
Year |
1995 |
Publication |
Journal of Experimental Psychology. Animal Behavior Processes |
Abbreviated Journal |
J Exp Psychol Anim Behav Process |
Volume |
21 |
Issue |
1 |
Pages |
82-86 |
Keywords |
Animals; Behavior, Animal; Choice Behavior; Cognition/*physiology; Female; *Pan troglodytes; Perception/*physiology; Reinforcement (Psychology); Task Performance and Analysis |
Abstract |
Two chimpanzees were trained to select among 2 different amounts of candy (1-6 items). The task was designed so that selection of either array by the active (selector) chimpanzee resulted in that array being given to the passive (observer) animal, with the remaining (nonselected) array going to the selector. Neither animal was able to select consistently the smaller array, which would reap the larger reward. Rather, both animals preferentially selected the larger array, thereby receiving the smaller number of reinforcers. When Arabic numerals were substituted for the food arrays, however, the selector animal evidenced more optimal performance, immediately selecting the smaller numeral and thus receiving the larger reward. These findings suggest that a basic predisposition to respond to the perceptual-motivational features of incentive stimuli can interfere with task performance and that this interference can be overridden when abstract symbols serve as choice stimuli. |
Address |
Comparative Cognition Project, Ohio State University, Columbus 43210-1222 |
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0097-7403 |
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PMID:7844508 |
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Equine Behaviour @ team @ |
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2783 |
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Author |
Rumbaugh, D.M.; Savage-Rumbaugh, S.; Hegel, M.T. |
Title |
Summation in the chimpanzee (Pan troglodytes) |
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Journal Article |
Year |
1987 |
Publication |
Journal of Experimental Psychology. Animal Behavior Processes |
Abbreviated Journal |
J Exp Psychol Anim Behav Process |
Volume |
13 |
Issue |
2 |
Pages |
107-115 |
Keywords |
Animals; Choice Behavior; *Cognition; Male; *Mathematics; *Pan troglodytes; Visual Perception |
Abstract |
In this research, we asked whether 2 chimpanzee (Pan troglodytes) subjects could reliably sum across pairs of quantities to select the greater total. Subjects were allowed to choose between two trays of chocolates. Each tray contained two food wells. To select the tray containing the greater number of chocolates, it was necessary to sum the contents of the food wells on each tray. In experiments where food wells contained from zero to four chocolates, the chimpanzees chose the greater value of the summed wells on more than 90% of the trials. In the final experiment, the maximum number of chocolates assigned to a food well was increased to five. Choice of the tray containing the greater sum still remained above 90%. In all experiments, subjects reliably chose the greater sum, even though on many trials a food well on the “incorrect” tray held more chocolates than either single well on the “correct” tray. It was concluded that without any known ability to count, these chimpanzees used some process of summation to combine spatially separated quantities. Speculation regarding the basis for summation includes consideration of perceptual fusion of pairs of quantities and subitization. |
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0097-7403 |
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PMID:3572305 |
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Equine Behaviour @ team @ |
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2785 |
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