Records |
Author |
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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0097-7403 |
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PMID:8189186 |
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no |
Call Number |
refbase @ user @ |
Serial |
258 |
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Author |
Roper, K.L.; Zentall, T.R. |
Title |
Directed forgetting in animals |
Type |
Journal Article |
Year |
1993 |
Publication |
Psychological bulletin |
Abbreviated Journal |
Psychol Bull |
Volume |
113 |
Issue |
3 |
Pages |
513-532 |
Keywords |
Animals; Behavior, Animal; *Cognition; Columbidae; Conditioning (Psychology); Discrimination Learning; Female; Humans; Male; Memory Disorders/*psychology; Reinforcement (Psychology); Task Performance and Analysis |
Abstract |
Directed-forgetting research with animals suggests that animals show disrupted test performance only under certain conditions. Important variables are (a) whether during training, the cue to forget (F cue) signals nonreward (i.e., that the trial is over) versus reward (i.e., that reinforcement can be obtained) and (b) given that reinforcement can be obtained on F-cue trials, whether the post-F-cue response pattern is compatible with the baseline memory task. It is proposed that some findings of directed forgetting can be attributed to trained response biases, whereas others may be attributable perhaps to frustration-produced interference. It is suggested that directed forgetting in animals should be studied using procedures similar to those used to study directed forgetting in humans. This can be accomplished by presenting, within a trial, both to-be-remembered and to-be-forgotten material. |
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Department of Psychology, University of Kentucky, Lexington 40506 |
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ISSN |
0033-2909 |
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Notes |
PMID:8316612 |
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no |
Call Number |
refbase @ user @ |
Serial |
259 |
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Author |
Zentall, S.S.; Zentall, T.R. |
Title |
Hyperactivity ratings: statistical regression provides an insufficient explanation of practice effects |
Type |
Journal Article |
Year |
1986 |
Publication |
Journal of pediatric psychology |
Abbreviated Journal |
J Pediatr Psychol |
Volume |
11 |
Issue |
3 |
Pages |
393-396 |
Keywords |
Attention Deficit Disorder with Hyperactivity/*diagnosis; Child; Humans; Male; *Practice (Psychology); *Statistics |
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ISSN |
0146-8693 |
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PMID:3772683 |
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no |
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refbase @ user @ |
Serial |
261 |
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Author |
Nallan, G.B.; Pace, G.M.; McCoy, D.F.; Zentall, T.R. |
Title |
The role of elicited responding in the feature-positive effect |
Type |
Journal Article |
Year |
1983 |
Publication |
The American journal of psychology |
Abbreviated Journal |
Am J Psychol |
Volume |
96 |
Issue |
3 |
Pages |
377-390 |
Keywords |
Animals; Color Perception; Columbidae; *Discrimination (Psychology); Male; Practice (Psychology); Reinforcement (Psychology); Time Factors |
Abstract |
Hearst and Jenkins proposed in 1974 that elicited responding accounts for the feature-positive effect. To test this position, pigeons were exposed to a feature-positive or feature-negative discrimination between successively presented displays--one consisted of a red and a green response key and the other consisted of two green response keys. There were four main conditions: 5-5 (5-sec trials, 5-sec intertrial intervals), 5-30, 30-30, and 30-180. Conditions 5-30 and 30-180 should produce the largest amount of elicited responding, and therefore the largest feature-positive effects. A response-independent bird was yoked to each response-dependent bird to allow direct assessment of the amount of elicited responding generated by each condition. Contrary to the predictions by Hearst and Jenkins's theory, response-dependent birds showed large feature-positive effects in each condition. The largest feature-positive effect was obtained in condition 5-5. Response-independent birds produced similar results, but manifested low response rates. |
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ISSN |
0002-9556 |
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Notes |
PMID:6650707 |
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no |
Call Number |
refbase @ user @ |
Serial |
266 |
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Author |
Henning, J.M.; Zentall, T.R. |
Title |
Imitation, social facilitation, and the effects of ACTH 4-10 on rats' bar-pressing behavior |
Type |
Journal Article |
Year |
1981 |
Publication |
The American journal of psychology |
Abbreviated Journal |
Am J Psychol |
Volume |
94 |
Issue |
1 |
Pages |
125-134 |
Keywords |
Adrenocorticotropic Hormone/*pharmacology; Animals; Conditioning, Operant/*drug effects; Dose-Response Relationship, Drug; Extinction, Psychological/drug effects; Imitative Behavior/*drug effects; Male; Peptide Fragments/*pharmacology; Rats; *Social Facilitation |
Abstract |
The effects of ACTH 4-10 on rats' imitation learning was examined during the acquisition and extinction of a bar-press response for water reinforcement. Rats were exposed to either a bar-pressing conspecific (OB), an experimentally naive conspecific (ON), or an empty box (OE) during bar-press acquisition. In a factorial design, each rat was then exposed to one of the same three conditions during extinction. An 80 mcg dose of ACTH 4-10 was administered to half of the rats in each group prior to observation. Performance differences during acquisition were generally small, but significant performance differences during extinction were found. Social facilitation was indicated by the finding that rats extinguished in the presence of a conspecific exhibited significantly greater resistance to extinction than rats extinguished in the presence of an empty box. An imitation effect was also found. Rats that observed a bar-pressing conspecific during both acquisition and extinction (group OB-OB) showed significantly greater resistance top extinction than did groups OB-ON, CB-OE, or OE-OE. There were no significant effects of the hormone, however, relative to saline controls. |
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0002-9556 |
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Notes |
PMID:6263117 |
Approved |
no |
Call Number |
refbase @ user @ |
Serial |
267 |
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Author |
Nallan, G.B.; Pace, G.M.; McCoy, D.F.; Zentall, T.R. |
Title |
Temporal parameters of the feature positive effect |
Type |
Journal Article |
Year |
1979 |
Publication |
The American journal of psychology |
Abbreviated Journal |
Am J Psychol |
Volume |
92 |
Issue |
4 |
Pages |
703-710 |
Keywords |
Animals; Columbidae; Conditioning, Operant; *Discrimination Learning; Form Perception; Male; *Time Perception |
Abstract |
Trial duration and intertrial interval duration were parametrically varied between groups of pigeons exposed to a discrimination involving the presence vs. the absence of a dot. Half the groups received the dot as the positive stimulus (feature positive groups) and half the groups received the dot as the negative stimulus (feature negative groups). Faster learning by the feature positive birds (feature positive effect) was found when the trial duration was short (5 sec) regardless of whether the intertrial interval was short (5 sec) or long (30 sec). No evidence for a feature positive effect was found when the trial duration was long (30 sec) regardless of the length of the intertrial interval (30 sec or 180 sec). The results suggest that short trial duration is a necessary condition for the occurrence of the feature positive effect, and neither intertrial interval nor trial duration/intertrial interval ratio are important for its occurrence. The suggestion that mechanisms underlying the feature positive effect and autoshaping might be similar was not supported by the present experiment since the trial duration/intertrial interval ration parameter appears to play an important role in autoshaping but not the feature positive effect. |
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0002-9556 |
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Notes |
PMID:532834 |
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no |
Call Number |
refbase @ user @ |
Serial |
269 |
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Author |
Zentall, S.S.; Zentall, T.R.; Barack, R.C. |
Title |
Distraction as a function of within-task stimulation for hyperactive and normal children |
Type |
Journal Article |
Year |
1978 |
Publication |
Journal of learning disabilities |
Abbreviated Journal |
J Learn Disabil |
Volume |
11 |
Issue |
9 |
Pages |
540-548 |
Keywords |
*Attention; Child; Child, Preschool; Color Perception; Female; Humans; Hyperkinesis/*psychology; Male; Motor Skills; *Task Performance and Analysis; Visual Perception |
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0022-2194 |
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PMID:731119 |
Approved |
no |
Call Number |
refbase @ user @ |
Serial |
270 |
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Author |
Heitor, F.; do Mar Oom, M.; Vicente, L. |
Title |
Social relationships in a herd of Sorraia horses Part I. Correlates of social dominance and contexts of aggression |
Type |
Journal Article |
Year |
2006 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
Volume |
73 |
Issue |
2 |
Pages |
170-177 |
Keywords |
Age Factors; *Aggression; Animals; Female; *Hierarchy, Social; Horses/*psychology; Male; Sex Factors; *Social Dominance; *Social Environment; Statistics, Nonparametric |
Abstract |
Factors related to dominance rank and the functions of aggression were studied in a herd of Sorraia horses, Equus caballus, under extensive management. Subjects were 10 adult mares 5-18 years old and a stallion introduced into the group for breeding. Dominance relationships among mares were clear, irrespective of rank difference, and remained stable after introduction of the stallion. The dominance hierarchy was significantly linear and rank was positively correlated with age and total aggressiveness. Higher-ranking mares received lower frequency and intensity of agonistic interactions. Nevertheless, higher-ranking dominants were not more likely to elicit submission from their subordinates than lower-ranking dominants. Neither close-ranking mares nor mares with less clear dominance relationships were more aggressive towards each other. Agonistic interactions seemed to be used more importantly in regulation of space than to obtain access to food or to reassert dominance relationships. Contexts of aggression were related to mare rank. The results suggest that dominance relationships based on age as a conventional criterion were established to reduce aggressiveness in a herd where the costs of aggression are likely to outweigh the benefits. |
Address |
Centro de Biologia Ambiental, Faculdade de Ciencias da Universidade de Lisboa, Campo Grande, Edificio C2, 1749-016 Lisboa, Portugal |
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0376-6357 |
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PMID:16815645 |
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no |
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refbase @ user @ |
Serial |
292 |
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Author |
Flack, J.C.; Girvan, M.; de Waal, F.B.M.; Krakauer, D.C. |
Title |
Policing stabilizes construction of social niches in primates |
Type |
Journal Article |
Year |
2006 |
Publication |
Nature |
Abbreviated Journal |
Nature |
Volume |
439 |
Issue |
7075 |
Pages |
426-429 |
Keywords |
Animals; Conflict (Psychology); Female; Macaca nemestrina/*physiology/*psychology; Male; Models, Biological; *Social Behavior |
Abstract |
All organisms interact with their environment, and in doing so shape it, modifying resource availability. Termed niche construction, this process has been studied primarily at the ecological level with an emphasis on the consequences of construction across generations. We focus on the behavioural process of construction within a single generation, identifying the role a robustness mechanism--conflict management--has in promoting interactions that build social resource networks or social niches. Using 'knockout' experiments on a large, captive group of pigtailed macaques (Macaca nemestrina), we show that a policing function, performed infrequently by a small subset of individuals, significantly contributes to maintaining stable resource networks in the face of chronic perturbations that arise through conflict. When policing is absent, social niches destabilize, with group members building smaller, less diverse, and less integrated grooming, play, proximity and contact-sitting networks. Instability is quantified in terms of reduced mean degree, increased clustering, reduced reach, and increased assortativity. Policing not only controls conflict, we find it significantly influences the structure of networks that constitute essential social resources in gregarious primate societies. The structure of such networks plays a critical role in infant survivorship, emergence and spread of cooperative behaviour, social learning and cultural traditions. |
Address |
Santa Fe Institute, Santa Fe, New Mexico 87501, USA. jflack@santafe.edu |
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1476-4687 |
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PMID:16437106 |
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no |
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refbase @ user @ |
Serial |
298 |
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Author |
Agrillo, C.; Dadda, M.; Bisazza, A. |
Title |
Quantity discrimination in female mosquitofish |
Type |
Journal Article |
Year |
2007 |
Publication |
Animal cognition |
Abbreviated Journal |
Anim. Cogn. |
Volume |
10 |
Issue |
1 |
Pages |
63-70 |
Keywords |
Animals; Cognition; *Cyprinodontiformes; *Discrimination Learning; Female; Male; Mathematics; *Pattern Recognition, Visual |
Abstract |
The ability in animals to count and represent different numbers of objects has received a great deal of attention in the past few decades. Cumulative evidence from comparative studies on number discriminations report obvious analogies among human babies, non-human primates and birds and are consistent with the hypothesis of two distinct and widespread mechanisms, one for counting small numbers (<4) precisely, and one for quantifying large numbers approximately. We investigated the ability to discriminate among different numerosities, in a distantly related species, the mosquitofish, by using the spontaneous choice of a gravid female to join large groups of females as protection from a sexually harassing male. In one experiment, we found that females were able to discriminate between two shoals with a 1:2 numerosity ratio (2 vs. 4, 4 vs. 8 and 8 vs. 16 fish) but failed to discriminate a 2:3 ratio (8 vs. 12 fish). In the second experiment, we studied the ability to discriminate between shoals that differed by one element; females were able to select the larger shoal when the paired numbers were 2 vs. 3 or 3 vs. 4 but not 4 vs. 5 or 5 vs. 6. Our study indicates that numerical abilities in fish are comparable with those of other non-verbal creatures studied; results are in agreement with the hypothesis of the existence of two distinct systems for quantity discrimination in vertebrates. |
Address |
Department of General Psychology, University of Padova, via Venezia 8, 35131, Padova, Italy. christian.agrillo@unipd.it |
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1435-9448 |
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PMID:16868736 |
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no |
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refbase @ user @ |
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339 |
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