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Alexander, B.K.; Bowers, J.M. |
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Title |
Social organization of a troop of Japanese monkeys in a two-acre enclosure |
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Journal Article |
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Year |
1969 |
Publication |
Folia Primatologica; International Journal of Primatology |
Abbreviated Journal |
Folia Primatol (Basel) |
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Volume |
10 |
Issue |
3 |
Pages  |
230-242 |
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Animals; *Behavior, Animal; *Haplorhini; Leadership; *Social Behavior |
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0015-5713 |
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PMID:4976202 |
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2055 |
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Author |
Brennan, P.A. |
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Title |
The nose knows who's who: chemosensory individuality and mate recognition in mice |
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Journal Article |
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Year |
2004 |
Publication |
Hormones and Behavior |
Abbreviated Journal |
Horm Behav |
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Volume |
46 |
Issue |
3 |
Pages |
231-240 |
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Keywords |
Animals; Chemoreceptors/physiology; Discrimination Learning/*physiology; Embryo Implantation/physiology; Female; Individuality; Major Histocompatibility Complex/physiology; Male; Mice; Neurons, Afferent/physiology; Nose/cytology/physiology; Perception/physiology; Pregnancy; Pregnancy Maintenance/physiology; Pregnancy, Animal/*physiology; Receptors, Odorant/*physiology; Recognition (Psychology)/*physiology; Sexual Behavior, Animal/*physiology; Smell/*physiology; Urine/physiology; Vomeronasal Organ/cytology/physiology |
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Abstract |
Individual recognition is an important component of behaviors, such as mate choice and maternal bonding that are vital for reproductive success. This article highlights recent developments in our understanding of the chemosensory cues and the neural pathways involved in individuality discrimination in rodents. There appear to be several types of chemosensory signal of individuality that are influenced by the highly polymorphic families of major histocompatibility complex (MHC) proteins or major urinary proteins (MUPs). Both have the capability of binding small molecules and may influence the individual profile of these chemosignals in biological fluids such as urine, skin secretions, or saliva. Moreover, these proteins, or peptides associated with them, can be taken up into the vomeronasal organ (VNO) where they can potentially interact directly with the vomeronasal receptors. This is particularly interesting given the expression of major histocompatibility complex Ib proteins by the V2R class of vomeronasal receptor and the highly selective responses of accessory olfactory bulb (AOB) mitral cells to strain identity. These findings are consistent with the role of the vomeronasal system in mediating individual discrimination that allows mate recognition in the context of the pregnancy block effect. This is hypothesized to involve a selective increase in the inhibitory control of mitral cells in the accessory olfactory bulb at the first level of processing of the vomeronasal stimulus. |
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Sub-Department of Animal Behaviour, University of Cambridge, Madingley, Cambridge CB3 8AA, UK. pab23@cus.cam.ac.uk |
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0018-506X |
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PMID:15325224 |
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no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
4191 |
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Author |
Fremouw, T.; Herbranson, W.T.; Shimp, C.P. |
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Title |
Dynamic shifts of pigeon local/global attention |
Type |
Journal Article |
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Year |
2002 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
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Volume |
5 |
Issue |
4 |
Pages |
233-243 |
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Keywords |
Animals; Attention/*physiology; *Behavior, Animal; Columbidae/*physiology; Male; Reaction Time; Visual Perception/*physiology |
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Abstract |
It has previously been shown that pigeons can shift attention between parts and wholes of complex stimuli composed of larger, “global” characters constructed from smaller, “local” characters. The base-rate procedure used biased target level within any condition at either the local or global level; targets were more likely at one level than at the other. Biasing of target level in this manner demonstrated shifts of local/global attention over a time span consisting of several days with a fixed base rate. Experiment 1 examined the possibility that pigeons can shift attention between local and global levels of perceptual analysis in seconds rather than days. The experiment used priming cues the color of which predicted on a trial-by-trial basis targets at different perceptual levels. The results confirmed that pigeons, like humans, can display highly dynamic stimulus-driven shifts of local/global attention. Experiment 2 changed spatial relations between features of priming cues and features of targets within a task otherwise similar to that used in experiment 1. It was predicted that this change in cues might affect asymmetry but not the occurrence of a priming effect. A priming effect was again obtained, thereby providing generality to the claim that pigeons can learn that trial-by-trial primes predict targets at different levels of perceptual analysis. Pigeons can display perceptual, stimulus-driven priming of a highly dynamic nature. |
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Department of Psychology, University of California-Berkeley, Berkeley, CA 94720-1650, USA |
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1435-9448 |
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PMID:12461601 |
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no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
2589 |
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Author |
Watanabe, S.; Huber, L. |
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Title |
Animal logics: decisions in the absence of human language |
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Journal Article |
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Year |
2006 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
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Volume |
9 |
Issue |
4 |
Pages |
235-245 |
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Keywords |
*Animal Communication; Animals; Behavior, Animal/*physiology; Brain/physiology; Cognition/*physiology; Decision Making/*physiology; Evolution; Humans; *Language; *Logic; Problem Solving/physiology |
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Without Abstract |
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Department of Psychology, Keio University, Mita 2-15-45, Minato-ku, Tokyo 108, Japan. swat@flet.keio.ac.jp |
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1435-9448 |
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Notes |
PMID:16909231 |
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no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
2453 |
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Author |
Santos, L.R.; Rosati, A.; Sproul, C.; Spaulding, B.; Hauser, M.D. |
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Title |
Means-means-end tool choice in cotton-top tamarins (Saguinus oedipus): finding the limits on primates' knowledge of tools |
Type |
Journal Article |
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Year |
2005 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
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Volume |
8 |
Issue |
4 |
Pages |
236-246 |
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Keywords |
Animals; *Behavior, Animal; *Choice Behavior; Female; Male; *Problem Solving; Saguinus/*psychology |
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Abstract |
Most studies of animal tool use require subjects to use one object to gain access to a food reward. In many real world situations, however, animals perform more than one action in sequence to achieve their goals. Of theoretical interest is whether animals have the cognitive capacity to recognize the relationship between consecutive action sequences in which there may be one overall goal and several subgoals. Here we ask if cotton-top tamarins, a species that in captivity uses tools to solve means-end problems, can go one step further and use a sequence of tools (means) to obtain food (end). We first trained subjects to use a pulling tool to obtain a food reward. After this initial training, subjects were presented with problems in which one tool had to be used in combination with a second in order to obtain food. Subjects showed great difficulty when two tools were required to obtain the food reward. Although subjects attended to the connection between the tool and food reward, they ignored the physical connection between the two tools. After training on a two-tool problem, we presented subjects with a series of transfer tests to explore if they would generalize to new types of connections between the tools. Subjects readily transferred to new connections. Our results therefore provide the first evidence to date that tamarins can learn to solve problems involving two tools, but that they do so only with sufficient training. |
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Department of Psychology, Yale University, New Haven, CT, USA. laurie.santos@yale.edu |
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1435-9448 |
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Notes |
PMID:15668762 |
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no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
2495 |
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Author |
Rogers, L.J. |
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Title |
Evolution of hemispheric specialization: advantages and disadvantages |
Type |
Journal Article |
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Year |
2000 |
Publication |
Brain and Language |
Abbreviated Journal |
Brain Lang |
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Volume |
73 |
Issue |
2 |
Pages |
236-253 |
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Keywords |
Aggression/psychology; Animals; Behavior, Animal/physiology; Brain/*physiology; Chickens/physiology; *Evolution; Feeding Behavior/physiology; Functional Laterality/*physiology; Visual Fields/physiology; Visual Perception/physiology |
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Abstract |
Lateralization of the brain appeared early in evolution and many of its features appear to have been retained, possibly even in humans. We now have a considerable amount of information on the different forms of lateralization in a number of species, and the commonalities of these are discussed, but there has been relatively little investigation of the advantages of being lateralized. This article reports new findings on the differences between lateralized and nonlateralized chicks. The lateralized chicks were exposed to light for 24 h on day 19 of incubation, a treatment known to lead to lateralization of a number of visually guided responses, and the nonlateralized chicks were incubated in the dark. When they were feeding, the lateralized chicks were found to detect a stimulus resembling a raptor with shorter latency than nonlateralized chicks. This difference was not a nonspecific effect caused by the light-exposed chicks being more distressed by the stimulus. Instead, it appears to be a genuine advantage conferred by having a lateralized brain. It is suggested that having a lateralized brain allows dual attention to the tasks of feeding (right eye and left hemisphere) and vigilance for predators (left eye and right hemisphere). Nonlateralized chicks appear to perform these dual tasks less efficiently than lateralized ones. Reference is made to other species in discussing these results. |
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Division of Zoology, University of New England, Armidale, New South Wales, Australia. lrogers@metz.une.edu.au |
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0093-934X |
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Notes |
PMID:10856176 |
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no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
4621 |
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Author |
van Niekerk, H.P. |
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Title |
Ethological studies within the man-horse relationship |
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Journal Article |
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Year |
1980 |
Publication |
Journal of the South African Veterinary Association |
Abbreviated Journal |
J S Afr Vet Assoc |
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Volume |
51 |
Issue |
4 |
Pages |
237-238 |
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Keywords |
Animals; Behavior, Animal; Hearing; Horses/*physiology; Humans; Smell; Taste; Touch; Vision |
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Certain aspects of ethology and the horse's senses are discussed to bring about a better understanding between man and horse. Furthermore the behaviour of horses with respect to housing, feeding, breeding, veterinary treatment and work are considered. |
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1019-9128 |
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PMID:7241494 |
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no |
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refbase @ user @ |
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1960 |
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Author |
Hubbell, J.A.E.; Muir, W.W. |
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Title |
Antagonism of detomidine sedation in the horse using intravenous tolazoline or atipamezole |
Type |
Journal Article |
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Year |
2006 |
Publication |
Equine Veterinary Journal |
Abbreviated Journal |
Equine Vet J |
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Volume |
38 |
Issue |
3 |
Pages |
238-241 |
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Keywords |
Animals; Behavior, Animal/drug effects/physiology; Dose-Response Relationship, Drug; Double-Blind Method; Horses/*physiology; Hypnotics and Sedatives/*antagonists & inhibitors; Imidazoles/*antagonists & inhibitors/*pharmacology; Infusions, Intravenous/veterinary; Kinetics; Safety; Tolazoline/*pharmacology; Videotape Recording |
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Abstract |
REASONS FOR PERFORMING STUDY: The ability to shorten the duration of sedation would potentially improve safety and utility of detomidine. OBJECTIVES: To determine the effects of tolazoline and atipamezole after detomidine sedation. HYPOTHESIS: Administration of tolazoline or atipamezole would not affect detomidine sedation. METHODS: In a randomised, placebo-controlled, double-blind, descriptive study, detomidine (0.02 mg/kg bwt i.v.) was administered to 6 mature horses on 4 separate occasions. Twenty-five mins later, each horse received one of 4 treatments: Group 1 saline (0.9% i.v.) as a placebo control; Group 2 atipamezole (0.05 mg/kg bwt i.v.); Group 3 atipamezole (0.1 mg/kg bwt i.v.); and Group 4 tolazoline (4.0 mg/kg bwt i.v.). Sedation, muscle relaxation and ataxia were scored by 3 independent observers at 9 time points. Horses were led through an obstacle course at 7 time points. Course completion time was recorded and the ability of the horse to traverse the course was scored by 3 independent observers. Horses were videotaped before, during and after each trip through the obstacle course. RESULTS: Atipamezole and tolazoline administration incompletely antagonised the effects of detomidine, but the time course to recovery was shortened. CONCLUSIONS AND POTENTIAL RELEVANCE: Single bolus administration of atipamezole or tolazoline produced partial reversal of detomidine sedation and may be useful for minimising detomidine sedation. |
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Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Ohio State University, 601 Tharp Street, Columbus, Ohio 43210, USA |
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0425-1644 |
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PMID:16706278 |
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no |
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Call Number |
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Serial |
1869 |
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Author |
Kralj-Fiser, S.; Scheiber, I.B.R.; Blejec, A.; Moestl, E.; Kotrschal, K. |
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Title |
Individualities in a flock of free-roaming greylag geese: behavioral and physiological consistency over time and across situations |
Type |
Journal Article |
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Year |
2007 |
Publication |
Hormones and Behavior |
Abbreviated Journal |
Horm Behav |
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Volume |
51 |
Issue |
2 |
Pages |
239-248 |
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Keywords |
Animals; Behavior, Animal/*physiology; Corticosterone/metabolism; Feces; Female; Geese/*physiology; Individuality; Male; Personality/*physiology; Population Density; Reproducibility of Results; Seasons; *Social Behavior; Social Environment; Testosterone/*metabolism |
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The concept of personality implies individual differences in behavior and physiology that show some degree of repeatability/consistency over time and across contexts. Most studies of animal personality, particularly studies of individuals' variation in physiological mechanisms, have been conducted on selected individuals in controlled conditions. We attempted to detect consistent behaviors as well as physiological patterns in greylag ganders (Anser anser) from a free-roaming flock living in semi-natural conditions. We tested 10 individuals repeatedly, in a handling trial, resembling tests for characterization of “temperaments” in captive animals. We recorded the behavior of the same 10 individuals during four situations in the socially intact flock: (1) a “low density feeding condition”, (2) a “high density feeding condition”, (3) a “low density post-feeding situation” and (4) while the geese rested. We collected fecal samples for determination of excreted immuno-reactive corticosterone (BM) and testosterone metabolites (TM) after handling trials, as well as the “low density feeding” and the “high density feeding” conditions. BM levels were very highly consistent over the repeats of handling trials, and the “low density feeding condition” and tended to be consistent over the first two repeats of the “high density feeding condition”. Also, BM responses tended to be consistent across contexts. Despite seasonal variation, there tended to be inter-test consistency of TM, which pointed to some individual differences in TM as well. Aggressiveness turned out to be a highly repeatable trait, which was consistent across social situations, and tended to correlate with an individual's resistance during handling trials. Also, “proximity to the female partner” and “sociability” – the average number of neighboring geese in a close distance while resting – were consistent. We conclude that aggressiveness, “affiliative tendencies” and levels of excreted corticosterone and testosterone metabolites may be crucial factors of personality in geese. |
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University of Ljubljana, Biotechnical faculty, Slovenia. simona.kralj@guest.arnes.si |
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0018-506X |
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Notes |
PMID:17196200 |
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no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
4189 |
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Author |
Zucca, P.; Milos, N.; Vallortigara, G. |
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Title |
Piagetian object permanence and its development in Eurasian jays (Garrulus glandarius) |
Type |
Journal Article |
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Year |
2007 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
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Volume |
10 |
Issue |
2 |
Pages |
243-258 |
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Keywords |
Animals; *Behavior, Animal; Birds/*physiology; *Cognition; *Cues |
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Abstract |
Object permanence in Eurasian jays (Garrulus glandarius) was investigated using a complete version of the Uzgiris and Hunt scale 1. Nine hand-raised jays were studied, divided into two groups according to their different developmental stages (experiment 1, older jays: 2-3 months old, n = 4; experiment 2, younger jays: 15 days old, n = 5). In the first experiment, we investigated whether older jays could achieve piagetian stage 6 of object permanence. Tasks were administered in a fixed sequence (1-15) according to the protocols used in other avian species. The aim of the second experiment was to check whether testing very young jays before their development of “neophobia” could influence the achievement times of piagetian stages. Furthermore, in this experiment tasks were administered randomly to investigate whether the jays' achievement of stage 6 follows a fixed sequence related to the development of specific cognitive abilities. All jays tested in experiments 1 and 2 fully achieved piagetian stage 6 and no “A not B” errors were observed. Performance on visible displacement tasks was better than performance on invisible ones. The results of experiment 2 show that “neophobia” affected the response of jays in terms of achievement times; the older jays in experiment 1 took longer to pass all the tasks when compared with the younger, less neophobic, jays in experiment 2. With regard to the achieving order, jays followed a fixed sequence of acquisition in experiment 2, even if tasks were administered randomly, with the exception of one subject. The results of these experiments support the idea that piagetian stages of cognitive development exist in avian species and that they progress through relatively fixed sequences. |
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Department of Psychology, Laboratory of Animal Cognition and Comparative Neuroscience, Via S. Anastasio 12, 34100, Trieste, Italy. zucca@units.it |
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1435-9448 |
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PMID:17242935 |
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Call Number |
Equine Behaviour @ team @ |
Serial |
2423 |
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