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Author |
Gomez, J.-C. |
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Title |
Species comparative studies and cognitive development |
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Journal Article |
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Year  |
2005 |
Publication |
Trends in Cognitive Sciences |
Abbreviated Journal |
Trends. Cognit. Sci. |
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Volume |
9 |
Issue |
3 |
Pages |
118-125 |
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Keywords |
Animals; Attention/physiology; Brain/*growth & development; Child, Preschool; Cognition/*physiology; Concept Formation/physiology; Dogs; Evolution; Fixation, Ocular; Gorilla gorilla; Humans; Infant; Learning/*physiology; Macaca mulatta; Mental Recall/physiology; Personal Construct Theory; Psychomotor Performance/physiology; Species Specificity |
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Abstract |
The comparative study of infant development and animal cognition brings to cognitive science the promise of insights into the nature and origins of cognitive skills. In this article, I review a recent wave of comparative studies conducted with similar methodologies and similar theoretical frameworks on how two core components of human cognition--object permanence and gaze following--develop in different species. These comparative findings call for an integration of current competing accounts of developmental change. They further suggest that evolution has produced developmental devices capable at the same time of preserving core adaptive components, and opening themselves up to further adaptive change, not only in interaction with the external environment, but also in interaction with other co-developing cognitive systems. |
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Scottish Primate Research Group, School of Psychology, University of St Andrews, St Andrews, Fife KY15 9JU, UK |
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1364-6613 |
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PMID:15737820 |
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Equine Behaviour @ team @ |
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2851 |
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Author |
Capitanio, J.P.; Widaman, K.F. |
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Title |
Confirmatory factor analysis of personality structure in adult male rhesus monkeys (Macaca mulatta) |
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Journal Article |
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Year |
2005 |
Publication |
American journal of primatology |
Abbreviated Journal |
Am. J. Primatol. |
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Volume |
65 |
Issue |
3 |
Pages |
289-294 |
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Keywords |
Animals; *Behavior, Animal; Macaca mulatta/*psychology; Male; *Personality; Psychometrics; Social Behavior |
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Abstract |
Reports from different laboratories have suggested that nonhuman primates have somewhat similar dimensions of personality. To date, however, no attempts have been made to statistically replicate a specific factor structure. In the present report, two independent observers recorded the behavior of 58 adult male rhesus monkeys, and then rated the animals with the use of a 50-item personality instrument. A confirmatory factor analysis (CFA) of the ratings resulted in the replication of a previously described four-factor personality structure [Maninger et al., American Journal of Primatology 61:73-83, 2003]. The first two dimensions-Sociability and Confidence-showed strong loadings and are similar to Affiliation and Agency dimensions in humans. The remaining dimensions-Equability and Irritability-were less clear, and it is possible that additional traits will have to be identified before a more robust structure can be established for these dimensions. |
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Department of Psychology, University of California-Davis, Davis, California 95616, USA. jpcapitanio@ucdavis.edu |
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0275-2565 |
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PMID:15772988 |
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Equine Behaviour @ team @ |
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4111 |
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Coleman, K.; Tully, L.A.; McMillan, J.L. |
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Title |
Temperament correlates with training success in adult rhesus macaques |
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Journal Article |
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Year |
2005 |
Publication |
American journal of primatology |
Abbreviated Journal |
Am. J. Primatol. |
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Volume |
65 |
Issue |
1 |
Pages |
63-71 |
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Keywords |
Animals; Female; *Inhibition (Psychology); *Learning; Macaca mulatta/*psychology; *Reinforcement (Psychology); *Temperament |
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Abstract |
In recent years there has been a marked increase in awareness of issues involving the psychological well-being of nonhuman primates (NHPs) used in biomedical research. As a result, many facilities are starting to train primates to voluntarily cooperate with veterinary, husbandry, and research procedures, such as remaining still for blood draws or injections. Such training generally reduces the stress associated with these procedures, resulting in calmer animals and, ultimately, better research models. However, such training requires great investments in time, and there can be vast individual differences in training success. Some animals learn tasks quickly, while others make slower progress in training. In this study, we examined whether temperament, as measured by response to a novel food object, correlated with the amount of time it took to train 20 adult female rhesus macaques to perform a simple task. The monkeys were categorized as “exploratory” (i.e., inspected a novel object placed in the home cage within 10 sec), “moderate” (i.e., inspected the object within 10-180 sec), or “inhibited” (i.e., did not inspect the object within 3 min). We utilized positive reinforcement techniques to train the monkeys to touch a target (PVC pipe shaped like an elbow) hung on their cage. Temperament correlated with training success in this study (Pearson chi2=7.22, df=2, P=0.03). We easily trained over 75% of the animals that inspected the novel food (i.e., exploratory or moderate individuals) to touch the target. However, only 22% of the inhibited monkeys performed the task. By knowing which animals may not respond to conventional training methods, we may be able to develop alternate training techniques to address their specific needs. In addition, these results will allow us to screen monkeys to be assigned to research projects in which they will be trained, with the goal of obtaining the best candidates for those studies. |
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Oregon National Primate Research Center, Beaverton, Oregon 97006, USA. colemank@ohsu.edu |
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0275-2565 |
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PMID:15645460 |
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no |
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Equine Behaviour @ team @ |
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4112 |
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Author |
Hampton, R.R.; Zivin, A.; Murray, E.A. |
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Title |
Rhesus monkeys (Macaca mulatta) discriminate between knowing and not knowing and collect information as needed before acting |
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Journal Article |
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Year |
2004 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
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Volume |
7 |
Issue |
4 |
Pages |
239-246 |
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Keywords |
Animals; Association Learning; *Awareness; Choice Behavior; *Concept Formation; *Discrimination Learning; Female; Macaca mulatta/*psychology; Male; *Memory, Short-Term; Observation |
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Abstract |
Humans use memory awareness to determine whether relevant knowledge is available before acting, as when we determine whether we know a phone number before dialing. Such metacognition, or thinking about thinking, can improve selection of appropriate behavior. We investigated whether rhesus monkeys ( Macaca mulatta) are capable of a simple form of metacognitive access to the contents of short-term memory. Monkeys chose among four opaque tubes, one of which concealed food. The tube containing the reward varied randomly from trial to trial. On half the trials the monkeys observed the experimenter baiting the tube, whereas on the remaining trials their view of the baiting was blocked. On each trial, monkeys were allowed a single chance to select the tube containing the reward. During the choice period the monkeys had the opportunity to look down the length of each tube, to determine if it contained food. When they knew the location of the reward, most monkeys chose without looking. In contrast, when ignorant, monkeys often made the effort required to look, thereby learning the location of the reward before choosing. Looking improved accuracy on trials on which monkeys had not observed the baiting. The difference in looking behavior between trials on which the monkeys knew, and trials on which they were ignorant, suggests that rhesus monkeys discriminate between knowing and not knowing. This result extends similar observations made of children and apes to a species of Old World monkey, suggesting that the underlying cognitive capacities may be widely distributed among primates. |
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Section on the Neurobiology of Learning and Memory, Laboratory of Neuropsychology, National Institute of Mental Health, NIH, Bethesda, MD 20892-4415, USA. robert@ln.nimh.nih.gov |
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1435-9448 |
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PMID:15105996 |
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no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
2525 |
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Author |
Fortes, A.F.; Merchant, H.; Georgopoulos, A.P. |
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Title |
Comparative and categorical spatial judgments in the monkey: “high” and “low” |
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Journal Article |
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Year |
2004 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
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7 |
Issue |
2 |
Pages |
101-108 |
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Keywords |
Animals; *Classification; Cognition; *Discrimination Learning; Form Perception; Macaca mulatta/*parasitology; Male; *Pattern Recognition, Visual; Semantics; *Space Perception |
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Abstract |
Adult human subjects can classify the height of an object as belonging to either of the “high” or “low” categories by utilizing an abstract concept of midline that divides the vertical dimension into two halves. Children lack this abstract concept of midline, do not have a sense that these categories are directional opposites, and their categorical and comparative usages of high(er) or low(er) are restricted to the corresponding poles. We investigated the abilities of a rhesus monkey to perform categorical judgments in space. We were also interested in the presence of the congruity effect (a decrease in response time when the objects compared are closer to the category pole) in the monkey. The presence of this phenomenon in the monkey would allow us to relate the behavior of the animal to the two major competing hypotheses that have been suggested to explain the congruity effect in humans: the analog and semantic models. The monkey was trained in delayed match-to-sample tasks in which it had to categorize objects as belonging to either a high or low category. The monkey was able to generate an abstract notion of midline in a fashion similar to that of adult human subjects. The congruity effect was also present in the monkey. These findings, taken together with the notion that monkeys are not considered to think in propositional terms, may favor an analog comparison model in the monkey. |
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Brain Sciences Center, Veterans Affairs Medical Center, One Veterans Drive, Minneapolis, MN 55417, USA |
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1435-9448 |
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PMID:15069609 |
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no |
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Equine Behaviour @ team @ |
Serial |
2531 |
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Author |
Gothard, K.M.; Erickson, C.A.; Amaral, D.G. |
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Title |
How do rhesus monkeys ( Macaca mulatta) scan faces in a visual paired comparison task? |
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Journal Article |
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Year |
2004 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
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Volume |
7 |
Issue |
1 |
Pages |
25-36 |
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Keywords |
Animals; Eye Movements/*physiology; *Facial Expression; Macaca mulatta/*physiology; Male; Pattern Recognition, Visual/*physiology; *Task Performance and Analysis |
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Abstract |
When novel and familiar faces are viewed simultaneously, humans and monkeys show a preference for looking at the novel face. The facial features attended to in familiar and novel faces, were determined by analyzing the visual exploration patterns, or scanpaths, of four monkeys performing a visual paired comparison task. In this task, the viewer was first familiarized with an image and then it was presented simultaneously with a novel and the familiar image. A looking preference for the novel image indicated that the viewer recognized the familiar image and hence differentiates between the familiar and the novel images. Scanpaths and relative looking preference were compared for four types of images: (1) familiar and novel objects, (2) familiar and novel monkey faces with neutral expressions, (3) familiar and novel inverted monkey faces, and (4) faces from the same monkey with different facial expressions. Looking time was significantly longer for the novel face, whether it was neutral, expressing an emotion, or inverted. Monkeys did not show a preference, or an aversion, for looking at aggressive or affiliative facial expressions. The analysis of scanpaths indicated that the eyes were the most explored facial feature in all faces. When faces expressed emotions such as a fear grimace, then monkeys scanned features of the face, which contributed to the uniqueness of the expression. Inverted facial images were scanned similarly to upright images. Precise measurement of eye movements during the visual paired comparison task, allowed a novel and more quantitative assessment of the perceptual processes involved the spontaneous visual exploration of faces and facial expressions. These studies indicate that non-human primates carry out the visual analysis of complex images such as faces in a characteristic and quantifiable manner. |
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Department of Psychiatry, University of California Davis, 2230 Stokton Blvd., Sacramento, CA 95817, USA. kgothard@email.arizona.edu |
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1435-9448 |
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PMID:14745584 |
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Equine Behaviour @ team @ |
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2545 |
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Author |
Merchant, H.; Fortes, A.F.; Georgopoulos, A.P. |
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Title |
Short-term memory effects on the representation of two-dimensional space in the rhesus monkey |
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Journal Article |
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2004 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
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Volume |
7 |
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3 |
Pages |
133-143 |
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Analysis of Variance; Animals; Discrimination Learning/*physiology; Macaca mulatta; Male; Memory, Short-Term/*physiology; Mental Processes/*physiology; Pattern Recognition, Visual/*physiology; Space Perception/*physiology |
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Abstract |
Human subjects represent the location of a point in 2D space using two independent dimensions (x-y in Euclidean or radius-angle in polar space), and encode location in memory along these dimensions using two levels of representation: a fine-grain value and a category. Here we determined whether monkeys possessed the ability to represent location with these two levels of coding. A rhesus monkey was trained to reproduce the location of a dot in a circle by pointing, after a delay period, on the location where a dot was presented. Five different delay periods (0.5-5 s) were used. The results showed that the monkey used a polar coordinate system to represent the fine-grain spatial coding, where the radius and angle of the dots were encoded independently. The variability of the spatial response and reaction time increased with longer delays. Furthermore, the animal was able to form a categorical representation of space that was delay-dependent. The responses avoided the circumference and the center of the circle, defining a categorical radial prototype around one third of the total radial length. This radial category was observed only at delay durations of 3-5 s. Finally, the monkey also formed angular categories with prototypes at the obliques of the quadrants of the circle, avoiding the horizontal and vertical axes. However, these prototypes were only observed at the 5-s delay and on dots lying on the circumference. These results indicate that monkeys may possess spatial cognitive abilities similar to humans. |
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Brain Sciences Center (11B), Veterans Affairs Medical Center, One Veterans Drive, MN 55417, Minneapolis, USA |
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1435-9448 |
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PMID:14669074 |
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Equine Behaviour @ team @ |
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2548 |
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Author |
Beran, M.J.; Pate, J.L.; Washburn, D.A.; Rumbaugh, D.M. |
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Sequential responding and planning in chimpanzees (Pan troglodytes) and rhesus macaques (Macaca mulatta) |
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Journal Article |
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Year |
2004 |
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Journal of Experimental Psychology. Animal Behavior Processes |
Abbreviated Journal |
J Exp Psychol Anim Behav Process |
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30 |
Issue |
3 |
Pages |
203-212 |
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Animals; *Cognition; Female; Goals; Learning; Macaca mulatta/*psychology; Male; *Mathematics; Pan troglodytes/*psychology; Task Performance and Analysis |
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Chimpanzees (Pan troglodytes) and rhesus macaques (Macaca mulatta) selected either Arabic numerals or colored squares on a computer monitor in a learned sequence. On shift trials, the locations of 2 stimuli were interchanged at some point. More errors were made when this interchange occurred for the next 2 stimuli to be selected than when the interchange was for stimuli later in the sequence. On mask trials, all remaining stimuli were occluded after the 1st selection. Performance exceeded chance levels for only 1 selection after these masks were applied. There was no difference in performance for either stimulus type (numerals or colors). The data indicated that the animals planned only the next selection during these computerized tasks as opposed to planning the entire response sequence. |
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Language Research Center, Georgia State University, Atlanta 30303, USA. mjberan@yahoo.com |
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0097-7403 |
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PMID:15279511 |
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Equine Behaviour @ team @ |
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2767 |
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Author |
Corr, J.A. |
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Nuns and monkeys: investigating the behavior of our oldest old |
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Journal Article |
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2004 |
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Science of Aging Knowledge Environment : SAGE KE |
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Sci Aging Knowledge Environ |
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2004 |
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41 |
Pages |
pe38 |
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Aged; Aged, 80 and over/*physiology; Aging/*physiology; Animals; Behavior/*physiology; Humans; Macaca mulatta |
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The use of nonhuman primates, particularly rhesus macaques (Macaca mulatta), as the best model for human physiological and cognitive aging is broadly accepted. Studies employing nonhuman primates to investigate behavioral changes that may occur with increasing age, however, are not common mostly because of the unavailability of appropriate subjects. Recent longitudinal human studies suggest that individual personality might play a large role in aging “successfully” and in the retention of high levels of cognition into old age. As a result of the demographic trend of increasing numbers of aged monkeys and apes in captivity, an opportunity exists to further investigate behavioral aging using the monkey model. |
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Department of Anthropology, Grand Valley State University, Allendale, MI 49401, USA. corrj@gvsu.edu |
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1539-6150 |
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PMID:15483334 |
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Equine Behaviour @ team @ |
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2828 |
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Author |
Subiaul, F.; Cantlon, J.F.; Holloway, R.L.; Terrace, H.S. |
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Title |
Cognitive imitation in rhesus macaques |
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Journal Article |
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Year |
2004 |
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Science (New York, N.Y.) |
Abbreviated Journal |
Science |
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305 |
Issue |
5682 |
Pages |
407-410 |
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Animals; *Cognition; *Imitative Behavior; *Learning; Macaca mulatta/*physiology/psychology; Male |
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Experiments on imitation typically evaluate a student's ability to copy some feature of an expert's motor behavior. Here, we describe a type of observational learning in which a student copies a cognitive rule rather than a specific motor action. Two rhesus macaques were trained to respond, in a prescribed order, to different sets of photographs that were displayed on a touch-sensitive monitor. Because the position of the photographs varied randomly from trial to trial, sequences could not be learned by motor imitation. Both monkeys learned new sequences more rapidly after observing an expert execute those sequences than when they had to learn new sequences entirely by trial and error. |
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Department of Anthropology, Columbia University, New York, NY 10027, USA. subiaul@aol.com |
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1095-9203 |
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PMID:15256673 |
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Equine Behaviour @ team @ |
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2839 |
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