| Records |
Author  |
Stoet, G.; Snyder, L.H. |
| Title |
Task preparation in macaque monkeys ( Macaca mulatta) |
Type |
Journal Article |
| Year |
2003 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
| Volume |
6 |
Issue |
2 |
Pages |
121-130 |
| Keywords |
Animals; *Cognition; Conditioning, Classical; Macaca mulatta/*psychology; Male; Reaction Time; Task Performance and Analysis; Visual Perception |
| Abstract |
We investigated whether macaque monkeys possess the ability to prepare abstract tasks in advance. We trained two monkeys to use different stimulus-response (S-R) mappings. On each trial, monkeys were first informed with a visual cue which of two S-R mapping to use. Following a delay, a visual target was presented to which they would respond with a left or right button-press. We manipulated delay time between cue and target and found that performance was faster and more accurate with longer delays, suggesting that monkeys used the delay time to prepare each task in advance. |
| Address |
Department of Anatomy and Neurobiology, Washington University School of Medicine, 660 S Euclid Ave., Box 8108, St. Louis, MO 63110, USA. stoet@pcg.wustl.edu |
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English |
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1435-9448 |
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| Notes |
PMID:12721788 |
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no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
2572 |
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| Author |
Subiaul, F.; Cantlon, J.F.; Holloway, R.L.; Terrace, H.S. |
| Title |
Cognitive imitation in rhesus macaques |
Type |
Journal Article |
| Year |
2004 |
Publication |
Science (New York, N.Y.) |
Abbreviated Journal |
Science |
| Volume |
305 |
Issue |
5682 |
Pages |
407-410 |
| Keywords |
Animals; *Cognition; *Imitative Behavior; *Learning; Macaca mulatta/*physiology/psychology; Male |
| Abstract |
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. |
| Address |
Department of Anthropology, Columbia University, New York, NY 10027, USA. subiaul@aol.com |
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1095-9203 |
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| Notes |
PMID:15256673 |
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no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
2839 |
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| Author |
Sueur, C.; Petit, O. |
| Title |
Organization of Group Members at Departure Is Driven by Social Structure in Macaca |
Type |
Journal Article |
| Year |
2008 |
Publication |
International Journal of Primatology |
Abbreviated Journal |
Int. J. Primatol. |
| Volume |
29 |
Issue |
4 |
Pages |
1085-1098 |
| Keywords |
dominance – kinship – Macaca tonkeana – M. mulatta – network metrics – order – movement |
| Abstract |
Abstract Researchers have often explained order of progression of group members during joint movement in terms of the influence of ecological pressures but rarely that of social constraints. We studied the order of joining by group members to a movement in semifree-ranging macaques with contrasting social systems: 1 group of Tonkean macaques (Macaca tonkeana) and 1 group of rhesus macaques (M. mulatta). We used network metrics to understand roles and associations among individuals. The way the macaques joined a movement reflected the social differences between the species in terms of dominance and kinship. Old and dominant male rhesus macaques were more often at the front of the movement, contrary to the Tonkean macaques, which exhibited no specific order. Moreover, rhesus macaques preferred to join high-ranking or related individuals, whereas Tonkean macaques based associations during joining mostly on sexual relationships with a subgroup of peripheral males. |
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Equine Behaviour @ team @ |
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5125 |
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| Author |
Treichler, F.R. |
| Title |
Successive reversal of concurrent discriminations by macaques (Macaca mulatta): proactive interference effects |
Type |
Journal Article |
| Year |
2005 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
| Volume |
8 |
Issue |
2 |
Pages |
75-83 |
| Keywords |
Animals; Choice Behavior; *Discrimination Learning; Female; Macaca mulatta/*psychology; *Memory; *Proactive Inhibition; Random Allocation; *Reversal Learning |
| Abstract |
Rhesus monkeys received concurrent within-session training on eight, two-choice object pairs and then underwent successive reversals of these problems. Initially, reversals required about six times more training than acquisition with no improvement over seven successive reversals. Surprisingly, performance on these eight problems was unimpaired if they were embedded in different eight-problem tasks, thereby indicating a release from proactive interference. When the original eight problems again underwent successive reversal, no improvement was seen over seven reversals, although there was significantly less error-per-reversal than in the initial test. Subsequently, monkeys appeared to be developing a learning set for successive reversal because performance on successive reversal of eight novel problems was not different from that seen with the old familiar task. Set acquisition was confirmed when proficient reversal was eventually achieved on both old and new concurrent tasks. Thus, “concurrent reversal set” did develop, but it required arduous training to overcome proactive interference effects on memory. The ubiquitous influence of measurement context on organization of monkey memory was noted. |
| Address |
Kent State University, Kent, Ohio 44242, USA. rtreichl@kent.edu |
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English |
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1435-9448 |
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PMID:15365875 |
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no |
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Equine Behaviour @ team @ |
Serial |
2512 |
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| Author |
Treichler, F.R.; Van Tilburg, D. |
| Title |
Premise-pair training for valid tests of serial list organization in macaques |
Type |
Journal Article |
| Year |
2002 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
| Volume |
5 |
Issue |
2 |
Pages |
97-105 |
| Keywords |
Animals; *Discrimination Learning; Female; Macaca/*psychology; *Memory |
| Abstract |
This study evaluated the role of several different training procedures on (1) efficiency of acquisition and (2) organizational characteristics of memory for lists that could be serially ordered. Five macaque monkeys were trained via two-choice object discriminations in a formboard apparatus on several five-item-series tasks that provided different levels of intrasession conditionality. Although ease of acquisition differed for subsets of the constituent pairs, concurrent inclusion of the four premise pairs that defined a list required equivalent amounts of training on every task. All training procedures yielded similar retention-test performances and showed common organizational properties (on both error and latency measures) consistent with the view that lists were retained as internally represented ordered series. Test outcomes emphasized the need for integrated exposition of all concurrent conditional relationships to allow appropriate tests of serial organization. However, if given such training, the monkeys revealed integrated serial memory even though they had never seen many of the possible novel combinations of list items. In overview, their performances offered further definition of the procedures required for valid assessment of inferential properties in comparative cognition. |
| Address |
Department of Psychology, Kent State University, Kent, OH 44242-0001, USA. rtreichl@kent.edu |
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1435-9448 |
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| Notes |
PMID:12150042 |
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no |
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Equine Behaviour @ team @ |
Serial |
2602 |
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| Author |
Washburn, D.A.; Astur, R.S. |
| Title |
Exploration of virtual mazes by rhesus monkeys (Macaca mulatta) |
Type |
Journal Article |
| Year |
2003 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
| Volume |
6 |
Issue |
3 |
Pages |
161-168 |
| Keywords |
Animals; Choice Behavior/*physiology; Computer Peripherals; Macaca mulatta/*physiology; Male; Maze Learning/*physiology; Space Perception/*physiology; User-Computer Interface |
| Abstract |
A chasm divides the huge corpus of maze studies found in the literature, with animals tested in mazes on the one side and humans tested with mazes on the other. Advances in technology and software have made possible the production and use of virtual mazes, which allow humans to navigate computerized environments and thus for humans and nonhuman animals to be tested in comparable spatial domains. In the present experiment, this comparability is extended even further by examining whether rhesus monkeys (Macaca mulatta) can learn to explore virtual mazes. Four male macaques were trained to manipulate a joystick so as to move through a virtual environment and to locate a computer-generated target. The animals succeeded in learning this task, and located the target even when it was located in novel alleys. The search pattern within the maze for these animals resembled the pattern of maze navigation observed for monkeys that were tested on more traditional two-dimensional computerized mazes. |
| Address |
Department of Psychology, Georgia State University, Atlanta, GA 30303, USA. dwashburn@gsu.edu |
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1435-9448 |
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| Notes |
PMID:12750961 |
Approved |
no |
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Equine Behaviour @ team @ |
Serial |
2569 |
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| Author |
Washburn, D.A.; Smith, J.D.; Shields, W.E. |
| Title |
Rhesus monkeys (Macaca mulatta) immediately generalize the uncertain response |
Type |
Journal Article |
| Year |
2006 |
Publication |
Journal of Experimental Psychology. Animal Behavior Processes |
Abbreviated Journal |
J Exp Psychol Anim Behav Process |
| Volume |
32 |
Issue |
2 |
Pages |
185-189 |
| Keywords |
Adaptation, Psychological; Animals; *Cognition; *Discrimination Learning; *Generalization (Psychology); Macaca mulatta/*psychology; Male; *Uncertainty |
| Abstract |
Rhesus monkeys (Macaca mulatta) have learned, like humans, to use an uncertain response adaptively under test conditions that create uncertainty, suggesting a metacognitive process by which human and nonhuman primates may monitor their confidence and alter their behavior accordingly. In this study, 4 rhesus monkeys generalized their use of the uncertain response, without additional training, to 2 familiar tasks (2-choice discrimination learning and mirror-image matching to sample) that predictably and demonstrably produce uncertainty. The monkeys were significantly less likely to use the uncertain response on trials in which the answer might be known. These results indicate that monkeys, like humans, know when they do not know and that they can learn to use a symbol as a generalized means for indicating their uncertainty. |
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Department of Psychology, Georgia State University, Atlanta, 30303, USA. dwashhburn@gsu.edu |
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0097-7403 |
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| Notes |
PMID:16634662 |
Approved |
no |
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Equine Behaviour @ team @ |
Serial |
2760 |
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| Author |
Williams, N. |
| Title |
Evolutionary psychologists look for roots of cognition |
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| Year |
1997 |
Publication |
Science (New York, N.Y.) |
Abbreviated Journal |
Science |
| Volume |
275 |
Issue |
5296 |
Pages |
29-30 |
| Keywords |
Animals; *Behavior, Animal; Birds; *Cognition; *Evolution; Female; Humans; Macaca mulatta/psychology; Male; Memory; Reward; *Social Sciences |
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0036-8075 |
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PMID:8999531 |
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no |
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Equine Behaviour @ team @ |
Serial |
2845 |
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