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	Author	Brannon, E.M.; Terrace, H.S.
	Title	Ordering of the numerosities 1 to 9 by monkeys			Type	Journal Article
	Year	1998	Publication	Science (New York, N.Y.)	Abbreviated Journal	Science
	Volume	282	Issue	5389	Pages	746-749
	Keywords	Animals; Discrimination (Psychology); Macaca mulatta/psychology; Mathematics; Mental Processes
	Abstract	A fundamental question in cognitive science is whether animals can represent numerosity (a property of a stimulus that is defined by the number of discriminable elements it contains) and use numerical representations computationally. Here, it was shown that rhesus monkeys represent the numerosity of visual stimuli and detect their ordinal disparity. Two monkeys were first trained to respond to exemplars of the numerosities 1 to 4 in an ascending numerical order (1 --> 2 --> 3 --> 4). As a control for non-numerical cues, exemplars were varied with respect to size, shape, and color. The monkeys were later tested, without reward, on their ability to order stimulus pairs composed of the novel numerosities 5 to 9. Both monkeys responded in an ascending order to the novel numerosities. These results show that rhesus monkeys represent the numerosities 1 to 9 on an ordinal scale.
	Address	Department of Psychology, Columbia University, New York, NY 10027, USA. liz@psych.columbia.edu
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0036-8075	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:9784133			Approved	no
	Call Number	refbase @ user @			Serial	606
Permanent link to this record



	Author	Parr, L.A.; Winslow, J.T.; Hopkins, W.D.; de Waal, F.B.
	Title	Recognizing facial cues: individual discrimination by chimpanzees (Pan troglodytes) and rhesus monkeys (Macaca mulatta)			Type	Journal Article
	Year	2000	Publication	Journal of comparative psychology (Washington, D.C. : 1983)	Abbreviated Journal	J Comp Psychol
	Volume	114	Issue	1	Pages	47-60
	Keywords	Animals; Discrimination Learning; Facial Expression; Female; Macaca mulatta/psychology; Male; Mental Recall; Pan troglodytes/psychology; Perceptual Masking; *Social Perception; Species Specificity
	Abstract	Faces are one of the most salient classes of stimuli involved in social communication. Three experiments compared face-recognition abilities in chimpanzees (Pan troglodytes) and rhesus monkeys (Macaca mulatta). In the face-matching task, the chimpanzees matched identical photographs of conspecifics' faces on Trial 1, and the rhesus monkeys did the same after 4 generalization trials. In the individual-recognition task, the chimpanzees matched 2 different photographs of the same individual after 2 trials, and the rhesus monkeys generalized in fewer than 6 trials. The feature-masking task showed that the eyes were the most important cue for individual recognition. Thus, chimpanzees and rhesus monkeys are able to use facial cues to discriminate unfamiliar conspecifics. Although the rhesus monkeys required many trials to learn the tasks, this is not evidence that faces are not as important social stimuli for them as for the chimpanzees.
	Address	Department of Psychology, Emory University. parr@rmy.emory.edu
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0735-7036	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:10739311			Approved	no
	Call Number	refbase @ user @			Serial	191
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	Author	de Waal, F.B.
	Title	Macaque social culture: development and perpetuation of affiliative networks			Type	Journal Article
	Year	1996	Publication	Journal of comparative psychology (Washington, D.C. : 1983)	Abbreviated Journal	J Comp Psychol
	Volume	110	Issue	2	Pages	147-154
	Keywords	Animals; Dominance-Subordination; Female; Macaca mulatta/psychology; Male; Maternal Behavior; Peer Group; Sexual Behavior, Animal; Social Behavior; Social Distance; Social Environment
	Abstract	Maternal affiliative relations may be transmitted to offspring, similar to the way in which maternal rank determines offspring rank. The development of 23 captive female rhesus monkeys (Macaca mulatta) was followed from the day of birth until adulthood. A multivariate analysis compared relations among age peers with affiliative relations, kinship, and rank distance among mothers. Maternal relations were an excellent predictor of affiliative relations among daughters, explaining up to 64% of the variance. Much of this predictability was due to the effect of kinship. However, after this variable had been controlled, significant predictability persisted. For relations of female subjects with male peers, on the other hand, maternal relations had no significant predictive value beyond the effect of kinship. One possible explanation of these results is that young rhesus females copy maternal social preferences through a process of cultural learning.
	Address	Department of Psychology, Emory University, Atlanta, Georgia 30322, USA. dewaal@rmy.emory.edu
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0735-7036	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:8681528			Approved	no
	Call Number	refbase @ user @			Serial	204
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	Author	Capitanio, J.P.; Widaman, K.F.
	Title	Confirmatory factor analysis of personality structure in adult male rhesus monkeys (Macaca mulatta)			Type	Journal Article
	Year	2005	Publication	American journal of primatology	Abbreviated Journal	Am. J. Primatol.
	Volume	65	Issue	3	Pages	289-294
	Keywords	Animals; Behavior, Animal; Macaca mulatta/psychology; Male; *Personality; Psychometrics; Social Behavior
	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.
	Address	Department of Psychology, University of California-Davis, Davis, California 95616, USA. jpcapitanio@ucdavis.edu
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0275-2565	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:15772988			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	4111
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	Author	Coleman, K.; Tully, L.A.; McMillan, J.L.
	Title	Temperament correlates with training success in adult rhesus macaques			Type	Journal Article
	Year	2005	Publication	American journal of primatology	Abbreviated Journal	Am. J. Primatol.
	Volume	65	Issue	1	Pages	63-71
	Keywords	Animals; Female; Inhibition (Psychology); Learning; Macaca mulatta/psychology; Reinforcement (Psychology); *Temperament
	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.
	Address	Oregon National Primate Research Center, Beaverton, Oregon 97006, USA. colemank@ohsu.edu
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0275-2565	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:15645460			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	4112
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	Author	Judge, P.G.; de Waal, F.B.
	Title	Intergroup grooming relations between alpha females in a population of free-ranging rhesus macaques			Type	Journal Article
	Year	1994	Publication	Folia primatologica; international journal of primatology	Abbreviated Journal	Folia Primatol (Basel)
	Volume	63	Issue	2	Pages	63-70
	Keywords	Animals; Animals, Wild; Female; Grooming; Macaca mulatta/psychology; Male; Population Density; *Social Behavior
	Abstract	Intergroup affiliation among female rhesus macaques, Macaca mulatta, was examined in the captive free-ranging colony of Morgan Island, S.C., USA. The provisioned colony has many social groups (35) and is maintained at a relatively high population density (21 animals/ha) with a relatively low adult male to female ratio (1:8.8). Focal and ad libitum samples were collected on 32 adults (3 males and 29 females) from two groups. Although infrequent, grooming was observed between adult females from different groups, and alpha females were the main participants in these interactions. Colony records indicated that none of the intergroup grooms was between females formerly from a common group. Relations between familiar neighboring groups may be maintained by a combination of both affiliative and aggressive behavior.
	Address	Yerkes Regional Primate Research Center, Lawrenceville, Ga 30243
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0015-5713	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:7813977			Approved	no
	Call Number	refbase @ user @			Serial	208
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	Author	Capitanio, J.P.
	Title	Personality dimensions in adult male rhesus macaques: prediction of behaviors across time and situation			Type	Journal Article
	Year	1999	Publication	American journal of primatology	Abbreviated Journal	Am. J. Primatol.
	Volume	47	Issue	4	Pages	299-320
	Keywords	Animals; Behavior, Animal; Forecasting; Macaca mulatta/psychology; Male; *Personality; Psychometrics; Social Behavior
	Abstract	The idea that consistencies in behavior exist over time and across situations underlies human personality research. Although several studies have examined personality in nonhuman primates, there are very few data showing the predictive power of personality factors. The goal of the present study was to determine whether personality dimensions, identified in adult male rhesus monkeys living in half-acre cages, predicted behavior in situations different from the one from which the dimensions were originally derived and at time points of up to 4.5 years after the original assessments. Four personality dimensions (Sociability, Confidence, Excitability, and Equability) were identified using psychometric procedures and were correlated with behaviors recorded in several situations: the animals' natal groups, during tests of behavioral responsiveness while in individual cages, in small stable and unstable social groups, while viewing stimulus videotapes, and during stable social dyads. Results indicated substantial predictability. Sociability reflected a greater tendency to engage in affiliative interactions. Confidence correlated with more aggressive behaviors and with behaviors that suggest less attractiveness. Animals high in Excitability were somewhat inconsistent in their social behavior, perhaps reflecting hyper-responsiveness to novel circumstances and thwarted opportunities for escape. Equability appeared to be related to a less aggressive, more passive, style of interaction. Excitability and Equability appear to reflect more stylistic components of social behavior, whereas Sociability and Confidence may be more content-based dimensions. Sociability was strongly related to size of kin network in the animals' natal groups, suggesting an important role for ontogeny in this dimension. These data suggest that a limited number of personality dimensions exist in adult male rhesus macaques, and that these dimensions have predictive power that is both long-term and cross situational.
	Address	Department of Psychology and California Regional Primate Research Center, University of California, Davis 95616, USA. jpcapitanio@ucdavis.edu
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0275-2565	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:10206208			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	4116
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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.
	Address	Department of Psychology, Georgia State University, Atlanta, 30303, USA. dwashhburn@gsu.edu
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0097-7403	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:16634662			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	2760
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	Author	Brannon, E.M.; Cantlon, J.F.; Terrace, H.S.
	Title	The role of reference points in ordinal numerical comparisons by rhesus macaques (Macaca mulatta)			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	120-134
	Keywords	Animals; Cognition; Discrimination (Psychology); Generalization (Psychology); Macaca mulatta/psychology; Male; Mathematics; *Pattern Recognition, Visual
	Abstract	Two experiments examined ordinal numerical knowledge in rhesus macaques (Macaca mulatta). Experiment 1 replicated the finding (E. M. Brannon & H. S. Terrace, 2000) that monkeys trained to respond in descending numerical order (4-->3-->2-->1) did not generalize the descending rule to the novel values 5-9 in contrast to monkeys trained to respond in ascending order. Experiment 2 examined whether the failure to generalize a descending rule was due to the direction of the training sequence or to the specific values used in the training sequence. Results implicated 3 factors that characterize a monkey's numerical comparison process: Weber's law, knowledge of ordinal direction, and a comparison of each value in a test pair with the reference point established by the first value of the training sequence.
	Address	Center for Cognitive Neuroscience and Department of Psychological and Brain Sciences, Duke University, Durham, NC 27708, USA. brannon@duke.edu
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0097-7403	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:16634655			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	2761
Permanent link to this record



	Author	Beran, M.J.; Smith, J.D.; Redford, J.S.; Washburn, D.A.
	Title	Rhesus macaques (Macaca mulatta) monitor uncertainty during numerosity judgments			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	111-119
	Keywords	Animals; Cognition; Judgment; Macaca mulatta/psychology; Male; Mathematics; Pattern Recognition, Visual; *Uncertainty
	Abstract	Two rhesus macaques (Macaca mulatta) judged arrays of dots on a computer screen as having more or fewer dots than a center value that was never presented in trials. After learning a center value, monkeys were given an uncertainty response that let them decline to make the numerosity judgment on that trial. Across center values (3-7), errors occurred most often for sets adjacent in numerosity to the center value. The monkeys also used the uncertainty response most frequently on these difficult trials. A 2nd experiment showed that monkeys' responses reflected numerical magnitude and not the surface-area illumination of the displays. This research shows that monkeys' uncertainty-monitoring capacity extends to the domain of numerical cognition. It also shows monkeys' use of the purest uncertainty response possible, uncontaminated by any secondary motivator.
	Address	Language Research Center, Georgia State University, Atlanta, 30302, USA. mjberan@yahoo.com
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0097-7403	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:16634654			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	2762
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