Results 161 to 170 of about 3,211 (207)

Comparative cognition: Capuchin monkeys believe in magic

Current Biology, 2023
Capuchin monkeys are unique among New World monkeys for their manual dexterity and use of tools. New research using magical sleight of hand shows visual perception of others' actions paralleling their manual skills.
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Food-exchange with humans in brown capuchin monkeys

Primates, 2005
To assess how brown capuchin monkeys (Cebus apella) delay gratification and maximize payoff, we carried out four experiments in which six subjects could exchange food pieces with a human experimenter. The pieces differed either in quality or quantity. In qualitative exchanges, all subjects gave a piece of food to receive another of higher value.
Drapier, Maud, Chauvin, Christophe, Dufour, Valerie, Uhlrich, Pierre, Thierry, Bernard   +4 more
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Working memory in capuchin monkeys (Cebus apella)

Behavioural Brain Research, 2002
It has been suggested that delayed (non-) matching to sample (DNMTS/DMTS) tasks using trial-unique stimuli and short, as well as longer delay intervals, can provide important insights into animal cognition. Therefore, this research examined the capability of the New World capuchin monkey (Cebus apella) in perform trial-unique DMTS and DNMTS tasks ...
Maria Clotilde H, Tavares, Carlos, Tomaz
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Cholangiocarcinoma in a Capuchin Monkey ( Cebus albifrons )

Veterinary Pathology, 1980
Brief Communication 30 OLAFSON, P.: Congenital cardiac anomalies in animals. Bull Int Assoc Med Mus 19 129134, 1939 3 1 PATTERSON, D.F.; PYLE, R.L.; VAN MIEROP, L.; MELBIN, J.; OLSON, M.: Hereditary defects of the conotruncal septum in Keeshond dogs: pathologic and genetic studies.
R J, Brown, T P, O'Neill, M J, Kessler, D, Andress   +3 more
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An inversion effect modified by expertise in capuchin monkeys

Animal Cognition, 2011
The face inversion effect may be defined as the general impairment in recognition that occurs when faces are rotated 180°. This phenomenon seems particularly strong for faces as opposed to other objects and is often used as a marker of a specialized face-processing mechanism.
Jennifer J, Pokorny, Christine E, Webb, Frans B M, de Waal   +2 more
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Resistance of capuchin monkeys to reinfection with Schistosoma haematobium

Transactions of the Royal Society of Tropical Medicine and Hygiene, 1988
Capuchin monkeys were resistant to reinfection with Schistosoma haematobium one year after exposure to 500 cercariae, but worms in these monkeys continued to produce normal numbers of eggs. Monkeys were apparently completely refractory to reinfection when challenged 2-5 years after an initial exposure of 1000 to 2000 cercariae.
A W, Cheever, R H, Duvall, R E, Kuntz, T C, Huang, J A, Moore   +4 more
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Handedness and cortisol in tufted capuchin monkey infants

Developmental Psychobiology, 2000
In this research, we examined the relationship between handedness and levels of plasma cortisol in infant monkeys (Cebus apella). Specifically, we sought to test the hypothesis that stress functioning is related to hemispheric specialization and is manifested in a positive correlation between cortisol levels and the frequency of right- versus left-hand
G C, Westergaard, G, Byrne, S J, Suomi
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Capuchin monkey research priorities and urgent issues

American Journal of Primatology, 2014
The “Capuchin research community roundtable: working together towards a comparative biology of Cebus and Sapajus” was held at the International Primatological Society Congress in Cancún, Mexico, August 2012. Goals of the roundtable were to strengthen interactions among the capuchin research community, and to prioritize and coordinate research and ...
Jessica W, Lynch Alfaro, Patricia, Izar, Renata G, Ferreira   +2 more
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Intrinsic organization of the suprachiasmatic nucleus in the capuchin monkey

Brain Research, 2014
The suprachiasmatic nucleus (SCN), which is the main circadian biological clock in mammals, is composed of multiple cells that function individually as independent oscillators to express the self-sustained mRNA and protein rhythms of the so-called clock genes.
Rocha, V. A., Frazao, R., Campos, L. M. G., Mello, P., Donato, J., Cruz-Rizzolo, R. J., Nogueira, M. I., Pinato, Luciana   +7 more
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Tool choice on the basis of rigidity in capuchin monkeys

Animal Cognition, 2011
Wild capuchin monkeys select stone tools to crack open nuts on the basis of their weight and friability, two non-visual functional properties. Here, we investigated whether they would select new stick-like tools on the basis of their rigidity. In Experiment 1, subjects faced an out-of-reach reward and a choice of three unfamiliar tools differing in ...
Manrique H.M., Sabbatini G., Call J., Visalberghi E.   +3 more
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