Results 131 to 140 of about 1,554 (172)
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Posture and Reaching in Tufted Capuchins (Cebus apella)
Laterality, 1997This research investigated the effects of posture on lateral bias for food reaching in tufted capuchin monkeys ( Cebus apella ) by comparing hand preferences for quadrupedal and bipedal reaching. Several findings of this investigation warrant discussion.
G C, Westergaard +3 more
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Working memory in capuchin monkeys (Cebus apella)
Behavioural Brain Research, 2002It 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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Transfer pathways between the ovaries and the uterus in the cebus monkeys (Cebus apella)
General and Comparative Endocrinology, 2005The aim of this work was to study, in the Cebus apella monkey, the developmental changes in the microanatomy of the utero-ovarian ligament (UOL) and whether their vascular and neural elements might be involved in the transfer of signals between the ovaries and uterus. Sections including uterus, UOL, and ovary obtained from two foetuses, two prepubertal,
Carlos A, Nagle +4 more
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Coping with Acute Crowding by Cebus apella
International Journal of Primatology, 2006Traditionally, scientists believed that crowded housing conditions increased aggression in animals. Recent research on captive primates fails to support a linear relationship between population density and aggressive behavior. Our study is the first to investigate the effects of acute crowding on a New World primate.
Megan L. van Wolkenten +3 more
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Metamemory in tufted capuchin monkeys (Cebus apella)
Animal Cognition, 2009Whereas evidence for metacognition by nonhuman primates has been obtained in great apes and old world monkeys, it is weaker in new world monkeys. For instance, capuchin monkeys may fail to recognize their own knowledge of the location of invisible bait. In the present study, we tested whether tufted capuchin monkeys would flexibly change their behavior
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Reactions of capuchin monkeys (Cebus apella) to multiple mirrors
Behavioural Processes, 2004This study attempted a new manipulation to prompt mirror self-recognition in a monkey species through simultaneous exposure to two mirrors. Four capuchin monkeys (Cebus apella) were exposed to one large and one small mirror object with different reflective or configurational properties, which was thought to deepen their understanding of mirrors.
Annika, Paukner +2 more
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Postnatal heterochrony of the masticatory apparatus in Cebus apella and Cebus albifrons
Journal of Human Evolution, 1992Species of the genus Cebus have been characterized as omnivorous, although Cebus apella differs significantly from the other Cebus species in its ability to routinely consume hard fruits and nuts. Hard-object feeding behavior in C. apella is reflected in a suite of craniomandibular features that are related to the generation and dissipation of higher ...
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Early lateral bias in tufted capuchins (Cebus apella)
Developmental Psychobiology, 1998We investigated the development of lateral bias in infant tufted capuchins (Cebus apella) by recording head orientation during the first 2 postnatal weeks and hand preference during Weeks 23 to 24 and 47 to 48. We found that lateral bias for head orientation at 1 to 2 weeks was negatively related to hand preference at 23 to 24 weeks.
G C, Westergaard, G, Byrne, S J, Suomi
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Morphometric analysis of craniofacial growth in Cebus apella
American Journal of Physical Anthropology, 1991AbstractThe present study was undertaken to provide a quantitative description of craniofacial growth in Cebus apella in three dimensions. Landmarks from a cross‐sectional sample of sexed and dentally aged crania were collected using a 3Space digitizer. Two methods of three‐dimensional form analysis, euclidian distance matrix analysis (EDMA) and finite‐
B D, Corner, J T, Richtsmeier
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Picture processing in tufted capuchin monkeys (Cebus apella)
Behavioural Processes, 2009Although pictures are frequently used in place of real objects to investigate various aspects of cognition in different non-human species, there is little evidence that animals treat pictorial stimuli as representations of the real objects. In the present study, we carried out four experiments designed to assess picture processing in tufted capuchin ...
Truppa, Valentina +3 more
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