Results 31 to 40 of about 24,905 (218)

How task format affects cognitive performance:a memory test with two species of New World monkeys [PDF]

open access: yes, 2016
In cognitive tests, animals are often given a choice between two options and obtain a reward if they choose correctly. We investigated whether task format affects subjects' performance in a physical cognition test.
Burkart, Judith M.   +2 more
core   +3 more sources

Functionally referential signals: a promising paradigm whose time has passed [PDF]

open access: yes, 2012
Finding the evolutionary origins of human language in the communication systems of our closest living relatives has, for the last several decades, been a major goal of many in the field of animal communication generally and primate communication ...
Fischer, Julia, Wheeler, Brandon C
core   +1 more source

Thoracic radiography of healthy captive male and female Squirrel monkey (Saimiri spp.). [PDF]

open access: yesPLoS ONE, 2018
The purpose of this prospective study was to describe the normal anatomy and provide reference ranges for measurements of thoracic radiography on Squirrel monkeys (n = 13).
Blandine Houdellier   +4 more
doaj   +1 more source

Individual differences in zoo-housed squirrel monkeys’ (Saimiri sciureus) reactions to visitors, research participation, and personality ratings [PDF]

open access: yes, 2017
Understanding individual differences in captive squirrel monkeys is a topic of importance both for improving welfare by catering to individual needs, and for better understanding the results and implications of behavioral research.
Anderson   +38 more
core   +3 more sources

Biologic data of Macaca mulatta, Macaca fascicularis, and Saimiri sciureusused for research at the fiocruz primate center

open access: yesMemorias do Instituto Oswaldo Cruz, 2004
Physiological parameters of laboratory animals used for biomedical research is crucial for following several experimental procedures. With the intent to establish baseline biologic parameters for non-human primates held in closed colonies, hematological ...
Márcia Cristina Ribeiro Andrade   +7 more
doaj   +1 more source

The impact of civil war on forest wildlife in West Africa: Mammals in Gola Forest, Sierra Leone [PDF]

open access: yes, 2011
Human conflicts may sometimes benefit wildlife by depopulating wilderness areas but there is evidence from Africa that the impacts tend to be negative. The forested states of West Africa have experienced much recent human conflict but there have been no ...
Klop, E., Lindsell, J.A., Siaka, A.M.
core   +1 more source

Can squirrel monkeys learn an ABnA grammar? A re-evaluation of Ravignani et al. (2013) [PDF]

open access: yesPeerJ, 2017
Ravignani et al. (2013) habituated squirrel monkeys to sound sequences conforming to an ABnA grammar (n = 1, 2, 3), then tested them for their reactions to novel grammatical and non-grammatical sequences.
Stefano Ghirlanda
doaj   +2 more sources

Visible spatial contiguity of social information and reward affects social learning in brown capuchins (Sapajus apella) and children (Homo sapiens) [PDF]

open access: yes, 2017
Animal social learning is typically studied experimentally by the presentation of artificial foraging tasks. Although productive, results are often variable even for the same species. We present and test the hypothesis that one cause of variation is that
Whiten, Andrew, Wood, Lara A.
core   +3 more sources

Fairly flexible: brown-tufted capuchins and a squirrel monkey adjust their motor responses in a foraging task [PDF]

open access: yesPeerJ
Prior research on non-human primates has produced contradictory results regarding behavioral flexibility and habit formation. Most observational studies of wild primates show flexibility in foraging behavior, whereas experimental data suggest captive ...
Renee C. Russell   +3 more
doaj   +2 more sources

Proximate factors underpinning receiver responses to deceptive false alarm calls in wild tufted capuchin monkeys: is it counterdeception? [PDF]

open access: yes, 2012
Previous research demonstrates that tufted capuchin monkeys use terrestrial predator alarm calls in a functionally deceptive manner to distract conspecifics when feeding on contestable resources, although the success of this tactic is limited because ...
Byrne RW   +8 more
core   +1 more source

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