Results 51 to 60 of about 2,094 (177)

Early Detection of Neuroinflammation and White Matter Damage Following Dorsal Spinal Nerve Root Sectioning in a Nonhuman Primate Model

Magnetic Resonance in Medicine, Volume 95, Issue 5, Page 2786-2796, May 2026.
ABSTRACT Purpose Dorsal rhizotomy, or spinal dorsal nerve root lesioning, is a surgical procedure used to treat intractable nerve pain by selectively severing sensory afferent nerve roots. This study aimed to evaluate whether multiparametric MRI, including diffusion tensor imaging (DTI), quantitative magnetization transfer (qMT), chemical exchange ...
Feng Wang, John C. Gore, Li Min Chen
wiley   +1 more source

Dos galhos às grades: cotidiano e relações interespécies no “Bosque”. Reflexões sobre as interações face a face entre humanos e macacos-de-cheiro (Saimiri sciureus sciureus) na cidade (Belém-PA)

Horizontes Antropológicos
Resumo: A partir da experiência etnográfica junto às paisagens do zoo do Bosque Rodrigues Alves, na cidade de Belém (PA), nos voltamos às relações entre humanos e não humanos, mais diretamente às interações cotidianas entre tratadores, biólogos, médicos ...
Flávio Leonel Abreu da Silveira*, Matheus Henrique Pereira da Silva**   +1 more
doaj   +1 more source

Composition of myelin from peripheral and central nervous systems of the squirrel monkey

Journal of Lipid Research, 1967
Myelin was prepared from the brachial plexus and cervical spinal cord of adult squirrel monkeys (Saimiri sciureus). Brachial plexus myelin contained a larger amount of sphingomyelin and smaller amounts of cholesterol, lipid galactose, ethanolamine ...
L.A. Horrocks
doaj   +1 more source

Gestural Sequences in Wild Spider Monkeys (Ateles geoffroyi)

American Journal of Primatology, Volume 88, Issue 4, April 2026.
Geoffroy's spider monkeys produce gestural sequences in the wild, mostly during aggressive, playful and sexual interactions. ABSTRACT To date, research on gestural communication in species other than great apes has been quite limited, especially in their natural habitat, although including a broader range of species in different settings is essential ...
Eva Corral, Sara Cardoso Rodriguez, Katja Liebal, Miquel Llorente, Federica Amici   +4 more
wiley   +1 more source

Partner Choice and Context‐Dependent Sex Differences in Rat Rough‐and‐Tumble Play

European Journal of Neuroscience, Volume 63, Issue 3, February 2026.
When given partner choice in triadic play, male rats showed a robust preference for female partners, whereas females formed partner preferences that were not sex specific. Females initiated less play in mixed‐sex groups but played at male‐typical levels in all‐female groups, demonstrating that sex differences in rough‐and‐tumble play arise both from ...
Jackson R. Ham, Sergio M. Pellis, Robert J. McDonald   +2 more
wiley   +1 more source

Saimiri sciureus

, 1993
Saimiri sciureus (Linnaeus, 1758). Syst. Nat., 10th ed., 1:29. TYPE LOCALITY: French Guyana, Cayenne. DISTRIBUTION: N Brazil, Marajo Isl (Brazil), Guyana, French Guiana, Surinam, Venezuela, Colombia, E Ecuador, NE Peru. STATUS: CITES - Appendix II.
openaire   +2 more sources

Cicada as a food for mammals: a global review and implications for mammal behaviour and populations

Wildlife Biology, Volume 2026, Issue 1, January 2026.
Cicadas (Hemiptera: Cicadidae) are among the most important insect prey for many vertebrate predators, including birds and mammals, owing to their large size and high nutritional value. Although the ecological roles of cicadas as prey for birds have been well documented, the interactions between mammals and cicadas are relatively unknown.
Kanzi M. Tomita
wiley   +1 more source

Descrição morfológica dos ramos colaterais viscerais da aorta abdominal do macaco-de-cheiro Morphological description of the collateral visceral branches from abdominal aorta of squirrel monkey

Ciência Rural, 2011
O Saimiri sciureus é um primata não humano existente na região amazônica e não consta na lista de animais em perigo de extinção, de acordo com o IBAMA. Neste trabalho, sistematizou-se os ramos colaterais viscerais da aorta abdominal de seis animais sendo
Maria Rogéria Menezes da Silva, Ana Rita Lima, Antônio Carlos Cunha Lacreta Junior, Mirian Naomi Ishizaki, Aline Amaral Imbeloni, José Augusto Pereira Carneiro Muniz, Érika Renata Branco   +6 more
doaj   +1 more source

Tolman's Sunburst Maze 80 Years on: A Meta‐Analysis Reveals Poor Replicability and Little Evidence for Shortcutting

European Journal of Neuroscience, Volume 63, Issue 1, January 2026.
In 1946, Tolman et al. reported that rats could take a novel shortcut to a goal after training on an indirect route, supporting the Cognitive Map theory. However, a review of subsequent Sunburst maze studies shows this is an outlier: shortcutting has been observed in only a relatively small fraction of experiments.
Éléonore Duvelle, Roddy M. Grieves
wiley   +1 more source

Primatas da Reserva Biológica do Lago Piratuba, Amapá, Brasil: ocorrência, conflitos e ameaças

Biodiversidade Brasileira, 2017
Embora a Reserva Biológica do Lago Piratuba (RBLP) seja uma unidade de conservação de proteção integral, há incidências de pressões e ameaças que podem comprometer a conservação de sua biota. Neste trabalho, avaliou-se a presença de primatas na RBLP por
Eduardo Marques Santos Júnior, Gerson Buss, Renata Bocorny de Azevedo, Leandro Jerusalinsky, Marcelo Derzi Vidal   +4 more
doaj   +3 more sources