Results 41 to 50 of about 7,145,458 (289)

Human brain expansion during evolution is independent of fire control and cooking

Frontiers in Neuroscience, 2016
What makes humans unique? This question has fascinated scientists and philosophers for centuries and it is still a matter of intense debate. Nowadays, human brain expansion during evolution has been acknowledged to explain our empowered cognitive ...
Alianda Maira Cornélio, Alianda Maira Cornélio, Ruben Ernesto de Bittencourt-Navarrete, Ricardo ede Bittencourt Brum, Claudio Marcos Queiroz, Marcos Romualdo Costa   +5 more
doaj   +1 more source

Brain size variation along altitudinal gradients in the Asiatic Toad (Bufo gargarizans)

Ecology and Evolution, 2021
Size changes in brain and brain regions along altitudinal gradients provide insight into the trade‐off between energetic expenditure and cognitive capacity. We investigated the brain size variations of the Asiatic Toad (Bufo gargarizans) across altitudes
Zhongyi Yao, Yin Qi, Bisong Yue, Jinzhong Fu   +3 more
doaj   +1 more source

Selection for Reduced Fear of Humans Changes Brain and Cerebellum Size in Red Junglefowl in Line with Effects of Chicken Domestication

, 2023
A central part of the domestication syndrome is a reduction in relative brain size. In chickens, it has previously been shown that domesticated birds have smaller relative brain mass, but larger relative mass of cerebellum, compared to their ancestors ...
Felipe Cunha, Barros Da Cunha, Felipe,, Gjöen, Johanna,, Per Jensen, Jensen, Per, Gjöen, Johanna, Barros Da Cunha, Felipe, Johanna Gjøen, Jensen, Per,   +8 more
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Selection of Olduvai Domains during Evolution: A Role for Primate-Specific Splicing Super-Enhancer and RNA Guanine Quadruplex in Bipartite NBPF Exons

Brain Sciences, 2022
Olduvai protein domains (also known as DUF1220 or NBPF) have undergone the greatest human-specific increase in the copy number of any coding region in the genome.
Igor Vořechovský
doaj   +1 more source

Patterns and Factors Influencing Parrot (Order: Psittaciformes) Success in Establishing Thriving Naturalized Populations within the Contiguous United States

Animals, 2023
Parrots (Order: Psittaciformes) represent one of the most striking and ecomorphologically diverse avian clades, spanning more than two orders of magnitude in body size with populations occupying six continents.
Edwin Dickinson, Melody W. Young, Daniel Tanis, Michael C. Granatosky   +3 more
doaj   +1 more source

White matter damage and cognitive impairment after traumatic brain injury [PDF]

, 2010
White matter disruption is an important determinant of cognitive impairment after brain injury, but conventional neuroimaging underestimates its extent.
Powell, Jane Hilary, Leech, R, K. M. Kinnunen, Counsell, Serena Jane; id_orcid, Bonnelle, V., Sharp, D. J., Kinnunen, K. M., Hawkins, Peter Charlie; id_orcid, Patel, Maneesh Chandrakant, Patel, MC, M. C. Patel, Sharp, David James, Greenwood, Richard, D. J. Sharp, Hawkins, PC, Leech, R., Patel, M. C., Powell, Jane H., Greenwood, R, J. H. Powell, Counsell, S. J., Sharp, DJ, P. C. Hawkins, Counsell, SJ, Powell, JH, R. Greenwood, Kinnunen, KM, R. Leech, Bonnelle, Valerie, Leech, Robert, V. Bonnelle, Kinnunen, Kirsi Maria, Hawkins, R. C., S. J. Counsell   +33 more
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All brains are made of this: a fundamental building block of brain matter with matching neuronal and glial masses

Frontiers in Neuroanatomy, 2014
How does the size of the glial and neuronal cells that compose brain tissue vary across brain structures and species? Our previous studies indicate that average neuronal size is highly variable, while average glial cell size is more constant.
Bruno eMota, Suzana eHerculano-Houzel
doaj   +1 more source

Prehension and perception of size in left visual neglect [PDF]

, 2001
Right hemisphere damaged patients with and without left visual neglect, and age-matched controls had objects of various sizes presented within left or right body hemispace. Subjects were asked to estimate the objects' sizes or to reach out and grasp them,
C. L. Pritchard, McIntosh, R D, R. C. Roberts, H. C. Dijkerman, Milner, A D, A. D. Milner, Pritchard, C L, Dijkerman, H C, R. D. McIntosh, Roberts, R C   +9 more
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Population differences in brain morphology and microstructure among Chinese, Malay, and Indian neonates [PDF]

, 2012
We studied a sample of 75 Chinese, 73 Malay, and 29 Indian healthy neonates taking part in a cohort study to examine potential differences in neonatal brain morphology and white matter microstructure as a function of ethnicity using both structural T2 ...
Keith M Godfrey, Abdul-Rahman, M.F., Anqi Qiu, Godfrey, K.M., Saw, S.-M., Muhammad Farid Abdul-Rahman, Peter D Gluckman, Rifkin-Graboi Anne, Kwek Kenneth, Chong, Y.-S., Kenneth Kwek, Michael J Meaney, Gluckman Peter D., Meaney Michael J., Abdul-Rahman Muhammad Farid, Qiu Anqi, Seang-Mei Saw, Bai Jordan, Gluckman, P.D., Rifkin-Graboi, A., Chong, Y.S., Kwek, K., Yap-Seng Chong, Fortier Marielle V., Jordan Bai, Qiu, A., Saw Seang-Mei, Godfrey Keith M., Fortier, M.V., Meaney, M.J., Anne Rifkin-Graboi, Chong Yap-Seng, Marielle V Fortier, Bai, J., Saw, S.M.   +34 more
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Cellular scaling rules for the brain of Artiodactyla include a highly folded cortex with few neurons

Frontiers in Neuroanatomy, 2014
Quantitative analysis of the cellular composition of rodent, primate, insectivore and afrotherian brains has shown that nonneuronal scaling rules are similar across these mammalian orders that diverged about 95 million years ago, and therefore appear to ...
Rodrigo eSiqueira Kazu, Jose eMaldonado, Bruno eMota, Paul eManger, Suzana eHerculano-Houzel   +4 more
doaj   +1 more source