Sentences with phrase «brain evolution»
"Brain evolution" refers to the process of change and development in the structure and function of the brain over a long period of time. It refers to how the brain has evolved or grown and improved over generations to become more advanced and capable. Full definition
In recent years, many potential genetic mechanisms have been proposed to participate in human brain evolution.
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They can also live on their own, and this ability to switch between a social and a solitary lifestyle makes them valuable models for studying brain evolution.
The goal of the research was to better understand brain evolution in early rodents.
Understanding the link between brain evolution and cognition is a challenge, however, because it is impossible to observe the brain activity of extinct humans.
How do answers to these questions change across brain evolution?
«This adds one more gene to the short list of candidates important for human brain evolution,» he says.
The formative sequence of brain evolution guarantees the direction of the actualization.
«I was aware of research arguing that the use of the marine food web had played a significant role in brain evolution, and expansion, through the supply of omega - 3 fatty acids,» Duarte says via email while traveling.
Chimeric mice could also provide more clues about brain evolution by helping researchers identify astrocyte specializations that are unique to humans.
Now we have data and can infer what selective pressures were driving brain evolution in the radiation that led to mammals.»
«It opens up a whole world of possibilities about brain evolution.»
The results support the view that human brain evolution involved cellular specializations, including the elaboration of astrocyte structure and a boost in their ability to regulate communication between neurons at synapses, the researchers say.
Montgomery, S. H., Capellini, I., Barton, R. A. & Mundy, N. I. Reconstructing the ups and downs of primate brain evolution: implications for adaptive hypotheses and Homo floresiensis.
This rapidly evolving game created a new selective pressure that forced «Adam» and «Eve» to use their brains much more, thus forever driving human brain evolution forward.
BRAINY CHIMPS Some modern chimps have brain surface features that were thought to have signaled humanlike brain evolution in hominids from as early as 3 million years ago, scans suggest.
Hawks counters that it might be a little early to begin drawing conclusions about human brain evolution from genetic comparisons with archaic relatives.
«Even in the simplest social group possible, cognitive demands help shape brain evolution,» Wcislo says.
Many scientists apparently worry that proof of divergent brain evolution could be so racially polarizing that we, as a society, would almost be better off in the dark.
More recently, his lab started studying the genetic basis of human brain evolution as well as the signaling pathways underlying synaptic loss during early stages of Alzheimer's Disease progression.
This highly specific tool use has implications for cognition and brain evolution among cetaceans and could even be considered a case of problem solving, a phenomenon difficult to document in the wild, but well established in studies of captive bottlenose dolphins [48].
October 18, 2011 Young human - specific genes correlated with brain evolution Young genes that appeared since the primate branch split from other mammal species are expressed in unique structures of the developing human brain, a new analysis finds.
«This is the oldest skull researchers have found for Old World monkeys, so it's one of the only clues we have to their early brain evolution,» Benefit said.
Biological anthropologist Thomas Schoenemann of Indiana University Bloomington, who studies brain evolution, notes that proponents of H. floresiensis have insisted that scientists treat LB1 as representative of a new species unless a specific developmental anomaly can be matched to it.
A decade ago, the lead author on the new study, Masato Yoshizawa, wanted to understand brain evolution by investigating the effects of natural selection on behavior.
One of the newly spotted genes, ASPM, was recently linked to brain evolution by a team from the University of Chicago (Science, 9 September, p. 1662).
Far from a way to engineer smarter rodents, the work suggests that human brain evolution involved a major upgrade to cells called astrocytes.
Synaptosomal lactate dehydrogenase isoenzyme composition is shifted toward aerobic forms in primate brain evolution.
«Maybe the invention of this new type of stem cell was important in driving brain evolution,» says Mueller.
Such dramatic effects on brain size and function are unlikely in human carriers of BRCA1 mutations, the authors of the study note, but they propose the findings could shed light on the gene's role in brain evolution.
Martin, R. D. Human brain evolution in an ecological context.
The religious level of human beings (the ones with the «power») like ministers, popes, mormons, are aware that we have come to a point in our brains evolution that it makes no logical or scientific sense and intelligent people all over the world are rejecting the lies and monetary propaganda that religious leaders expect from their followers.
I'd rather use the brain evolution provided me with.
Among other uses, oVert will «open new doors» for understanding brain evolution in hard - to - find species, predicts Kara Yopak of the University of North Carolina in Wilmington, the neuroanatomy adviser to the project.
The researchers then looked at whether those nine metabolites might be important in human brain evolution.
Dartmouth neuroscientist Richard Granger, who studies brain evolution, thinks it may not take much.
In September they announced they had found key clues to human brain evolution.
The researchers identified fast - evolving species by comparing differences between groups with those obtained when simulating evolution at a constant rate across all lineages, and they found clear differences between tooth evolution and brain evolution.
«More broadly, our framework allows for new experiments in silico to study brain evolution, life history, and brain senescence.»
«Comparing human, chimpanzee and bonobo cells can give us clues to understand biological processes, such as infection, diseases, brain evolution, adaptation or genetic diversity,» says senior research associate Iñigo Narvaiza, who led the study with senior staff scientist Carol Marchetto at the Salk Institute in La Jolla.
It showed their evolutionary line splitting off from our own a little over 550,000 years ago, before modern humans emerged and before key changes in human brain evolution.
A cross section of human cortex shows the distribution of a protein fragment (red) that may have been key to human brain evolution.
Research interests: primate comparative genomics, adaptive evolution, human brain evolution, infectious diseases in primate hosts, HIV / SIV and AIDS, evolutionary medicine, colobines
«Our findings suggest that schizophrenia vulnerability rose after the divergence of modern humans from Neanderthals,» said Andreassen, adding that the results of their study support the hypothesis that schizophrenia is a by - product of human brain evolution.
Marta received the award for her work on the gene ARHGAP11B present only in humans and its key role in the expansion of the neocortex and brain evolution.
Second, Dunbar points out that social group size and diet need not be two alternative explanations of brain evolution.