Sentences with phrase «for increased brain size»

They also feel that by enhancing social behaviors, a «dopamine - dominated striatum» personality type, as they call it, would have led to selection for increased brain size and also language.

«They have found a smoking gun in the human genome that connects a regulatory element with a proposed pathway for increasing brain size,» says Todd Preuss, a neuroanatomist at the Yerkes National Primate Research Center in Atlanta, who was not involved with the work.

Not exact matches

Blakemore argues that a single gene mutation could in fact have been the cause of this increase - for in fact only one extra cell - division step would cause a doubling of brain size.

But whatever the immediate reasons, the enlarged brain could perform (as a consequence of its improved structure) all manner of operations bearing no direct relation to the original impetus for its increase in size.

Page and his colleagues, who use animal models to understand how autism risk factors impact the developing brain and to identify potential treatments for the condition, have found that animals with mutations in the autism risk gene phosphatase and tensin homolog (Pten) mimic aspects of autism, including increased brain size, social deficits and increased repetitive behavior.

The pituitary gland at the base of the brain — which releases a wide range of hormones, including some responsible for regulating reproduction — showed the opposite effect, apparently increasing in size during pregnancy.

This article was originally published with the title «Brain size has increased for most of our existence, so why has it started to diminish for the past few thousand years?»

These results collectively suggest that neural stem cells need MSI1 to generate enough neurons for normal brain size, but the presence of MSI1 also increases the vulnerability of these cells to Zika infection, leading to the death of the population which ultimately results in microcephaly.

When the researchers looked at brain size, they found that for fighters who had increasing levels of tau over time, there was a 7 percent decline in the volume of their thalamus, which is located in the center of the brain and regulates sleep, consciousness, alertness, cognitive function and language while also sending sensory and movement signals to other portions of the brain.

The new paper «Extinction Reverses Olfactory Fear Conditioned Increases in Neuron Number and Glomerular Size» highlights the results of a first of its kind study in which researchers reveal that the olfactory system in the brain is biologically and structurally more sensitive to trauma cues than previously thought, and that it's possible for fear behaviors associated with emotional learning to be reversed through exposure - based talk therapy.

He hinted that gestural theory could clear up another mystery about this period as well: why the stone tools of these early hominids show little evolution for almost two million years, despite increases in brain size.

William H. Calvin's marvelous A Brain for All Seasons argues that such cycles of cool, crash, and burn powered the pump for the enormous increase in brain size and complexity in human beBrain for All Seasons argues that such cycles of cool, crash, and burn powered the pump for the enormous increase in brain size and complexity in human bebrain size and complexity in human beings.

The Brain of a four - month - old puppy has increased up to 10 x larger than it was at birth and yet still retains the same number of cells, so what accounts for this huge increase in size?

Size could just be a byproduct — reorganization of the brain might be the main thing, and the genes for reorganization might have had the side effect of increasing size at the same time, not being versatile enough to hold size constant while rearranging thinSize could just be a byproduct — reorganization of the brain might be the main thing, and the genes for reorganization might have had the side effect of increasing size at the same time, not being versatile enough to hold size constant while rearranging thinsize at the same time, not being versatile enough to hold size constant while rearranging thinsize constant while rearranging things).

Yes, brain size increase could have been for intelligence in general.

William H. Calvin's marvelous A Brain for All Seasons argues that such cycles of cool, crash, and burn powered the pump for the enormous increase in brain size and complexity in human beBrain for All Seasons argues that such cycles of cool, crash, and burn powered the pump for the enormous increase in brain size and complexity in human bebrain size and complexity in human beings.