Sentences with phrase «differences in brain size»

Past research has found a significant correlation between overall cognitive ability and individual differences in brain size, age, sex, social class, and ethnic background.

Ultimately, we will test how differences in brain size contribute to the shape and development of the skull between species and the evolution of rapid skull expansion found in mammals.

Differences in brain size within a species, such as humans, are relatively small, making it difficult to tease out the effects of brain size and the effects of other factors.

It also suggests dominance drives differences in brain size in sweat bees.

Despite differences in brain size, the researchers found striking similarities between primate species of gene expression in 16 regions of the brain — even in the prefrontal cortex, the seat of higher order learning that most distinguishes humans from other apes.

For example, it can tell us that race and gender differences in brain size are unrelated to intelligence.

This study is complementary to another that found adults with anorexia and individuals who had recovered from this illness also had differences in brain size, previously published in the American Journal of Psychiatry, 2013.

Scientists are particularly curious about differences in brain size, since adult Neandertals tend to have a cranial capacity of about 1,500 cubic centimeters and modern day humans have a cranial capacity of about 1,350 cubic centimeters.

«We want to see whether this difference in brain size has an effect on any of those developmental milestones,» Rogers said.

«We want to see whether this difference in brain size has an effect on any of those developmental milestones,» Dr. Rogers said.

Other factors may also be important in birds, which show a greater difference in brain size than bats.

Not exact matches

And because the underlying commitment is philosophical, the flimsiest facts are counted as evidence - as when the president of the National Academy of Sciences recently published an article arguing that evolution is confirmed by differences in the size of finch beaks, as though the sprawling evolutionary drama from biochemicals to the human brain could rest on instances of trivial, limited variation.

Everything from the chemicals in your new - mom brain, to your pants size can see some kind of difference.

The difference in diet explained 0.5 percent of the variation in total brain volume, an effect that was half the size of that due to normal aging.

These maps, they say, will show everything from relative sizes of anatomical features to differences in brains associated with age, race, gender, educational background, genetic composition, and other distinguishing characteristics.

Six month after this test phase, individual fish brains were measured to investigate the long term consequences of early group size on brain morphology, revealing differences in brain architecture.

In terms of size, there wasn't much difference in how brains varied among family members: Closely related individuals of both species tended to have very similar brain volumeIn terms of size, there wasn't much difference in how brains varied among family members: Closely related individuals of both species tended to have very similar brain volumein how brains varied among family members: Closely related individuals of both species tended to have very similar brain volumes.

Building on this work, the team has now determined that there are seven areas in our DNA where differences in the genetic code are associated with intracranial volume, which is the size of the skull cavity in which the brain resides.

Once differences in body and visual system size were taken into account, the researchers could then compare how much of the brain was left over for other types of cognition.

Besides the obvious size difference — the human brain is about three times larger than the chimp brain — little has been known about how the human brain and the rest of the nervous system changed in our lineage over evolutionary time.

First, sensitive MRI brain scans, that are able to very accurately measure the shape and size of people's brain, could measure differences amongst every group in the study.

«They are almost identical in body size, in stature, and in brain size, she notes, and the major differences (the hip and the foot) represent the younger Lucy's adaptation to bipedal walking.»

Neuroscientists have shown that chronic stress can even cause differences in grey and white matter in the brain, as well as the size and connectivity of the amygdala.

The difference in diet explained 0.5 % of the variation in total brain volume, an effect that was half the size of that due to normal aging.

If there's a difference in the size of brains among dog breeds, but bigger doesn't mean smarter, you might wonder which breeds are considered the smartest.

Differences in the sizes of the two halves of the brain, in the patterns of blood flow to the brain, and in the nerve impulses to the brain were often seen.

Differences have also been found in the size or activity of certain brains regions in some cases.

Developmental differences are correlated with relative brain size in birds: a comparative analysis

Morphologic studies offered some preliminary support for brain - related differences between children with and without the disorder, but additional studies with control groups of children with other psychiatric and developmental disorders and larger sample sizes will be necessary before brain morphology becomes useful in diagnosing ADHD.

Neurological research actually shows visible signs of difference in size and structure of healthy infant brains and those of infants who have been neglected or abused.