"Brain volume" refers to the overall size or amount of space that the brain occupies. It measures how large or small the brain is.
Full definition
For example, some twins who had undergone the operation and had apparently normal brains when screened using ultrasound showed differences
in brain volume when screened using the more sensitive MRI technique.
As baby boomers round the corner into advanced age, avoiding loss
of brain volume becomes a must for optimal health.
The analysis of 121 people found that those with lower vitamin B12 levels scored worse on cognitive tests, and had
smaller brain volumes as revealed by MRI scans.
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.
Studies in animals and people have shown that physical activity generally
increases brain volume and can reduce the number and size of age - related holes in the brain's white and gray matter.
Studies show that patients who have lower levels of B12 have an increased risk for
brain volume loss.
The group identified eight genetic variants associated with
decreased brain volume, several found in over one - fifth of the world's population.
This technique allows us to
measure brain volumes safely in HD patients, as well as the volume of different brain regions.
Physical or mental activity levels also appeared to have little impact
on brain volume or the brain's sugar metabolism (energy use), the researchers said.
Eating healthy amounts of omega - 3 fatty acids is associated with
larger brain volume and better function.
I wouldn't necessarily expect to see
reduced brain volumes unless the kids were also subjected to stress levels comparable to those experienced by kids in poverty.
The nutrient levels within the blood accounted for a lot of the variation in both
brain volume as well as memory and thinking scores.
The results were the same when researchers adjusted for other factors that could
affect brain volume, such as age, education and having diabetes or high blood pressure.
Healthy individuals had to walk approximately 6 miles, or 72 city blocks, a week to
maintain brain volume and reduce cognitive decline risk significantly.
In an abstract presented at the conference, the researchers concluded that aerobic exercise «could preserve or possibly even
improve brain volumes» in people with early cognitive problems.
Compared to people who did not have diabetes, people who developed diabetes in middle age had a total
brain volume average of 2.9 percent smaller.
In the 8 participants for whom an adequate number of imaging studies were completed,
whole brain volume — the overall amount of brain tissue — decreased significantly throughout the study period.
Metal problems — initially believed to be aluminum,
then brain volume, then concentration of aluminum.
Magnetic resonance imaging scans and periodic cognitive tests were used to
assess brain volume and function.
A third study presented at the conference found that an unhealthy diet was correlated with
smaller brain volume.
It is well - established that childhood lead exposure leads to
decreased brain volume and adverse behavioral effects.
Those whose mothers smoked throughout pregnancy had smaller
total brain volumes and reduced amounts of grey and white matter in the superior frontal cortex, an area involved in regulating mood.
The results revealed that
greater brain volume was linked to greater amounts of physical activity across the board.
The results were the same when researchers adjusted for other factors that could
affect brain volume, such as age, education and having diabetes or high blood pressure.
Such studies, like the present one, have focused on differences
in brain volume or brain function in those people heavily engaged in meditation or spiritual practices compared to those who are not.
Even when the investigators removed the scans of 16 participants who were dependent on alcohol as well as cocaine, the link between cocaine use and
brain volume loss remained.
While it would seem that the loss of
brain volume over time is not what anyone would want to see and therefore that preservation of volume should be a good thing in terms of cognitive ability, it is still not fully clear exactly what this could mean in terms of memory and dementia.
Of those people, 562 had an MRI brain scan around age 73 to measure
overall brain volume, gray matter volume and thickness of the cortex, which is the outer layer of the brain.
There's another good reason why infants instinctively desire round - the - clock closeness: Humans are born with just 25 percent of their
adult brain volume, making us the least neurologically mature of any primate species at birth.
Postnatal decrease in circulating insulin - like growth factor - I and
low brain volumes in very preterm infants
Some 30 animals have been domesticated, he notes, and in the process every one of them has
lost brain volume — typically a 10 to 15 percent reduction compared with their wild progenitors.
A new study shows that older people who followed a Mediterranean diet retained
more brain volume over a three - year period than those who did not follow the diet as closely.
Addition of vitamin D to hypothermia and NAC following neonatal hypoxic ischemia improves functional outcomes and
preserves brain volume in male rodents, report researchers at the Medical University of South Carolina (MUSC) in the September 1, 2017 issue of Neuropharmacology.
Coles told the meeting that magnetic resonance imaging showed that subjects taking alemtuzumab had also lost
less brain volume than those taking Rebif, a proxy measure for overall tissue damage.
Developmental trajectories of
brain volume abnormalities in children and adolescents with attention - deficit / hyperactivity disorder
According to a 2008 study in the Archives of Neurology, heavy drinking over a long period of time seems to actually
shrink brain volume.
A cross-sectional method (SIENAX) was used to estimate normalized
brain volume from a single image, using the skull to normalize spatially, with respect to a standard image [31].
In addition, the 25 percent of the participants who had mild cognitive impairment associated with Alzheimer's also experienced an increase in
brain volume due to the higher amounts of exercise.
Ozanimod significantly slowed the loss of
brain volume compared with IFN — a hallmark of the disease that causes brain atrophy, disease progression and cognitive impairment.
Phrases with «brain volume»