Brain

Alternating training improves motor learning

(Baltimore, MD) — Learning from one's mistakes may be better than practicing to perfection, according to a new study appearing in the October 19 issue of The Journal of Neuroscience. Researchers from the Kennedy Krieger Institute found that forcing people to switch from a normal walking pattern to an unusual one — and back again — made them better able to adjust to the unusual pattern the following day. The findings may help improve therapy for people relearning how to walk following stroke or other injury.

Young human-specific genes correlated with human 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.

The correlation suggests that scientists studying the evolution of the human brain should look to genes considered recent by evolutionary standards and early stages of brain development.

Autistic brains develop more slowly than healthy brains UCLA researchers say

Researchers at UCLA have found a possible explanation for why autistic children act and think differently than their peers. For the first time, they've shown that the connections between brain regions that are important for language and social skills grow much more slowly in boys with autism than in non-autistic children.

Pre-term babies' exposure to steroids associated with impaired brain growth

Premature infants exposed after birth to drugs known as glucocorticoids are at increased risk for having impaired growth of the cerebellum, according to findings from a new UCSF-led study. The cerebellum is a region of the brain associated with balance, motor learning, language and behavior.

Brain scans support findings that IQ can rise or fall significantly during adolescence

IQ, the standard measure of intelligence, can increase or fall significantly during our teenage years, according to research funded by the Wellcome Trust, and these changes are associated with changes to the structure of our brains. The findings may have implications for testing and streaming of children during their school years.

Unraveling the mysteries of the maternal brain: Odors influence the response to sounds

Motherhood is associated with the acquisition of a host of new behaviors that must be driven, at least in part, by alterations in brain function. Now, new research published by Cell Press in the October 20 issue of the journal Neuron provides intriguing insight into how neural changes associated with the integration of odors and sounds underlie a mother's ability to recognize and respond to distress calls from her pups.

Adolescents: Sleep more, score higher in math

and Spanish.

Adolescents sleeping more hours score higher on mathematics, while those who sleep between six and ten hours (ie. an average sleep pattern) got significantly better scores, as compared to those with a short (6 hours or less per night) or long (more than 9 hours per night) pattern sleep. Moreover, this difference is more prominent in physical education.

Genetic variant and autoantibodies linked to having a child with autism

A study by researchers at UC Davis has found that pregnant women with a particular gene variation are more likely to produce autoantibodies to the brains of their developing fetuses and that the children of these mothers are at greater risk of later being diagnosed with autism.

Can breastfeeding reduce pain in preterm infants?

Philadelphia, PA, October 19, 2011 – Poorly managed pain in the neonatal intensive care unit has serious short- and long-term consequences, causing physiological and behavioral instability in preterm infants and long-term changes in their pain sensitivity, stress arousal systems, and developing brains. In a study published in the November issue of PAIN®, researchers report that breastfeeding during minor procedures mitigated pain in preterm neonates with mature breastfeeding behaviors.

Number of Facebook friends linked to size of brain regions

Scientists claim to have found a direct link between the number of Facebook 'friends' a person has and the size of particular brain regions. In a study published today, researchers at University College London (UCL) also showed that the more Facebook friends a person has, the more 'real-world' friends they are likely to have.

Young genes correlated with evolution of human brain

Young genes that appeared after the primate branch split off from other mammal species are more likely to be expressed in the developing human brain, a new analysis finds. The correlation suggests that evolutionarily recent genes, which have been largely ignored by scientists thus far, may be responsible for constructing the uniquely powerful human brain. The findings are published October 18 in the online, open access journal PLoS Biology.

Alternating training improves motor learning

Learning from one's mistakes may be better than practicing to perfection, according to a study in the Oct. 19 issue of the Journal of Neuroscience. The study found that forcing people to switch from a normal walking pattern to an unusual one -- and back again -- made them better able to adjust to the unusual pattern the following day. The findings may help improve therapy for people relearning how to walk following stroke or other injury.

Allergies may help in fighting brain tumors

PROVIDENCE, R.I. [Brown University] — A study published online Oct. 18 in the Journal of the National Cancer Institute provides some new but qualified support for the idea that the immune system's response to allergies may reduce the risk of developing deadly brain tumors.

'Generation Squeezed': Today's family staggering under the pressure

Canadian parents today are raising families with less money and time than the Baby Boomer generation even though the country's economy has doubled in size since 1976, says a new study released at the University of Saskatchewan today by Paul Kershaw, a family policy expert from the University of British Columbia.

Whether we know it or not, we can 'see' through 1 eye at a time

Although portions of the visible world come in through one eye only, the brain instantaneously takes all that information and creates a coherent image. As far as we know, we "see" with both eyes at once. Now a new study suggests that the brain may know which eye is receiving information—and can turn around and tell that eye to work even harder.