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1,000+ results for "Brain"

Regeneration after a stroke requires intact communication channels between brain hemispheres

A study published in Human Brain Mapping found that damaged corpus callosum and impaired interhemispheric communication hinder motor skill recovery in stroke patients. The researchers used imaging methods to show increased activity on both sides of the brain and lower tapping speed in stroke patients compared to healthy controls.

SourceMax-Planck-Gesellschaft·JournalHuman Brain Mapping·DateNov 21, 2011

DNA find sheds light on the human brain

Researchers identified genes responsible for thousands of tiny changes in brain tissue DNA, finding they were active in areas linked to cell renewal. The study provides new insights into how the brain works and may link retrotransposon activity to brain diseases such as Alzheimer's.

SourceUniversity of Edinburgh·JournalNature·DateOct 30, 2011

Protecting the brain when energy runs low

A team of researchers has identified a way for the brain to protect itself when its energy supply is running low. The brain uses a protein called AMPK to reduce the firing frequency of electrical impulses, conserving energy. This discovery could lead to new treatments for patients at risk of stroke.

SourceUniversity of Leeds·JournalProceedings of the National Academy of Sciences·DateOct 17, 2011

In the brain, winning is everywhere

A study published in Neuron found that brain regions beyond the reward centers engage when playing games, suggesting a more widespread role for reward processing in the brain. The research used multi-voxel pattern analysis to identify patterns of brain activity associated with wins and losses.

SourceYale University·JournalNeuron·DateOct 5, 2011

Breaching the blood-brain barrier

Researchers found that adenosine can modulate the entry of large molecules into the brain, establishing a gateway into the blood-brain barrier. They successfully transported large dextrans and antibodies into the brain using an FDA-approved drug, Lexiscan.

First articles in new neuroscience journal -- Brain Connectivity -- debut online

The new journal Brain Connectivity debuts with four compelling articles exploring brain connectivity, functional networks, and neurological disorders. Researchers discuss advances in neuroimaging methods, brain activity reconstruction, and white matter studies, shedding light on the organization and development of brain connections.

The brain as a 'task machine'

Researchers found that the brain area responsible for reading is active in blind individuals who read Braille, challenging the idea of sensory specialization. The study suggests that the brain is a task-oriented system that can adapt to new tasks without prior experience.

SourceCell Press·JournalCurrent Biology·DateFeb 17, 2011

How some brain cells hook up surprises researchers

Researchers discovered that microglia cells are constantly active and create and eliminate synapses, contributing to learning and memory. Microglia appear to be involved in creating or changing the extracellular space around synapses, affecting brain signaling.

SourcePLOS·JournalPLOS Biology·DateNov 2, 2010

Mapping a brain atlas

A team of scientists has created a brain atlas that maps the connections between different parts of the human brain. This atlas will help researchers better understand disorders such as autism and schizophrenia, which are believed to be caused by abnormal connections among different regions within the brain.

The brain speaks

Researchers translated brain signals into words using two grids of 16 microelectrodes implanted beneath the skull but atop the brain. The study showed that the method can distinguish between brain signals for each word, with an accuracy rate of 76-90%, demonstrating proof of concept.

SourceUniversity of Utah·JournalJournal of Neural Engineering·DateSep 6, 2010