Even mild head injuries can cause significant abnormalities in brain function that last for several days, which may explain the neurological symptoms experienced by some individuals who have experienced a head injury associated with sports, accidents or combat, according to a study by Virginia Commonwealth University School of Medicine researchers.
psychiatry
Can new diagnostic approaches help assess brain function in unconscious, brain-injured patients?
Disorders of consciousness such as coma or a vegetative state caused by severe brain injury are poorly understood and their diagnosis has relied mainly on patient responses and measures of brain activity. However, new functional and imaging-based diagnostic tests that measure communication and signaling between different brain regions may provide valuable information about the potential for consciousness in patients unable to communicate. These innovative approaches are described and compared in a Review article in the groundbreaking neuroscience journal Brain Connectivity.
Deep brain stimulation may hold promise for mild Alzheimer’s disease
A study on a handful of people with suspected mild Alzheimer’s disease (AD) suggests that a device that sends continuous electrical impulses to specific “memory” regions of the brain appears to increase neuronal activity. Results of the study using deep brain stimulation, a therapy already used in some patients with Parkinson’s disease and depression, may offer hope for at least some with AD, an intractable disease with no cure.
Studies: Memory declines faster in years closest to death
Two new studies published in the April 4 online issue of Neurology, the medical journal of the American Academy of Neurology, suggest that a person’s memory declines at a faster rate in the last two-and-a-half years of life than at any other time after memory problems first begin. The second study shows that keeping mentally fit through board games or reading may be the best way to preserve memory during late life. Both studies were conducted by researchers at Rush University Medical Center.
Seeing Beyond the Visual Cortex
(Medical Xpress) — It’s a chilling thought–losing the sense of sight because of severe injury or damage to the brain’s visual cortex. But, is it possible to train a damaged or injured brain to “see” again after such a catastrophic injury? Yes, according to Tony Ro, a neuroscientist at the City College of New York, who is artificially recreating a condition called blindsight in his lab.