This Week on NeuroScientistNews: 16 March – 20 March
News Mar 20, 2015
Memory consolidation and sleep; new stroke research; brain networks in schizophrenia, and more.
Sleep is thought to contribute to memory consolidation, and observed patterns of neural activity are known to repeat as sharp wave ripples (SPW-Rs) during slow wave sleep. However, it is unknown if these SPW-Rs during sleep actually reflect a replay of spatial information or not. In a recent publication in Nature Neuroscience (de Lavilleon et al., 2015), the authors investigate this by dissociating neural activity from the physical location of mice and demonstrating causally that place cell activity is representative of location.
Scientists at The University of Manchester have made an important new discovery about the brain’s immune system that could lead to potential new treatments for stroke and other related conditions.
Mayo Clinic research finds direct evidence of gadolinium deposition in neuronal tissues following intravenous administration of gadolinium-based contrast agents used in MRI exams. The findings were recently published online in the journal Radiology.
People with a severe form of schizophrenia have major differences in their brain networks compared to others with schizophrenia, bipolar disorder and healthy individuals, a new study from the Centre for Addiction and Mental Health (CAMH) in Toronto, Ontario, Canada shows.
Epilepsy is a very prevalent neurological disorder. Approximately one-third of patients are resistant to currently available therapies. A team of researchers under the guidance of the Institute of Cellular Neurosciences at the University of Bonn has discovered a new cause to explain the development of temporal lobe epilepsy: At an early stage, astrocytes are uncoupled from each other. This results in the extracellular accumulation of potassium ions and neurotransmitters, which cause hyperexcitability of the neurons.
A recent study published in the Canadian Journal on Aging, found that the majority of participants being evaluated for memory and thinking concerns and potential brain disorders had some form of mild to severe hearing loss, but only about 20 per cent of individuals used hearing aids. Among the participants, a quarter of them did not show any signs of memory loss due to a brain disorder.READ MORE
A simple blood test reliably detects signs of brain damage in people on the path to developing Alzheimer’s disease – even before they show signs of confusion and memory loss, according to a new study from Washington University School of Medicine in St. Louis and the German Center for Neurodegenerative Diseases in Germany.READ MORE