Certain chronic viral infections could contribute to subtle cognitive deterioration in apparently healthy older adults, according to a study led by researchers from the University of Pittsburgh and Johns Hopkins University.
In laboratory neuronal cultures, an FDA-approved drug used to treat high blood pressure reduced cell damage often linked to Alzheimer's disease, say researchers at Georgetown University Medical Center and the National Institutes of Health.
Researchers at the University of Pennsylvania's School of Engineering and Applied Science and Perelman School of Medicine are looking for ways to better pinpoint the anatomical source of seizures by looking at networks of electrical activity in the brain just prior to their onset.
A study out today sheds new light on multiple sclerosis, specifically damage in the brain caused by the disease that may explain the slow and continuous cognitive decline that many patients experience. The findings, which appear in the Journal of Neuroscience, show that the brain's immune system is responsible for disrupting communication between nerve cells, even in parts of the brain that are not normally considered to be primary targets of the disease.
Researchers have discovered that a social laboratory rodent, the prairie vole, shows an empathy-based consoling response when other voles are distressed. This is the first time researchers have shown consolation behavior in rodents, and this discovery ends the long-standing belief that detecting the distress of others and acting to relieve that stress is uniquely human.
A team of neurosurgeons and engineers has developed wireless brain sensors that monitor intracranial pressure and temperature and then are absorbed by the body, negating the need for surgery to remove the devices. Such implants, developed by scientists at Washington University School of Medicine in St. Louis and engineers at the University of Illinois at Urbana-Champaign, potentially could be used to monitor patients with traumatic brain injuries.
Analyzing brain scans of 105 children ages 7 to 12, researchers at Washington University in St. Louis have found that key structures in the brain are connected differently in poor children than in kids raised in more affluent settings. In particular, the brain's hippocampus -- a structure key to learning, memory and regulation of stress -- and the amygdala -- which is linked to stress and emotion -- connect to other areas of the brain differently in poor children than in those whose families had higher incomes.
A new study from Indiana University is the first to confirm that animals possess multiple 'working memory' systems, or the ability to remember more information across two categories versus a single category.
Neuroscientists have discovered how the brain compresses memories of say, a trip to the grocery store or an entire episode of a TV show, into just a few seconds. This compression also works forward in time, allowing us to imagine and plan future events quickly. It would be hard to make sense of our experiences or make decisions about the future without this ability. There are also implications for diseases like Alzheimer's and schizophrenia.
Opioids may cause short-term improvement in mood, but long-term use imposes risk of new-onset depression, a Saint Louis University study shows.