Research

One in 7 Americans over age 70 has dementia

© Getty Images

© Getty Images

A new analysis suggests that about 3.4 million Americans age 71 and older—one in seven people in that age group—have dementia, and 2.4 million of them have Alzheimer’s disease (AD). The study, supported by the National Institutes of Health (NIH), is the latest in a series of analyses attempting to assess the prevalence of dementia and AD, the most common form of dementia. Published online this week in Neuroepidemiology, the study is the first to estimate rates of dementia and AD using a nationally representative sample of older adults across the United States. [continue reading…]

What’s the brain got to do with education?

 Quite a lot – according to teachers in a recent survey commissioned by The Innovation Unit and carried out by researchers at the University of Bristol. Although current teacher training programmes generally omit the science of how we learn, an overwhelming number of the teachers surveyed felt neuroscience could make an important contribution in key educational areas.  The research was undertaken to inform a series of seminars between educationalists and neuroscientists organised by the Teaching and Learning Research Programme (TLRP) and the Economic and Social Research Council (ESRC). [continue reading…]

A neural network that may generate the human tendency to be optimistic has been identified by researchers at New York University. As humans, we expect to live longer and be more successful than average, and we underestimate our likelihood of getting a divorce or having cancer. The results, reported in the most recent issue of Nature, link the optimism bias to the same brain regions that show irregularities in depression. [continue reading…]