Awake mental replay of past experiences is essential for making informed choices, suggests a study in rats. Without it, the animals’ memory-based decision-making faltered, say scientists funded by the National Institutes of Health. The researchers blocked learning from, and acting on, past experience by selectively suppressing replay — encoded as split-second bursts of neuronal activity […]
Tag Archives | Cognition
Combining mentally stimulating activities, such as using a computer, with moderate exercise decreases your odds of having memory loss more than computer use or exercise alone, a Mayo Clinic study shows. Included in this report is a video summary of the study results with the lead research.
New research by psychologists at Queen Mary, University of London has revealed that the way we see the world might depend on reflexes in the brain. Writing in the Journal of Vision, Dr Michael Proulx from Queen Mary’s School of Biological and Chemical Sciences, and former student Monique Green, explain how an optical illusion known […]
People with diets high in several vitamins or in omega 3 fatty acids are less likely to have the brain shrinkage associated with Alzheimer’s disease than people whose diets are not high in those nutrients, according to a new study published in the December 28, 2011, online issue of Neurology, the medical journal of the American […]
Both children and the elderly have slower response times when they have to make quick decisions in some settings. But recent research suggests that much of that slower response is a conscious choice to emphasize accuracy over speed. In fact, healthy older people can be trained to respond faster in some decision-making tasks without hurting […]
Babies born at a very low birth weight are more likely to have memory and attention problems when they become adults than babies born at a low to normal weight, according to a study published in the December 6, 2011, print issue of Neurology, the medical journal of the American Academy of Neurology.
A healthy diet and the right amount of exercise are key players in treating and preventing obesity but we still know little about the relationship both factors have with each other. A new study now reveals that an increase in physical activity is linked to an improvement in diet quality. Many questions arise when trying […]
As we get older, our cognitive abilities change, improving when we’re younger and declining as we age. Scientists posit a hierarchical structure within which these abilities are organized. There’s the “lowest” level — measured by specific tests, such as story memory or word memory; the second level, which groups various skills involved in a category […]