MS researchers describe a new nonpharmacological approach to reducing cognitive fatigue in MS. Using functional neuroimaging, they showed the prospect of monetary reward stimulates the fronto-striatal network and reduces cognitive fatigue in MS and controls. This is the first study to demonstrate this effect in an MS population.
Our self-control may not be a finite resource that diminishes throughout the day, but we may still experience fatigue while persisting in a single task, according to a study published Sept. 20, 2017 in the open-access journal PLOS ONE by Daniel Randles from the the University of Toronto, Canada and colleagues.
Lack of motivation or boredom with school isn't to blame for squirming by children with Attention Deficit Hyperactivity Disorder. Symptoms such as fidgeting, foot-tapping and chair-swiveling are triggered by cognitively demanding tasks - like school and homework. But movies and video games don't typically require brain strain, so the excessive movement doesn't manifest.
Neuroscientists from Higher School of Economics and Charité University Clinic in Berlin have come up with a new multivariate method for predicting behavioural response to a stimulus using information about the phase of preceding neuronal oscillations recorded with EEG. The method may eventually find practical application in fields such as competitive sports, education and patient treatment. The study's findings are published in the paper 'On optimal spatial filtering for the detection of phase coupling in multivariate neural recordings'.
Researchers from the Universitat Autònoma de Barcelona, in collabroation with the University of Oviedo and the CIBERSAM, have designed a test which in only 20 minutes can examine short-term memory capacity, mental agility and organisational capacities in patients with schizophrenia. The test was published recently in Schizophrenia Research and forms part of a doctoral thesis presented at the Department of Psychiatry of the UAB.
Unsuccessful courtship attempts by males create aversive memories that can reduce their level of enthusiasm for subsequent courtship attempts. Scientists at UC Riverside and colleagues have attempted to understand this behavior at the molecular level. Using the fruit fly as a model organism, the researchers show that the body's hormonal state is critical to the maintenance of such "courtship memories." Two hormones and dopamine, a neurotransmitter, are required in the brain to maintain courtship memories.
Scientific literature in recent years has focused extensively on one genetic risk factor for Alzheimer's disease, the ApoE4 gene variant. A recent study published in PLOS ONE raises flags that scientists should investigate another important player, the TOMM40 gene.
Chronic worriers, take note: Simply writing about your feelings may help you perform an upcoming stressful task more efficiently, finds a Michigan State University study that measured participants' brain activity.
Children under age 5 who underwent minor surgery requiring anesthesia had a 26 percent increased risk of later diagnosis with a mental disorder. However, the timing of the procedure did not affect this risk, according to a new study. Based on these findings, there is little support for delaying a minor procedure to reduce the potential neurodevelopmental risks of anesthesia in children.
Like trick-or-treaters sorting their Halloween candy haul, fox squirrels apparently organize their stashes of nuts by variety, quality and possibly even preference, according to new UC Berkeley research.