Speedier scans reveal new distinctions in resting and active brain
A boost in the speed of brain scans is unveiling new
insights into how brain regions work with each other in cooperative
groups called networks. Shown is the study’s senior researcher, Maurizio Corbetta, MD.
Daydreaming simulated by computer model
Scientists have created a virtual model of the brain that daydreams like humans do. They hope the model will help them understand why
certain portions of the brain work together when a person daydreams or
is mentally idle. Shown is the study’s senior author, Maurizio Corbetta, MD.
Brain’s ‘resting’ network offers powerful new method for early Alzheimer’s diagnosis
Image courtesy of Cindy LustigParts of the brain involved in a “resting network” show large differences between young adults, older adults, and people with Alzheimer’s disease.Researchers tracking the ebb and flow of cognitive function in the human brain have discovered surprising differences in the ability of younger and older adults to shut down a brain network normally active during periods of passive daydreaming. The differences, which are especially pronounced in people with dementia, may provide a clear and powerful new method for diagnosing individuals in the very early stages of Alzheimer’s disease.