Now, a computer that can daydream just like humans
Washington: A virtual model of the brain has been created that daydreams just like humans.
Researchers created the computer model based on the dynamics of brain cells and the many connections those cells make with their neighbors and with cells in other brain regions.
They hope the model will help them understand why certain portions of the brain work together when a person daydreams or is mentally idle.
This, in turn, may one day help doctors better diagnose and treat brain injuries.
"We can give our model lesions like those we see in stroke or brain cancer, disabling groups of virtual cells to see how brain function is affected," senior author Maurizio Corbetta, MD, the Norman J. Stupp Professor of Neurology at Washington University School of Medicine in St. Louis, said.
"We can also test ways to push the patterns of activity back to normal," the researcher said.
Scientists first recognized in the late 1990s and early 2000s that the brain stays busy even when it`s not engaged in mental tasks.
Researchers have identified several "resting state" brain networks, which are groups of different brain regions that have activity levels that rise and fall in sync when the brain is at rest.
They have also linked disruptions in networks associated with brain injury and disease to cognitive problems in memory, attention, movement and speech.
The new model was developed to help scientists learn how the brain`s anatomical structure contributes to the creation and maintenance of resting state networks.
The study is published online in The Journal of Neuroscience.
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