When it comes to focusing on a task amid distractions, some folks more than 60 years old are as mentally sharp as 22-year-olds. Others struggle. Researchers at the Beckman Institute for Advanced Science and Technology at the University of Illinois at Urbana-Champaign have shed some light on why that is.
Reporting in the current issue (September) of the quarterly journal Psychology and Aging, the scientists say there is less white matter in the frontal lobes of those who struggle with focusing. The differences became apparent through the use of functional magnetic resonance (fMRI) imaging of the brains of 40 individuals ranging in age from 19 to 87.
"We found that both performance and brain-activation differences of older good performers and the older poor performers are predicted by changes in brain structure, specifically by the volume of white matter connecting the right and left hemispheres of the frontal lobes," said Arthur F. Kramer, a professor of psychology.
Jim Barlow | EurekAlert!
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