News tagged with gray matter

A 3-D light switch for the brain

A new tool for neuroscientists delivers a thousand pinpricks of light to a chunk of gray matter smaller than a sugar cube. The new fiber-optic device, created by biologists and engineers at the Massachusetts ...

Nov 19, 2012
4.6 / 5 (8) 0 | with audio podcast

Are brains shrinking to make us smarter?

Human brains have shrunk over the past 30,000 years, puzzling scientists who argue it is not a sign we are growing dumber but that evolution is making the key motor leaner and more efficient.

Feb 06, 2011
4.1 / 5 (35) 56

The real 'mommy brain': New mothers grew

Motherhood may actually cause the brain to grow, not turn it into mush, as some have claimed. Exploratory research published by the American Psychological Association found that the brains of new mothers bulked up in areas ...

Oct 20, 2010
4.4 / 5 (5) 1

Walk much? It may protect your memory down the road

New research suggests that walking at least six miles per week may protect brain size and in turn, preserve memory in old age, according to a study published in the October 13, 2010, online issue of Neurology, the medica ...

Oct 13, 2010
5 / 5 (3) 0

Brain scans may help guide career choice

General aptitude tests and specific mental ability tests are important tools for vocational guidance. Researchers are now asking whether performance on such tests is based on differences in brain structure, and if so, can ...

Jul 21, 2010
4.2 / 5 (9) 0 | with audio podcast