Word: mri
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...remember every word of an annoying commercial but not where we last saw the television remote? The answer may lie in a study using magnetic resonance imaging (MRI) to capture what happens in the brain the instant a memory is formed...
...results were less-than-surprising to the scientists. Those who concentrated on the meaning of the words had, on average, a greater memory of what they'd seen. Even more revealing: the MRI scans showed greater activity, as measured by blood oxygenation level, for single items that were remembered as opposed to those that were forgotten...
...left frontal region is the area of the brain behind the temple. The left temporal lobe is the area behind that. Previous neuroimaging studies have identified the parahippocamal cortex, the inner wall of the left temporal region, as particularly important in memory formation. Due to advances in MRI techniques, the activated regions can now be localized with greater precision than previously possible...
...MRI scans to isolate particular regions of the brain responsible for memory encoding has important implications for medicine. An early symptom of Alzheimer's disease, for example, is the inability to learn and remember new experiences...
...compared with base-line readings taken before lift-off, which are already being assembled. Glenn routinely walks around the grounds of NASA's Houston facility with monitors strapped to his wrist and belt. When he returns from space, he will face yet another battery of tests, including an MRI to look for changes in his spinal cord and bone-density tests to look for mineral loss. "All of this," Glenn says, "gives us the potential not only of dealing with the frailties of our already aged population but of helping younger people avoid problems as they...