Stroop-interference-related cortical activation patterns. Credit: Image courtesy of University of Tsukuba
Neuroimaging studies, in which the activity of different parts of the brain can be visualized, have provided some clues. Until now, however, no study has directly linked brain activation with both mental and physical performance. They found that the fitter men performed better mentally than the less fit men, by using parts of their brains in the same way as in their youth.
As we age, we use different parts of our brain compared to our younger selves. Eg when young, we mainly use the left side of our prefrontal cortex (PFC) for mental tasks involving short term memory, understanding the meaning of words and the ability to recognize previously encountered events, objects, or people...
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