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10 Nov 09
Christophe DeschampsRechercher sur internet améliore les capacités du cerveau à tous les âges.
aaaliens RechercherInformation Etude_ SciencesCognitives Science_
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Research has shown that mental stimulation similar to that which occurs in individuals who frequently use the Internet may affect the efficiency of cognitive processing and alter the way the brain encodes new information.
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"We found that for older people with minimal experience, performing Internet searches for even a relatively short period of time can change brain activity patterns and enhance function,"
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The first scan of participants with little Internet experience demonstrated brain activity in regions controlling language, reading, memory and visual abilities, which are located in the frontal, temporal, parietal, visual and posterior cingulate regions, researchers said. The second brain scan of these participants, conducted after the practice Internet searches at home, demonstrated activation of these same regions, as well as triggering of the middle frontal gyrus and inferior frontal gyrus – areas of the brain known to be important in working memory and decision-making.
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"The results suggest that searching online may be a simple form of brain exercise that might be employed to enhance cognition in older adults,"
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When performing an Internet search, the ability to hold important information in working memory and to extract the important points from competing graphics and words is essential,
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Additional studies may address the impact of the Internet on younger individuals and help identify aspects of online searching that generate the greatest levels of brain activation.
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27 Oct 09
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21 Oct 09
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20 Oct 09
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