TAILIEUCHUNG - Your Brain on Google: Patterns of Cerebral Activation during Internet Searching

Objective: Previous research suggests that engaging in mentally stimulating tasks may improve brain health and cognitive abilities. Using computer search engines to find information on the Internet has become a frequent daily activity of people at any age, including middleaged and older adults. As a preliminary means of exploring the possible influence of Internet experience on brain activation patterns, the authors performed functional magnetic resonance imaging (MRI) of the brain in older persons during search engine use and explored whether prior search engine experience was associated with the pattern of brain activation during Internet use. Design: Cross-sectional, exploratory observational study Participants: The authors studied 24 subjects (age, 55–76. | REGULAR RESEARCH ARTICLES Your Brain on Google Patterns of Cerebral Activation during Internet Searching Gary W. Small . Teena D. Moody . Prabha Siddarth Ph D Susan Y. Bookheimer Ph D Objective Previous research suggests that engaging in mentally stimulating tasks may improve brain health and cognitive abilities. Using computer search engines to find information on the Internet has become a frequent daily activity of people at any age including middleaged and older adults. As a preliminary means of exploring the possible influence of Internet experience on brain activation patterns the authors performed functional magnetic resonance imaging MRI of the brain in older persons during search engine use and explored whether prior search engine experience was associated with the pattern of brain activation during Internet use. Design Cross-sectional exploratory observational study Participants The authors studied 24 subjects age 55-76years who were neurologically normal of whom 12 had minimal Internet search engine experience Net Naive group and 12 had more extensive experience Net Savvy group . The mean age and level of education were similar in the two groups. Measurements Patterns of brain activation during functional MRI scanning were determined while subjects performed a novel Internet search task or a control task of reading text on a computer screen formatted to simulate the prototypic layout of a printed book where the content was matched in all respects in comparison with a nontext control task. Results The text reading task activated brain regions controlling language reading memory and visual abilities including left inferior frontal temporal posterior cingulate parietal and occipital regions and both the magnitude and the extent of brain activation were similar in the Net Naive and Net Savvy groups. During the Internet search task the Net Naive group showed an activation pattern similar to that of their text reading task whereas the Net Savvy group .

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