....Differences in brain activity, as measured in terms of quantitative results of electroencephalographic (EEG) studies and assessments of neuropsychological functions such as attention, memory, executive function and personality, were examined. Among the results: Frequent users scored higher on ratings as extroverts and were found to be less open-minded.
The study also found that frequent users are better able than others to focus their attention. That result could be due to a learning effect that comes from making phone calls in busy places where people have to focus on a phone call while filtering out background noise and other distractions, according to the researchers.
Despite this improved focus and the findings about personality, the frequent users showed more instances of slowed activity as measured by delta and theta EEG power, as well as a slowdown in a measurement called alpha peak frequency....
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