Think you can talk on the phone, send an instant message and read your e-mail all at once? Stanford researchers say even trying may impair your cognitive control.
The primary finding was that "People who are regularly bombarded with several streams of electronic information do not pay attention, control their memory or switch from one job to another as well as those who prefer to complete one task at a time." When people spend months and years trying to multitask, their mental habits follow. Most important, their capacity to filter out distractions and irrelevant items deteriorates. As one of the researchers put it, "They're suckers for irrelevancy." The researchers set up experiments that isolated the ability to ignore things that didn't help subjects complete a problem, and low-multitaskers did well, high-multitaskers poorly.
(Now, if only I could convince my dad that this is true....)
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