Multi-tasking May Damage the Brain
We older adults tend to be awed at how young people today can multi-task. They seem to text message on cells phones, watch TV, listen to music, play a video or computer game, carrying on a conversation, and maybe even study their school lessons all simultaneously with apparent ease. Many adults, and even teachers, encourage multi-tasking because they think it is good stimulus for the brain and that learning how to multi-task is a useful skill. But I have already identified many research reports that show multi-tasking to impair formation of memory. Multi-tasking prevents the focused attention and reduction of distractions that are necessary for good memory.
Now there is a research report suggesting that the brain itself may be damaged by multi-tasking. Investigators at Stanford University gave questionnaires to their subjects to identify how much multi-tasking each person did. Nineteen subjects were "heavy multi-taskers" and 22 were "light multi-taskers." Comparison of how these two groups in thinking control tasks revealed that heavy media multi-taskers were more susceptible to interference from irrelevant environmental stimuli and from irrelevant representations in memory.In other words, they were more distractible. Then researchers tested the subjects for ability to filter relevant information from the environment and from their memories and to switch thinking tasks. A typical filtering test, for example, required subjects to detect changes in red triangles on a screen while ignoring blue triangles in the same pictures.
The heavy multi-taskers performed worse, even though their experience and presumed skill at multi-tasking should have made them more effective at these tasks. The heavy multi-taskers believed that they were good at multi-tasking, when in fact they were bad at every task that required multi-tasking.
Tags: Source Ophir, Stanford University, TVRelated posts
Multi-tasking is the Wrong Way to Learn
Today's kids are in to multi-tasking. This is the generation hooked on iPods, IM'ing, video games - not to mention TV! According to a Kaiser Family Foundation study last year, school kids in all grades beyond the second grade committed, on average, more than six hours per day to TV or videos, music, video games, and computers. Almost one-third reported that "most of the time" they did their homework while chatting on the phone, surfing the Web, sending instant messages, watching TV, or listening to music.Kids think that this entertainment while studying helps their learning. It probably does make learning less tedious, but it clearly makes learning less efficient and less effective. Multi-tasking violates everything we know about how memory works. Now we have objective scientific evidence that multi-tasking impairs learning. See the summary at my Web site.
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New Treatment for Post-traumatic Stress Syndrome
If you saw the Nov. 26, 2006 edition of "60 Minutes" on TV, you learned about a promising new treatment, and sometimes cure, for post-traumatic stress disorder (PTSD). Actually, I discussed many of these ideas in my memory-improvement book and posted an explanation of this specific idea months ago on my Web site, and I have now updated it to report that physicians have actually embraced the findings of memory research and shown that treatment with a common blood-pressure drug, propranolol, can have strikingly beneficial results on PTSD.
See the latest update at my Web site. Locate "Medical Issues" on the Contents page and click on the item involving PTSD.
