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| Alzheimer's and Ambidexterity?
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Every now and then I check on what's available about lateral dominance on the web. This popped up a couple of weeks ago:
We conducted a case-control study to assess possible factors associated with Alzheimer's disease (AD) with 70 clinically diagnosed AD patients and 140 age- and sex-matched nondemented neighborhood controls in China. Factors significantly associated with AD cases were family history of dementia in first-degree relatives, family history of psychotic disorders in first-degree relatives, and left-handedness/ambidexterity. A history of arthritis showed a significantly negative association with AD
This is from a 1992 article. Abstract at: http://cat.inist.fr/?aModele=afficheN&cpsidt=4376433
I am fascinated with the possible link to ambidexterity. It certainly fits with what I have found in children who are so desperately laterally confused that they can use neither pencil OR keyboard due to scrambled right/left messaging. We already know the corpus collosum in dyslexics is larger -even at birth. I wonder if the back-and-forth rush of information within the brain causes early burn-out of synapses?
Ah, I know it's too simplistic, but it just makes such good sense.
Of course, it seems to be from the ranks of the ambidextrous that GENIUS is also born. But then, when you think about it, there is also a close link between genius, eccentricity, and even mental disorder...
Sometimes I wonder if some of this information has been known for years but kept away from the public because neurological truths may put into question some other long-held assumptions. The notion of "free will", for example...
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Posted by anedu on 2008-05-29 06:57:51 | Rating: | Views: 93
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