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First Mind Over Matter, Then Matter Over Mind The human brain poses the profound philosophical question
of how the "spiritual" can control the physical. Specifically
how our immaterial thoughts can directly influence the very material electrical
impulses of our billions of neurons and trillions of interconnections
- how, at its simplest, does my desire to hammer that nail cause the necessary
movement of muscles in the arm? We are, for the most part, so preoccupied with the
activities of our daily life that we have little time to reflect on how
these activities happen. But occasionally something brings the conundrum
into focus, such as the intriguing story in this newspaper last week of
the beneficial effect of positive thinking on the behaviour of the inmates
of Stafford prison. They were, no doubt, typical of the prison population
in general, which contains a disproportionate number of young men who
find great difficulty in concentrating on any task for more than a few
minutes. They would now be labelled as having Attention Deficit Hyperactivity
Disorder, with all its many undesirable adverse psychological and educational
consequences. The precise nature of the defect in ADHD remains elusive,
although, as is well known, the drug Ritalin can influence the balance
of chemical neurotransmitters leading to a marked improvement in symptoms.
But, as we learnt last week, so do a couple of daily mind exercises designed
to train the patterns of thinking. Nearly 90 per cent of those taking
part reported improvement in reading, writing and coordination. Thanks
to modern brain scanners, it is possible to observe that these mind exercises
produce changes in the physical structure of the brain. This is particularly well shown in a study of a dozen
patients affected with compulsive disorders, such as repeated hand-washing,
whose scans showed markedly increased activity in the pathways leading
from the primitive brain stem to the "higher" frontal
cortex. Following 12 weeks of cognitive therapy, during which
they learnt to associate their intrusive thoughts with some other pleasant
image, they were not only much improved, but their brain scans' appearances
had returned to normal. As psychiatrist Jeffrey Schwarz suggested: "We
altered the physical structure of their brain by changing the way they
thought about their thoughts." It makes you think, as it were. |
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