For the first time,
the minds of murderers are opening to direct scientific scrutiny
With new gene sequences,
researches can study the action of tens of thousands of genes in an afternoon,
compared with one or two genes a month a few years ago. With brain scanners,
researchers also can measure the blood flow and metabolic energy of thought in
action – and link it to the activity of genes.
Fifty years after
scientists discovered the structure of DNA, researchers have launched a
comprehensive search for the biological roots of human behavior, an effort that
promises to dominate scientific research for decades.
Scientists in five
countries are cataloguing the millions of variations in that human biochemical
text that sets people apart one from another including those that might affect behavior
and emotion.
After a century of
false starts, the effort to dissect human nature is entering a new era, says
Yale university science historical Daniel Kevels. It might be only a matter of
time before genes involved in human behavior can be identified patented and,
perhaps, altered.
Research is revealing
that the working of genes is more complex than scientist had thought that the
brain itself more open to change, and that the effects of everyday experience
are more powerful.
Indeed, growing
evidence suggests that what happens in life controls the activity of many
genes.
The new way of
looking at this is that different experiences turn different genes on and off.
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Behavior and Genes |
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Behavior and Genes |
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