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Complexity Digest 2003.38 - 13
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22-Sep-2003

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Imaging: Mind Readers, Scientific American
 









Excerpts: Imagine a world you could trust--really trust-- where truth was
transparent and juries, police, locksmiths and gossip columnists were largely
overthrown. Human society would be orderly, boring and as alien as an anthill. 
This is the promise and the threat of a machine that could read minds. The hoary
polygraph has never filled the bill. It measures not thoughts but only the
indirect physiological consequences of thoughts--blood pressure and respiration,
among others--that hint that a subject may be lying. The result, critics charge,
is false positives--an honest answer misjudged as a lie--and false negatives--a
lie misjudged as the truth. The courts have long ruled polygraph findings
inadmissible as evidence. Just last October the National Research Council damned
the device as a "blunt instrument," of little use in ferreting out criminals,
spies and terrorists....continued at Scientific American Digital
Source: Imaging: Mind Readers[
http://www.sciam.com/article.cfm?colID=1&articleID=000E0623-29AC-1F30-9AD380A84189F2D7
], Philip Ross, Scientific American

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