Swedish glass maker Kosta Boda (formerly and perhaps better known as Kosta Glasbruk) recently held an auction with a difference. Bidders were first hooked up to a heart rate monitor and a GSR (galvanic skin response) sensor before being shown a piece of the companys famous glass art for the first time. Both GSR sensors and heart rate monitors comprise part of polygraph lie detector tests. Studies into the accuracy of such tests have shown it is possible to manipulate the results with careful planning, and many have questioned their general accuracy, some going so far as to call polygraphy, and in particular GSR, an inaccurate pseudoscience.
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