Comments on: DACA Research Update https://antipolygraph.org/blog/2008/06/11/daca-research-update/ News about polygraphs, voice stress analyzers, and other purported "lie detectors." Tue, 12 Nov 2013 13:13:48 +0000 hourly 1 http://wordpress.org/?v=3.7.1 By: Jack Kosta https://antipolygraph.org/blog/2008/06/11/daca-research-update/comment-page-1/#comment-160707 Sat, 12 Jul 2008 22:20:47 +0000 https://antipolygraph.org/blog/?p=196#comment-160707 Not all deception detection methods are based on detecting stress responses. For example, the eye scanner mentioned above does not detect stress. It detects specific patterns of eye movements that are related to visual content. If you recognize something you may look at it for an extra 100 ms. There are many ways one can look at differences without using the “stress” construct.

]]> By: Tom Cullen https://antipolygraph.org/blog/2008/06/11/daca-research-update/comment-page-1/#comment-144117 Fri, 13 Jun 2008 04:57:28 +0000 https://antipolygraph.org/blog/?p=196#comment-144117 Improving an existing technology is fine, so long as the underlying theory is valid.

The theory underlying “deception detection” is not valid. There are many reasons, besides deception, why a person might show a stress reaction to a question posed to them. INFERRING deception, due to a measurable stress response, is not the same as DETECTING deception.

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