Still haven't figured out who "borrowed" your copy of Twilight Princess?
Soon your Wii may help you narrow down the list of suspects.
Australia's Herald-Sun reports that the Wii Vitality Sensor announced by Nintendo last week at E3 measures some of the same body responses as the polygraph. In particular, the sensor attaches to a user's finger to measure pulse and skin conductance. The newspaper reports:
Skin conductance response is a measurement of fluctuations in the electrical conductivity of skin -- also known as electrodermal response and galvanic skin response.
These fluctuations in conductivity correlate with changes in emotions, such as experiencing fear, anger and desire. That's why polygraphs - generally called lie detectors - measure skin conductivity changes along with other bodily responses including pulse and blood pressure.
Nintendo hinted at potential Wii lie detecting fun at E3, the Herald-Sun notes:
Games using the Wii Vitality Sensor have not been announced yet, but Nintendo said the Vitality Sensor would "provide information to the users about the body's inner world"...
You can imagine games along "truth or dare" lines being developed for fun at home on a Nintendo Wii fitted with a Wii Vitality Sensor. The Wii could use the sensor to assess whether or not the player was telling the truth.
GP: Turning truth detection into a parlor game? I'm not sure whether that's a positive commentary on the capabilities of the new Wii peripheral or a slam on the reliability of the polygraph.