The Truth device, by Sean Montgomery:
By measuring changes in skin resistance (similar to a lie detector test) this device can help the wearer know when he is getting closer to the truth. The baseline or “average truth” is displayed via an RGB spectrum on the side leds. When instantaneous skin conductance exceeds the average, letters of the word truth light up to display the extent of the “relative truth”.
Hey, why emphasize the negative by making a “lie” detector anyway?
Also, check out one of Sean’s earlier projects – the Produce Consume Robot:
Truth device and more – Link
Lego Lie Detector –Link