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Engineer Creates Biofeedback Pen for Stress Control

Medgadget - Miguel Bruns Alonso, a graduate student at Delft University of Technology in The Netherlands, has developed a pen that detects how much twitching and twirling it's being put through. People under stress tend to move and shake a pen more than someone who is calm. In order to try to get a therapeutic effect out of the pen, Bruns built in counter motion feedback that makes the pen a bit more difficult to move around.

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