Positive Technology Journal

Via the Observer

30-year-old artist Christian Nold has created a "emotion mapping" device that allows people to compare their moods with their surroundings. It measures not just major reactions that tend to stick in the memory, but also the degrees of stimulation caused by speaking to a stranger, crossing the road or listening to birdsong. Emotion mapping is the result of the combination of two existing technologies: skin galvanic response sensor, which records the changing sweat levels on the skin as a measure of mental arousal and Global Positioning System. By calling up data from the finger cuffs, emotion mapping displays the user's fluctuating level of arousal, expressed as peaks and troughs along the route. So a walk down a country lane might produce only a mild curve. But dashing across a busy road or being confronted by a mugger might show up as a sudden spike.

And here is the tool and what Christian did with it. Its actually worth seeing - especially the "Google Earth" version of the emotionmap: