02008nas a2200265 4500008003900000245009800039210006900137520115700206100001601363700001601379700001401395700002101409700001401430700001401444700001501458700001701473700001401490700001801504700001501522700002101537700001501558700001701573700001801590856013401608 2014 d00aInterpreting Psychophysiological States Using Unobtrusive Wearable Sensors in Virtual Reality0 aInterpreting Psychophysiological States Using Unobtrusive Wearab3 a
One of the main challenges in the study of human be- havior is to quantitatively assess the participants? affective states by measuring their psychophysiological signals in ecologically valid conditions. The quality of the acquired data, in fact, is often poor due to artifacts generated by natural interactions such as full body movements and gestures. We created a technology to address this problem. We enhanced the eXperience Induction Machine (XIM), an immersive space we built to conduct experiments on human behavior, with unobtrusive wearable sensors that measure electrocardiogram, breathing rate and electrodermal response. We conducted an empirical validation where participants wearing these sensors were free to move in the XIM space while exposed to a series of visual stimuli taken from the International Affective Picture System (IAPS). Our main result consists in the quan- titative estimation of the arousal range of the affective stimuli through the analysis of participants? psychophysiological states. Taken together, our findings show that the XIM constitutes a novel tool to study human behavior in life-like conditions.
1 aBetella, A.1 aPacheco, D.1 aZucca, R.1 aArsiwalla, X. D.1 aOmedas, P1 aLanata, A1 aMazzei, D.1 aTognetti, A.1 aGreco, A.1 aCarbonaro, N.1 aWagner, J.1 aLingenfelser, F.1 aAndrè, E.1 aDe Rossi, D.1 aVerschure, P. uhttp://www.centropiaggio.unipi.it/publications/interpreting-psychophysiological-states-using-unobtrusive-wearable-sensors-virtual