Dennis W. Rowe, et al., “Heart Rate Variability: Indicator of User State as an Aid to Human-Computer Interaction,” Proc. CHI 1998, ACM Press (1998), 480-487.
Jenni Anttonen, et al., “Emotions and Heart Rate while Sitting on a Chair,” Proc. CHI2005, ACM Press (2005), 491-499.
Rosalind W. Picard, et al., “Toward Machine Emotional Intelligence: Analysis of Affective Physiological State,” IEEE Transactions on Pattern Analysis and Machine Intelligence, Vol.23, No.10,(2003), 1175-1191.
M. P. Tarvainen, et al., “Analysis of galvanic skin responses with principal components and clustering techniques,” IEEE Transactions on Biomedical Engineering, Vlo.48, no.10,(2001), 1071-1079.
Daniel Chen, et al., “Using Mental Load for Managing Interruptions in Physiologically Attentive User Interfaces,” Ext. Abstracts CHI 2004, ACM Press (2004), 1513-1516.