Pan, M. K. X. J., Chang, J.-S., Himmetoglu, G. H., Moon, A., Hazelton, T. W., MacLean, K. E., and Croft, E. A. (2011). “Now, Where Was I? Physiologically Triggered Book marks for Audio Books.” In Proc. of ACM Conference on Human Factors in Computing Systems (CHI '11), Vancouver, Canada, pp. 1135-1140, May 2011.
This work explores a novel interaction paradigm driven by implicit, low-attention user control, accomplished by moni- toring a user’s physiological state. We have designed and prototyped this interaction for a first use case of bookmark- ing an audio stream, to holistically explore the implicit interaction concept. Here, a user’s galvanic skin conduc- tance (GSR) is monitored for orienting responses (ORs) to external interruptions; our prototype automatically book- marks the media such that the user can attend to the interruption, then resume listening from the point he/she is interrupted. To test this approach’s viability, we addressed questions such as: does GSR exhibit a detectable response to interruptions, and how should the interaction utilize this information? In evaluating this system in a controlled envi- ronment, we found an OR detection accuracy of 84%; users provided subjective feedback on its accuracy and utility.