Sensory Perception & Interaction, Research Group

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.