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Recognition of Time Pressure via Physiological Sensors: Is the User's Motion a Help or a Hindrance?

Margeritta Wilamowitz--Moellendorff; Christian Müller; Anthony Jameson; Boris Brandherm; Tim Schwartz
In: Proceedings of the Workshop on Adapting the Interaction Style to Affective Factors in conjunction with the User Modeling (UM05). Workshop on Adapting the Interaction Style to Affective Factors, located at UM-05, July 25, Edinburgh, United Kingdom, Pages 43-48, online, 2005.


The recognition of a user's internal states via physiological sensors is sometimes seen as a matter of detecting the direct physiological correlates of the internal states. This type of detection can be problematic when a user is moving around, as is often the case with today's mobile systems. We present a study which illustrates that detection of internal states is sometimes actually easier when the subject is moving: The affective state may be associated with overt behavior that results in detectable changes in the physiological variables.