Gait alignment in mobile phone conversations

Murray-Smith, R. , Ramsay, A. , Garrod, S. , Jackson, M. and Musizza, B. (2007) Gait alignment in mobile phone conversations. In: MobileHCI '07 9th International Conference on Human Computer Interaction with Mobile Devices and Services : 9th-12th September 2007, Singapore Polytechnic Auditorium, Singapore. Association for Computing Machinery: New York, NY, USA, pp. 214-221. ISBN 9781595938626

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Conversation partners on mobile phones can align their walking gait without physical proximity or visual feedback. We investigate gait synchronization, measured by accelerometers while users converse via mobile phones. Hilbert transforms are used to infer gait phase angle, and techniques from synchronization theory are used to infer level of alignment. Experimental conditions include the use of vibrotactile feedback to make one conversation partner aware of the other's footsteps. Three modes of interaction are tested: reading a script, discussing a shared image and spontaneous conversation. The vibrotactile feedback loop on its own is sufficient to create synchronization, but there are complex interference effects when users converse spontaneously. Even without vibration crosstalk, synchronisation appeared for long periods in the spontaneous speech condition, indicating that users were aligning their walking behaviour from audible cues alone.

Item Type:Book Sections
Glasgow Author(s) Enlighten ID:Murray-Smith, Professor Roderick and Garrod, Professor Simon and Ramsay, Mr Andrew
Authors: Murray-Smith, R., Ramsay, A., Garrod, S., Jackson, M., and Musizza, B.
Subjects:Q Science > QA Mathematics > QA75 Electronic computers. Computer science
College/School:College of Science and Engineering > School of Computing Science
College of Medical Veterinary and Life Sciences > School of Psychology & Neuroscience
Publisher:Association for Computing Machinery

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
446171Multimodal,Negotiated interaction in mobile scenariosRoderick Murray-SmithEngineering & Physical Sciences Research Council (EPSRC)EP/E042740/1COM - COMPUTING SCIENCE