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Comparison of Visual and Vibrotactile Feedback Methods for Seated Posture Guidance
First Quarter 2013 (vol. 6 no. 1)
pp. 13-23
Ying Zheng, Yale University, New Haven
John B. Morrell, Yale University, New Haven
We introduce a novel posture guidance office chair and evaluate the effectiveness of vibrotactile and visual feedback methods for guiding seated postures. For visually dominant office work such as typing on the computer, it is possible that delivering posture feedback visually may overload the visual sense while haptic feedback may be a viable alternative. We performed two experiments to compare vibrotactile and visual feedback—posture compliance and dual-task cognitive workload assessment. In the first experiment, our results showed no statistically significant difference in effectiveness between using vibrotactile and visual feedback to obtain postural compliance to a reference posture. In the second experiment, participants experienced typing performance and response time degradations from both types of feedback. However the differences in performance degradation were not statistically significant between the two feedback methods. We conclude that vibrotactile and visual feedback are similarly effective for guiding quasistatic postures in routine tasks such as seated office work.
Index Terms:
Sensors,Visualization,Back,Vibrations,Haptic interfaces,Accuracy,Calibration,human information processing,Hardware—miscellaneous,haptic I/O,human factors
Ying Zheng, John B. Morrell, "Comparison of Visual and Vibrotactile Feedback Methods for Seated Posture Guidance," IEEE Transactions on Haptics, vol. 6, no. 1, pp. 13-23, First Quarter 2013, doi:10.1109/TOH.2012.3
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