Model-based inference of cognitive processes from unobtrusive gait velocity measurements

Daniel Austin; Todd Leen; Tamara L. Hayes; Jeff Kaye; Holly Jimison; Nora Mattek; Misha Pavel

doi:10.1109/IEMBS.2010.5626276

Model-based inference of cognitive processes from unobtrusive gait velocity measurements

Daniel Austin, Todd Leen, Tamara L. Hayes, Jeff Kaye, Holly Jimison, Nora Mattek, Misha Pavel

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

4 Scopus citations

Abstract

In this paper we describe a preliminary modeling and analysis of a unique data set comprising unobtrusive and continuous measurements of gait velocity in the elder participants' residences. The data have been collected as a part of a longitudinal study aimed at early detection of cognitive decline. We motivate these analyses by first presenting evidence that suggests significant relationship between gait parameters and cognitive functions. We then describe a simple, modelbased approach to the analysis of gait velocity using a weighted correlation function estimates. One of the main challenges is due to the fact that the daily estimates of the gait parameters vary with the number of walks. We illustrate the importance of using weighted as opposed to unweighted estimates on a sample of different houses. The correlation functions appear to capture behavioral differences that can be related to the cognitive functioning of the participants.

Original language	English (US)
Title of host publication	2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10
Pages	5230-5233
Number of pages	4
DOIs	https://doi.org/10.1109/IEMBS.2010.5626276
State	Published - 2010
Event	2010 32nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10 - Buenos Aires, Argentina Duration: Aug 31 2010 → Sep 4 2010

Publication series

Name	2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10

Other

Other	2010 32nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10
Country/Territory	Argentina
City	Buenos Aires
Period	8/31/10 → 9/4/10

ASJC Scopus subject areas

Biomedical Engineering
Computer Vision and Pattern Recognition
Signal Processing
Health Informatics

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10.1109/IEMBS.2010.5626276

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Austin, D., Leen, T., Hayes, T. L., Kaye, J., Jimison, H., Mattek, N., & Pavel, M. (2010). Model-based inference of cognitive processes from unobtrusive gait velocity measurements. In 2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10 (pp. 5230-5233). Article 5626276 (2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10). https://doi.org/10.1109/IEMBS.2010.5626276

Model-based inference of cognitive processes from unobtrusive gait velocity measurements. / Austin, Daniel; Leen, Todd; Hayes, Tamara L. et al.
2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10. 2010. p. 5230-5233 5626276 (2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Austin, D, Leen, T, Hayes, TL, Kaye, J, Jimison, H, Mattek, N & Pavel, M 2010, Model-based inference of cognitive processes from unobtrusive gait velocity measurements. in 2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10., 5626276, 2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10, pp. 5230-5233, 2010 32nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10, Buenos Aires, Argentina, 8/31/10. https://doi.org/10.1109/IEMBS.2010.5626276

Austin D, Leen T, Hayes TL, Kaye J, Jimison H, Mattek N et al. Model-based inference of cognitive processes from unobtrusive gait velocity measurements. In 2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10. 2010. p. 5230-5233. 5626276. (2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10). doi: 10.1109/IEMBS.2010.5626276

Austin, Daniel ; Leen, Todd ; Hayes, Tamara L. et al. / Model-based inference of cognitive processes from unobtrusive gait velocity measurements. 2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10. 2010. pp. 5230-5233 (2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10).

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Model-based inference of cognitive processes from unobtrusive gait velocity measurements

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