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Infrastructureless pedestrian navigation to assess the response of Alzheimer's patients to visual cues

McCarthy, ID; Yong, K; Suzuki, T; Yang, B; Holloway, C; Tyler, N; Carton, A; (2015) Infrastructureless pedestrian navigation to assess the response of Alzheimer's patients to visual cues. In: Proceedings of IET International Conference on Technologies for Active and Assisted Living (TechAAL). IEEE: London, United Kingdom. Green open access

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Abstract

The aim of the study was to understand how patients with dementia were able to navigate in a domestic environment, and whether the presence of visual cues could assist in route finding. A simulated domestic environment was created in the Pedestrian Accessibility and Movement Environment Laboratory (PAMELA) comprising three different types of corridors and an open room with three doors. Three groups of subjects were studied: i) posterior cortical atrophy; ii) typical Alzheimer’s disease; iii) age- and gender matched controls. Foot-mounted inertial measurement units (IMUs) were used to measure accelerations in 3D. Data from the sensors was transmitted wirelessly to a laptop computer. Local accelerations were converted to global accelerations, and double integration was performed to calculate displacement; corrections for sensor drift were performed during this process.

Type: Proceedings paper
Title: Infrastructureless pedestrian navigation to assess the response of Alzheimer's patients to visual cues
Event: IET International Conference on Technologies for Active and Assisted Living (TechAAL)
Location: Kingston, UK
ISBN-13: 9781785611599
Open access status: An open access version is available from UCL Discovery
DOI: 10.1049/ic.2015.0134
Publisher version: http://dx.doi.org/10.1049/ic.2015.0134
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Posterior cortical atrophy; Alzheimer’s disease; inertial measurement units; way finding; visual cues.
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > UCL Queen Square Institute of Neurology
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > UCL Queen Square Institute of Neurology > Neurodegenerative Diseases
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Civil, Environ and Geomatic Eng
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Computer Science
URI: https://discovery.ucl.ac.uk/id/eprint/1518073
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