Harmonicity of the Movement as a Measure of Apraxic Behaviour in Stroke Survivors

Marta Bieńkiewicz, Philipp Gulde, Georg Goldenberg, Joachim Hermsdörfer


Due to the brain damage caused by stroke, apraxic patients suffer from tool use impairment, and sequencing actions during daily tasks (ADL). Patients fail to use tools in a purposeful manner, often adopting an inappropriate speed of the movement and a disrupted movement path (Laimgruber et al., 2005). The core of this symptom lies in the compromised ability to access the appropriate motor program relevant to the task goal (Hermsdörfer et al., 2006). Although many studies have explored kinematic and spatial features of apraxia both in object and non-object related motor tasks, there is a niche in the research to provide a spatiotemporal biomarker for this behaviour. We propose a novel approach based on dynamical systems framework (Bootsma et al., 2004), looking into the temporal and spatial components of movements. Preliminary data shows that this measure has a potential to encapsulate the disrupted motor behaviour in those patients. We put forward a circular-fit based model to quantify deviations from the regular movement pattern. The application of this study is to create a measure of motor behaviour to be implemented in the autonomous assistance system (CogWatch) that could facilitate performance of ADL both in the clinical and home-based setting.


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Paper Citation

in Harvard Style

Bieńkiewicz M., Gulde P., Goldenberg G. and Hermsdörfer J. (2014). Harmonicity of the Movement as a Measure of Apraxic Behaviour in Stroke Survivors . In Proceedings of the International Conference on Bio-inspired Systems and Signal Processing - Volume 1: BIOSIGNALS, (BIOSTEC 2014) ISBN 978-989-758-011-6, pages 295-300. DOI: 10.5220/0004913802950300

in Bibtex Style

author={Marta Bieńkiewicz and Philipp Gulde and Georg Goldenberg and Joachim Hermsdörfer},
title={Harmonicity of the Movement as a Measure of Apraxic Behaviour in Stroke Survivors},
booktitle={Proceedings of the International Conference on Bio-inspired Systems and Signal Processing - Volume 1: BIOSIGNALS, (BIOSTEC 2014)},

in EndNote Style

JO - Proceedings of the International Conference on Bio-inspired Systems and Signal Processing - Volume 1: BIOSIGNALS, (BIOSTEC 2014)
TI - Harmonicity of the Movement as a Measure of Apraxic Behaviour in Stroke Survivors
SN - 978-989-758-011-6
AU - Bieńkiewicz M.
AU - Gulde P.
AU - Goldenberg G.
AU - Hermsdörfer J.
PY - 2014
SP - 295
EP - 300
DO - 10.5220/0004913802950300