Commonalities of Motor Performance Metrics are Revealed by Predictive Oscillatory EEG Components

M. Tangermann, J. Reis, A. Meinel

2015

Abstract

The power of oscillatory components of the electroencephalogram (EEG) can be predictive for the single-trial performance score of an upcoming task. State-of-the-art machine learning methods allow to extract such predictive subspace components even from noisy multichannel EEG recordings. In the context of an isometric hand motor rehabilitation task, we analyse EEG data of n=20 normally aged subjects. Predictive oscillatory EEG subspaces were derived with a spatial filtering method (source power comodulation, SPoC), and the transfer of these subspaces between five performance metrics but within data of single subjects was investigated. Findings suggest, that on the grand average of 20 subjects, informative SPoC subspace components were extracted, which could be shared between a set of three metrics describing the duration of subtasks and jerk characteristics of the force trajectories. Transfer to any other of the remaining four metrics was not possible above chance level for a metric describing the reaction time and a metric assessing the length of the force trajectory. Furthermore we show, that these transfer results are in line with the structure of cross-correlations between the performance metrics.

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Paper Citation


in Harvard Style

Tangermann M., Reis J. and Meinel A. (2015). Commonalities of Motor Performance Metrics are Revealed by Predictive Oscillatory EEG Components . In Proceedings of the 3rd International Congress on Neurotechnology, Electronics and Informatics - Volume 1: NEUROTECHNIX, ISBN 978-989-758-161-8, pages 32-38. DOI: 10.5220/0005663100320038


in Bibtex Style

@conference{neurotechnix15,
author={M. Tangermann and J. Reis and A. Meinel},
title={Commonalities of Motor Performance Metrics are Revealed by Predictive Oscillatory EEG Components},
booktitle={Proceedings of the 3rd International Congress on Neurotechnology, Electronics and Informatics - Volume 1: NEUROTECHNIX,},
year={2015},
pages={32-38},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0005663100320038},
isbn={978-989-758-161-8},
}


in EndNote Style

TY - CONF
JO - Proceedings of the 3rd International Congress on Neurotechnology, Electronics and Informatics - Volume 1: NEUROTECHNIX,
TI - Commonalities of Motor Performance Metrics are Revealed by Predictive Oscillatory EEG Components
SN - 978-989-758-161-8
AU - Tangermann M.
AU - Reis J.
AU - Meinel A.
PY - 2015
SP - 32
EP - 38
DO - 10.5220/0005663100320038