Detection of Error Correlates in the Motor Cortex in a Long Term Clinical Trial of ECoG based Brain Computer Interface

Vincent Rouanne, Maciej Åšliwowski, Maciej Åšliwowski, Thomas Costecalde, Alim Benabid, Alim Benabid, Tetiana Aksenova

Abstract

Error correlates are thought to be promising for BCIs as a way to perform error correction or prevention, or to label data in order to perform online adaptation of BCIs’ control models. Current state-of-the-art BCIs are motor-imagery-based invasive BCIs and thus have no access to neural data apart from sensory-motor cortices. We investigated at the single trial level the presence and detectability of error correlates in the primary motor cortex during observation or motor imagery (MI) control of a BCI with two discrete classes by a tetraplegic user. We show that error correlates can be detected using a broad range of classifiers, namely Support Vector Machine (SVM), logistic regression, N-way Partial Least Squares (NPLS), Multilayer Perceptron (MLP) and Convolutional Neural Network (CNN) with respective mean AUC of the ROC curve of 0.645, 0.662, 0.642, 0.680 and 0.630 in the observation condition, and 0.623, 0.605, 0.603, 0.626 and 0.580 in the MI-control condition. We also suggest that these error correlates are stable in time. These findings suggest that error correlates could be used in clinical trials using invasive motor-imagery-based BCIs for error correction or prevention.

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Paper Citation


in Harvard Style

Rouanne V., Åšliwowski M., Costecalde T., Benabid A. and Aksenova T. (2021). Detection of Error Correlates in the Motor Cortex in a Long Term Clinical Trial of ECoG based Brain Computer Interface.In Proceedings of the 14th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 2: BIOSIGNALS, ISBN 978-989-758-490-9, pages 26-34. DOI: 10.5220/0010227800260034


in Bibtex Style

@conference{biosignals21,
author={Vincent Rouanne and Maciej Åšliwowski and Thomas Costecalde and Alim Benabid and Tetiana Aksenova},
title={Detection of Error Correlates in the Motor Cortex in a Long Term Clinical Trial of ECoG based Brain Computer Interface},
booktitle={Proceedings of the 14th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 2: BIOSIGNALS,},
year={2021},
pages={26-34},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0010227800260034},
isbn={978-989-758-490-9},
}


in EndNote Style

TY - CONF

JO - Proceedings of the 14th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 2: BIOSIGNALS,
TI - Detection of Error Correlates in the Motor Cortex in a Long Term Clinical Trial of ECoG based Brain Computer Interface
SN - 978-989-758-490-9
AU - Rouanne V.
AU - Åšliwowski M.
AU - Costecalde T.
AU - Benabid A.
AU - Aksenova T.
PY - 2021
SP - 26
EP - 34
DO - 10.5220/0010227800260034