Tactile event-related potential (ERP) are rarely used as input signal to control brain-computer-interfaces (BCI) due to their low accuracy and speed (information transfer rate, ITR). Age-related loss of tactile sensibility might further decrease their viability for the target population of BCI. In this study we investigated whether training improves tactile ERP-BCI performance within a virtual wheelchair navigation task. Elderly subjects participated in 5 sessions and tactors were placed at legs, abdomen and back. Mean accuracy and ITR increased from 88.43%/4.5bitsmin-1 in the 1st to 92.56%/4.98bitsmin-1 in the last session. The mean P300 amplitude increased from 5.46μV to 9.22μV. In an optional task participants achieved an accuracy of 95,56% and a mean ITR of 20,73bitsmin-1 which is the highest ever achieved with tactile stimulation. Our sample of elderly people further contributed to the external validity of our results.
%0 Journal Article
%1 herweg_wheelchair_2016
%A Herweg, Andreas
%A Gutzeit, Julian
%A Kleih, Sonja
%A Kübler, Andrea
%D 2016
%J Biological psychology
%K BCI Brain-Computer-Interface EEG ERP myown
%P 117--124
%T Wheelchair control by elderly participants in a virtual environment with a brain-computer interface (BCI) and tactile stimulation
%U https://www.sciencedirect.com/science/article/pii/S0301051116302976
%V 121
%X Tactile event-related potential (ERP) are rarely used as input signal to control brain-computer-interfaces (BCI) due to their low accuracy and speed (information transfer rate, ITR). Age-related loss of tactile sensibility might further decrease their viability for the target population of BCI. In this study we investigated whether training improves tactile ERP-BCI performance within a virtual wheelchair navigation task. Elderly subjects participated in 5 sessions and tactors were placed at legs, abdomen and back. Mean accuracy and ITR increased from 88.43%/4.5bitsmin-1 in the 1st to 92.56%/4.98bitsmin-1 in the last session. The mean P300 amplitude increased from 5.46μV to 9.22μV. In an optional task participants achieved an accuracy of 95,56% and a mean ITR of 20,73bitsmin-1 which is the highest ever achieved with tactile stimulation. Our sample of elderly people further contributed to the external validity of our results.
@article{herweg_wheelchair_2016,
abstract = {Tactile event-related potential (ERP) are rarely used as input signal to control brain-computer-interfaces (BCI) due to their low accuracy and speed (information transfer rate, ITR). Age-related loss of tactile sensibility might further decrease their viability for the target population of BCI. In this study we investigated whether training improves tactile ERP-BCI performance within a virtual wheelchair navigation task. Elderly subjects participated in 5 sessions and tactors were placed at legs, abdomen and back. Mean accuracy and ITR increased from 88.43%/4.5bitsmin-1 in the 1st to 92.56%/4.98bitsmin-1 in the last session. The mean P300 amplitude increased from 5.46μV to 9.22μV. In an optional task participants achieved an accuracy of 95,56% and a mean ITR of 20,73bitsmin-1 which is the highest ever achieved with tactile stimulation. Our sample of elderly people further contributed to the external validity of our results. },
added-at = {2024-02-13T16:09:57.000+0100},
author = {Herweg, Andreas and Gutzeit, Julian and Kleih, Sonja and Kübler, Andrea},
biburl = {https://www.bibsonomy.org/bibtex/24d108d2eb23cfd12bc6b031853301125/julsten},
file = {Herweg et al_2016_Wheelchair control.pdf:G\:\\Meine Ablage\\Literatur\\Zotero\\Herweg et al_2016_Wheelchair control.pdf:application/pdf},
interhash = {b25a15c44dbeaa323ba4e6c271f62a82},
intrahash = {4d108d2eb23cfd12bc6b031853301125},
journal = {Biological psychology},
keywords = {BCI Brain-Computer-Interface EEG ERP myown},
note = {Publisher: Elsevier},
pages = {117--124},
timestamp = {2024-02-13T16:40:38.000+0100},
title = {Wheelchair control by elderly participants in a virtual environment with a brain-computer interface (BCI) and tactile stimulation},
url = {https://www.sciencedirect.com/science/article/pii/S0301051116302976},
urldate = {2024-01-25},
volume = 121,
year = 2016
}