TOWARDS ANSWERING QUESTIONS IN DISORDERS OF CONSCIOUSNESS AND LOCKED-IN SYDROME WITH A SMR-BCI

Natalie Dayan, Alain Desire Bigirimana, Alison McCann, Jacqueline Stow, Jacinta McElligott, Damien Coyle

Research output: Contribution to conferencePaper

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Abstract

Sensorimotor rhythm-based brain-computer interfaces (SMR-BCI) may enable patients with prolonged disorders of consciousness (PDoC) or severe physical impairment to learn to intentionally modulate motor cortical neural oscillations. SMR-BCI could mitigate the need for movement-dependent behavioural responses, hence providing diagnostic information and/or communication strategies. Here, an SMR-BCI was evaluated in a three-staged protocol for PDoC. Stage I assessed awareness and capacity to modulate brain activity intentionally. Stage II facilitated SMR-BCI learning via stereo-auditory feedback training. Stage III tested use of SMR-BCI to answer closed categorized yes/no questions. Out of 14 patients with PDoC and locked in syndrome (LIS), eight patients showed capacity to modulate brain activity during stage I and thus participated in stage II. For practical reasons only five of these patients completed stage III. Two able-bodied participants were enrolled for benchmarking. Five of the eight participants performed significantly greater than chance level in 50-100% of runs (p<0.05). Average top run performance accuracy correlated with diagnoses category. Participants across the PDoC spectrum showed capacity to engage with SMR-BCI to answer closed questions.
Original languageEnglish
Number of pages7
Publication statusPublished - 20 Sep 2019
EventThe 8th Graz BCI Conference, 2019 - Institute of Neural Engineering, Graz University of Technology, Graz, Austria
Duration: 16 Sep 201920 Sep 2023
https://www.tugraz.at/institute/ine/graz-bci-conferences/8th-graz-bci-conference-2019/

Conference

ConferenceThe 8th Graz BCI Conference, 2019
CountryAustria
CityGraz
Period16/09/1920/09/23
Internet address

Fingerprint

Consciousness Disorders
Brain-Computer Interfaces
Brain computer interface
Brain
Benchmarking
Quadriplegia
Communication
Learning
Feedback

Keywords

  • EEG, BCI, Neurofeedback

Cite this

Dayan, N., Bigirimana, A. D., McCann, A., Stow, J., McElligott, J., & Coyle, D. (2019). TOWARDS ANSWERING QUESTIONS IN DISORDERS OF CONSCIOUSNESS AND LOCKED-IN SYDROME WITH A SMR-BCI. Paper presented at The 8th Graz BCI Conference, 2019, Graz, Austria.
Dayan, Natalie ; Bigirimana, Alain Desire ; McCann, Alison ; Stow, Jacqueline ; McElligott, Jacinta ; Coyle, Damien. / TOWARDS ANSWERING QUESTIONS IN DISORDERS OF CONSCIOUSNESS AND LOCKED-IN SYDROME WITH A SMR-BCI. Paper presented at The 8th Graz BCI Conference, 2019, Graz, Austria.7 p.
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abstract = "Sensorimotor rhythm-based brain-computer interfaces (SMR-BCI) may enable patients with prolonged disorders of consciousness (PDoC) or severe physical impairment to learn to intentionally modulate motor cortical neural oscillations. SMR-BCI could mitigate the need for movement-dependent behavioural responses, hence providing diagnostic information and/or communication strategies. Here, an SMR-BCI was evaluated in a three-staged protocol for PDoC. Stage I assessed awareness and capacity to modulate brain activity intentionally. Stage II facilitated SMR-BCI learning via stereo-auditory feedback training. Stage III tested use of SMR-BCI to answer closed categorized yes/no questions. Out of 14 patients with PDoC and locked in syndrome (LIS), eight patients showed capacity to modulate brain activity during stage I and thus participated in stage II. For practical reasons only five of these patients completed stage III. Two able-bodied participants were enrolled for benchmarking. Five of the eight participants performed significantly greater than chance level in 50-100{\%} of runs (p<0.05). Average top run performance accuracy correlated with diagnoses category. Participants across the PDoC spectrum showed capacity to engage with SMR-BCI to answer closed questions.",
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author = "Natalie Dayan and Bigirimana, {Alain Desire} and Alison McCann and Jacqueline Stow and Jacinta McElligott and Damien Coyle",
year = "2019",
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language = "English",
note = "The 8th Graz BCI Conference, 2019 ; Conference date: 16-09-2019 Through 20-09-2023",
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Dayan, N, Bigirimana, AD, McCann, A, Stow, J, McElligott, J & Coyle, D 2019, 'TOWARDS ANSWERING QUESTIONS IN DISORDERS OF CONSCIOUSNESS AND LOCKED-IN SYDROME WITH A SMR-BCI', Paper presented at The 8th Graz BCI Conference, 2019, Graz, Austria, 16/09/19 - 20/09/23.

TOWARDS ANSWERING QUESTIONS IN DISORDERS OF CONSCIOUSNESS AND LOCKED-IN SYDROME WITH A SMR-BCI. / Dayan, Natalie; Bigirimana, Alain Desire; McCann, Alison; Stow, Jacqueline; McElligott, Jacinta; Coyle, Damien.

2019. Paper presented at The 8th Graz BCI Conference, 2019, Graz, Austria.

Research output: Contribution to conferencePaper

TY - CONF

T1 - TOWARDS ANSWERING QUESTIONS IN DISORDERS OF CONSCIOUSNESS AND LOCKED-IN SYDROME WITH A SMR-BCI

AU - Dayan, Natalie

AU - Bigirimana, Alain Desire

AU - McCann, Alison

AU - Stow, Jacqueline

AU - McElligott, Jacinta

AU - Coyle, Damien

PY - 2019/9/20

Y1 - 2019/9/20

N2 - Sensorimotor rhythm-based brain-computer interfaces (SMR-BCI) may enable patients with prolonged disorders of consciousness (PDoC) or severe physical impairment to learn to intentionally modulate motor cortical neural oscillations. SMR-BCI could mitigate the need for movement-dependent behavioural responses, hence providing diagnostic information and/or communication strategies. Here, an SMR-BCI was evaluated in a three-staged protocol for PDoC. Stage I assessed awareness and capacity to modulate brain activity intentionally. Stage II facilitated SMR-BCI learning via stereo-auditory feedback training. Stage III tested use of SMR-BCI to answer closed categorized yes/no questions. Out of 14 patients with PDoC and locked in syndrome (LIS), eight patients showed capacity to modulate brain activity during stage I and thus participated in stage II. For practical reasons only five of these patients completed stage III. Two able-bodied participants were enrolled for benchmarking. Five of the eight participants performed significantly greater than chance level in 50-100% of runs (p<0.05). Average top run performance accuracy correlated with diagnoses category. Participants across the PDoC spectrum showed capacity to engage with SMR-BCI to answer closed questions.

AB - Sensorimotor rhythm-based brain-computer interfaces (SMR-BCI) may enable patients with prolonged disorders of consciousness (PDoC) or severe physical impairment to learn to intentionally modulate motor cortical neural oscillations. SMR-BCI could mitigate the need for movement-dependent behavioural responses, hence providing diagnostic information and/or communication strategies. Here, an SMR-BCI was evaluated in a three-staged protocol for PDoC. Stage I assessed awareness and capacity to modulate brain activity intentionally. Stage II facilitated SMR-BCI learning via stereo-auditory feedback training. Stage III tested use of SMR-BCI to answer closed categorized yes/no questions. Out of 14 patients with PDoC and locked in syndrome (LIS), eight patients showed capacity to modulate brain activity during stage I and thus participated in stage II. For practical reasons only five of these patients completed stage III. Two able-bodied participants were enrolled for benchmarking. Five of the eight participants performed significantly greater than chance level in 50-100% of runs (p<0.05). Average top run performance accuracy correlated with diagnoses category. Participants across the PDoC spectrum showed capacity to engage with SMR-BCI to answer closed questions.

KW - EEG, BCI, Neurofeedback

M3 - Paper

ER -

Dayan N, Bigirimana AD, McCann A, Stow J, McElligott J, Coyle D. TOWARDS ANSWERING QUESTIONS IN DISORDERS OF CONSCIOUSNESS AND LOCKED-IN SYDROME WITH A SMR-BCI. 2019. Paper presented at The 8th Graz BCI Conference, 2019, Graz, Austria.