Enabling Control in the Minimally Conscious State in a Single Session with a Three Channel BCI

DH Coyle, Aine Carroll, Jacqueline Stow, Alison McCann, Aneesa Ally, Jacinta McElligott

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The study aimed to detect awareness in a single participant, diagnosed minimally conscious for the past 11 years, using an EEG-based brain-computer interface (BCI), and to determine if real-time feedback enhances our ability to detect awareness in a single session. After 90 trials involving motor imagery (MI) with no feedback hand grasp vs. wiggle toes could be classified with ~82% accuracy with only three EEG channels. In the same session we subsequently provided real-time feedback with two games where the participant was instructed to move a ball and a spaceship, respectively, to reach a target by performing the same MI tasks. ~77% ball and 80% spaceship control was achieved. At the outset of the experiment the participant did not seem attentive or interested however after the feedback runs the participant was noticeably more attentive. Family members in attendance at the experiment commented on the noticeable changes in demeanor of the participant who had provided no overt indication of language comprehension or other cognitive function since diagnosis. The results indicate that real-time feedback should be used in the detection of awareness to inform the completely locked-in of the potential of (BCI) technology as a means of communication (i.e., that it is not just another assessment) and motivate engagement.
LanguageEnglish
Title of host publicationUnknown Host Publication
Number of pages4
Publication statusPublished - Apr 2012
EventThe 1st international DECODER Workshop - Paris, France
Duration: 1 Apr 2012 → …

Workshop

WorkshopThe 1st international DECODER Workshop
Period1/04/12 → …

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Brain-Computer Interfaces
Persistent Vegetative State
Imagery (Psychotherapy)
Electroencephalography
Aptitude
Toes
Hand Strength
Cognition
Language
Hand
Communication
Technology

Cite this

Coyle, DH., Carroll, A., Stow, J., McCann, A., Ally, A., & McElligott, J. (2012). Enabling Control in the Minimally Conscious State in a Single Session with a Three Channel BCI. In Unknown Host Publication
Coyle, DH ; Carroll, Aine ; Stow, Jacqueline ; McCann, Alison ; Ally, Aneesa ; McElligott, Jacinta. / Enabling Control in the Minimally Conscious State in a Single Session with a Three Channel BCI. Unknown Host Publication. 2012.
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abstract = "The study aimed to detect awareness in a single participant, diagnosed minimally conscious for the past 11 years, using an EEG-based brain-computer interface (BCI), and to determine if real-time feedback enhances our ability to detect awareness in a single session. After 90 trials involving motor imagery (MI) with no feedback hand grasp vs. wiggle toes could be classified with ~82{\%} accuracy with only three EEG channels. In the same session we subsequently provided real-time feedback with two games where the participant was instructed to move a ball and a spaceship, respectively, to reach a target by performing the same MI tasks. ~77{\%} ball and 80{\%} spaceship control was achieved. At the outset of the experiment the participant did not seem attentive or interested however after the feedback runs the participant was noticeably more attentive. Family members in attendance at the experiment commented on the noticeable changes in demeanor of the participant who had provided no overt indication of language comprehension or other cognitive function since diagnosis. The results indicate that real-time feedback should be used in the detection of awareness to inform the completely locked-in of the potential of (BCI) technology as a means of communication (i.e., that it is not just another assessment) and motivate engagement.",
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Coyle, DH, Carroll, A, Stow, J, McCann, A, Ally, A & McElligott, J 2012, Enabling Control in the Minimally Conscious State in a Single Session with a Three Channel BCI. in Unknown Host Publication. The 1st international DECODER Workshop, 1/04/12.

Enabling Control in the Minimally Conscious State in a Single Session with a Three Channel BCI. / Coyle, DH; Carroll, Aine; Stow, Jacqueline; McCann, Alison; Ally, Aneesa; McElligott, Jacinta.

Unknown Host Publication. 2012.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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AU - Coyle, DH

AU - Carroll, Aine

AU - Stow, Jacqueline

AU - McCann, Alison

AU - Ally, Aneesa

AU - McElligott, Jacinta

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N2 - The study aimed to detect awareness in a single participant, diagnosed minimally conscious for the past 11 years, using an EEG-based brain-computer interface (BCI), and to determine if real-time feedback enhances our ability to detect awareness in a single session. After 90 trials involving motor imagery (MI) with no feedback hand grasp vs. wiggle toes could be classified with ~82% accuracy with only three EEG channels. In the same session we subsequently provided real-time feedback with two games where the participant was instructed to move a ball and a spaceship, respectively, to reach a target by performing the same MI tasks. ~77% ball and 80% spaceship control was achieved. At the outset of the experiment the participant did not seem attentive or interested however after the feedback runs the participant was noticeably more attentive. Family members in attendance at the experiment commented on the noticeable changes in demeanor of the participant who had provided no overt indication of language comprehension or other cognitive function since diagnosis. The results indicate that real-time feedback should be used in the detection of awareness to inform the completely locked-in of the potential of (BCI) technology as a means of communication (i.e., that it is not just another assessment) and motivate engagement.

AB - The study aimed to detect awareness in a single participant, diagnosed minimally conscious for the past 11 years, using an EEG-based brain-computer interface (BCI), and to determine if real-time feedback enhances our ability to detect awareness in a single session. After 90 trials involving motor imagery (MI) with no feedback hand grasp vs. wiggle toes could be classified with ~82% accuracy with only three EEG channels. In the same session we subsequently provided real-time feedback with two games where the participant was instructed to move a ball and a spaceship, respectively, to reach a target by performing the same MI tasks. ~77% ball and 80% spaceship control was achieved. At the outset of the experiment the participant did not seem attentive or interested however after the feedback runs the participant was noticeably more attentive. Family members in attendance at the experiment commented on the noticeable changes in demeanor of the participant who had provided no overt indication of language comprehension or other cognitive function since diagnosis. The results indicate that real-time feedback should be used in the detection of awareness to inform the completely locked-in of the potential of (BCI) technology as a means of communication (i.e., that it is not just another assessment) and motivate engagement.

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Coyle DH, Carroll A, Stow J, McCann A, Ally A, McElligott J. Enabling Control in the Minimally Conscious State in a Single Session with a Three Channel BCI. In Unknown Host Publication. 2012