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IEEE Brain: Motor Imagery BCI for Cognitive Profiling in Disorders of Consciousness and Prospects for Direct Speech BCI with Imagined-speech
Presented by Prof Damien Coyle
Intelligent Systems Research Centre,
Ulster University

This webinar will cover two current hot topics in EEG-based brain-computer interface research and research ongoing at the Intelligent Systems Research Centre.

Part 1 will focus on assessment of patients with prolonged disorder of consciousness(PDoC). Motor imagery brain-computer interface (MI-BCI) may facilitate willful modulation of sensorimotor oscillations in patients with PDoC, enabling assessment of awareness and question answering by imagining movement and thus, potentially, movement-independent neuropsychological assessment. We evaluated this potential with a cohort of PDoC patients (n=24). Whilst results revealed patients across the PDoC spectrum have capacity to learn to modulate sensorimotor rhythms and respond to closed questions, differences in patient cognition are more likely to be revealed after extended training with feedback and more intensive question-and-answer sessions.

Part 2 will focus on direct speech BCIs. Several recent studies have harnessed overt speech to examine linguistic communication through neural signals. While imagined speech is theholy grail modality for a BCI based on language, systematic study of imagined speech has been relatively sparse. The phenomenology of imagined speech, its relationship to overt speech, and the effect of different stimuli on efforts to elicit and label its neural correlations to enable algorithms to learn to detect and classify it, are currently not well understood. Employing the first picture-naming paradigm in speech BCI research, this talk will show that effects of stimuli/cues on speech decoding from EEG are highly significant, whilst linguistic properties of semantics and syntax are not and that overt speech is easier to decode from EEG than imagined speech.

Mar 18, 2021 01:00 PM in Eastern Time (US and Canada)

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Damien Coyle
Professor of Neurotechnology @Intelligent Systems Research Centre, Ulster University
Damien Coyle, Professor of Neurotechnology, is Director of the Intelligent Systems Research Centre at Ulster University’s Magee Campus. He has published over 150 research papers in areas such as computational intelligence/AI, bio-signal processing, computational neuroscience, neuroimaging, neurotechnology and brain-computer interface (BCI) applications and has won a number of prestigious international awards for his R&D including the 2008 IEEE Computational Intelligence Society (CIS) Outstanding Doctoral Dissertation Award, the 2011 International Neural Network Society (INNS) Young Investigator of the Year Award and the IET and E&T Innovation of the Year Award 2018. He was an Ulster University Distinguished Research Fellow in 2011, a Royal Academy of Engineering/The Leverhulme Trust Senior Research Fellow in 2013, a Royal Academy of Engineering Enterprise Fellow in 2016-2017 and is currently a UKRI Turing AI Fellow 2021-2025.