IEEE JOURNAL OF BIOMEDICAL AND HEALTH INFORMATICS, cilt.24, ss.2550-2558, 2020 (SCI-Expanded)
https://ieeexplore.ieee.org/document/9034192
ABSTRACT
Resting-state brain networks represent the intrinsic state of the brain
during the majority of cognitive and sensorimotor tasks. However, no study has
yet presented concise predictors of task-induced vigilance variability from
spectro-spatial features of the resting-state electroencephalograms (EEG). In
this study, ten healthy volunteers have participated in fixed-sequence,
varying-duration sessions of sustained attention to response task (SART) for
over 100 minutes. A novel and adaptive cumulative vigilance scoring (CVS)
scheme is proposed based on tonic performance and response time. Multiple
linear regression (MLR) using feature relevance analysis has shown that average
CVS, average response time, and variabilities of these scores can be predicted
(p < 0.05) from the resting-state band-power ratios of EEG signals.
Cross-validated neural networks also captured different associations for
narrow-band beta and wide-band gamma and differences between the high- and
low-attention networks in temporal regions. The proposed framework and these
first findings on stable and significant attention predictors from the power
ratios of resting-state EEG can be useful in brain-computer interfacing and
vigilance monitoring applications.