Assessment of Cognitive Engagement in Stroke Patients From Single-Trial EEG During Motor Rehabilitation

Title
Assessment of Cognitive Engagement in Stroke Patients From Single-Trial EEG During Motor Rehabilitation
Authors
박완주권규현김다혜김연희김성필김래현
Keywords
Brain?computer interface (BCI); cognitive engagement; electroencephalography (EEG); rehabilitation; stroke
Issue Date
2015-05
Publisher
IEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society
Citation
VOL 23, NO 3, 351-362
Abstract
Abstract—We propose a novel method for monitoring cognitive engagement in stroke patients during motor rehabilitation. Active engagement reflects implicit motivation and can enhance motor recovery. In this study, we used electroencephalography (EEG) to assess cognitive engagement in 11 chronic stroke patients while they executed active and passive motor tasks involving grasping and supination hand movements. We observed that the active motor task induced larger event-related desynchronization (ERD) than the passive task in the bilateral motor cortex and supplementary motor area (SMA). ERD differences between tasks were observed during both initial and post-movement periods . Additionally, differences in beta band activity were larger than differences in mu band activity . EEG data was used to help classify each trial as involving the active or passive motor task. Average classification accuracy was % for grasping movement and % for supination movement. Classification accuracy using a combination of movement and post-movement periods was higher than in other cases . Our results
URI
http://pubs.kist.re.kr/handle/201004/49683
ISSN
15344320
Appears in Collections:
KIST Publication > Article
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