| Literature DB >> 20636297 |
Andrea Mognon1, Jorge Jovicich1, Lorenzo Bruzzone1, Marco Buiatti1.
Abstract
A successful method for removing artifacts from electroencephalogram (EEG) recordings is Independent Component Analysis (ICA), but its implementation remains largely user-dependent. Here, we propose a completely automatic algorithm (ADJUST) that identifies artifacted independent components by combining stereotyped artifact-specific spatial and temporal features. Features were optimized to capture blinks, eye movements, and generic discontinuities on a feature selection dataset. Validation on a totally different EEG dataset shows that (1) ADJUST's classification of independent components largely matches a manual one by experts (agreement on 95.2% of the data variance), and (2) Removal of the artifacted components detected by ADJUST leads to neat reconstruction of visual and auditory event-related potentials from heavily artifacted data. These results demonstrate that ADJUST provides a fast, efficient, and automatic way to use ICA for artifact removal.Keywords: Automatic classification; EEG artefacts; EEG artifacts; Electroencephalography; Event-related potentials; Independent component analysis; Ongoing brain activity; Thresholding
Mesh:
Year: 2011 PMID: 20636297 DOI: 10.1111/j.1469-8986.2010.01061.x
Source DB: PubMed Journal: Psychophysiology ISSN: 0048-5772 Impact factor: 4.016