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      ADJUST: An automatic EEG artifact detector based on the joint use of spatial and temporal features.

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          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.

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          Author and article information

          Journal
          Psychophysiology
          Psychophysiology
          Wiley
          1540-5958
          0048-5772
          Feb 2011
          : 48
          : 2
          Affiliations
          [1 ] Functional NeuroImaging Laboratory, Center for Mind/Brain Sciences, Department of Cognitive and Education Sciences, University of Trento, Trento, ItalyNILab, Neuroinformatics Laboratory, Fondazione Bruno Kessler, Trento, ItalyDepartment of Information Engineering and Computer Science, University of Trento, Trento, ItalyINSERM, U992, Cognitive Neuroimaging Unit, Gif/Yvette, FranceCEA, DSV/I2BM, NeuroSpin Center, Gif/Yvette, FranceUniversité Paris-Sud, Cognitive Neuroimaging Unit, Gif/Yvette, France.
          Article
          PSYP1061
          10.1111/j.1469-8986.2010.01061.x
          20636297
          ec977def-d188-46ee-a545-cb17825ba2e6
          Copyright © 2010 Society for Psychophysiological Research.
          History

          Automatic classification,EEG artefacts,EEG artifacts,Electroencephalography,Event-related potentials,Independent component analysis,Ongoing brain activity,Thresholding

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