An EEG Data Investigation Using Only Artifacts

For decades, it has been reported that the electroencephalogram (EEG) is a positive indicator of mental workload. However, EEG signals are easily affected by artifacts. An artifact mediation approach, called artifact separation, was developed to enable the consumer of the EEG data to decide how to handle artifacts. The current investigation uses only data contaminated by artifacts and discards the artifact free data. This was done to solve a problem associated with data collection. Specifically, in an experiment, EEG electrode leads for T3 and Fz were swapped where they were connected to the signal acquisition hardware. To facilitate analysis of the data, it was essential to determine when the swap occurred. This was accomplished using only EEG data that were contaminated by blinks. Power associated with a blink is lower at site T3 than Fz. The artifact separation technique supported this investigation to determine when the swap occurred.

[1]  Scott M. Galster,et al.  The Electrooculogram and a New Blink Detection Algorithm , 2015 .

[2]  R. Hari,et al.  Magnetic fields produced by eye blinking. , 1985, Electroencephalography and clinical neurophysiology.

[3]  Glenn F. Wilson,et al.  An Analysis of Mental Workload in Pilots During Flight Using Multiple Psychophysiological Measures , 2002 .

[4]  Correction , 2000, Nature.

[5]  P. Berg,et al.  The correction of ocular artifacts: a topographic perspective , 2000, Clinical Neurophysiology.

[6]  F. Matsuo,et al.  Electrical phenomena associated with movements of the eyelid. , 1975, Electroencephalography and clinical neurophysiology.

[7]  Saccade Detection Using Polar Coordinates – a New Algorithm , 2015 .

[8]  Caroline Dussault,et al.  EEG and ECG changes during selected flight sequences. , 2004, Aviation, space, and environmental medicine.

[9]  W BARRY,et al.  INFLUENCE OF EYE LID MOVEMENT UPON ELECTRO-OCULOGRAPHIC RECORDING OF VERTICAL EYE MOVEMENTS. , 1965, Aerospace medicine.

[10]  M. A. Recarte,et al.  Mental Workload and Visual Impairment: Differences between Pupil, Blink, and Subjective Rating , 2008, The Spanish Journal of Psychology.

[11]  Michael E. Smith,et al.  Neurophysiological measures of cognitive workload during human-computer interaction , 2003 .

[12]  Scott M. Galster,et al.  EEG Data Analysis Using Artifact Separation , 2015 .

[13]  R. Ward,et al.  EMG and EOG artifacts in brain computer interface systems: A survey , 2007, Clinical Neurophysiology.

[14]  H. Jasper.  Report of the committee on methods of clinical examination in electroencephalography , 1958 .

[15]  J R Ives,et al.  Clinical applications of spectral analysis and extraction of features from electroencephalograms with slow waves in adult patients. , 1973, Electroencephalography and clinical neurophysiology.

[16]  R. Barry,et al.  Removal of ocular artifact from the EEG: a review , 2000, Neurophysiologie Clinique/Clinical Neurophysiology.

[17]  Barry H. Kantowitz,et al.  Mental Workload , 2020, Encyclopedia of Behavioral Medicine.

[18]  Pierre J. M. Cluitmans,et al.  Clinical evaluation of a method for automatic detection and removal of artifacts in auditory evoked potential monitoring , 1995, Journal of Clinical Monitoring.

[19]  G. Gratton.  Dealing with artifacts: The EOG contamination of the event-related brain potential , 1998 .