NDLI: Assessing and conceptualizing frontal EEG asymmetry: An updated primer on recording, processing, analyzing, and interpreting frontal alpha asymmetry

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Assessing and conceptualizing frontal EEG asymmetry: An updated primer on recording, processing, analyzing, and interpreting frontal alpha asymmetry

Content Provider	Scilit
Author	Smith, Ezra E. Reznik, Samantha J. Stewart, Jennifer L. Allen, John J. B.
Copyright Year	2017
Description	Journal: International Journal of Psychophysiology Frontal electroencephalographic (EEG) alpha asymmetry is widely researched in studies of emotion, motivation, and psychopathology, yet it is a metric that has been quantified and analyzed using diverse procedures, and diversity in procedures muddles cross-study interpretation. The aim of this article is to provide an updated tutorial for EEG alpha asymmetry recording, processing, analysis, and interpretation, with an eye towards improving consistency of results across studies. First, a brief background in alpha asymmetry findings is provided. Then, some guidelines for recording, processing, and analyzing alpha asymmetry are presented with an emphasis on the creation of asymmetry scores, referencing choices, and artifact removal. Processing steps are explained in detail, and references to MATLAB-based toolboxes that are helpful for creating and investigating alpha asymmetry are noted. Then, conceptual challenges and interpretative issues are reviewed, including a discussion of alpha asymmetry as a mediator/moderator of emotion and psychopathology. Finally, the effects of two automated component-based artifact correction algorithms-MARA and ADJUST-on frontal alpha asymmetry are evaluated.
Related Links	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6449497/pdf
ISSN	01678760
e-ISSN	18727697
DOI	10.1016/j.ijpsycho.2016.11.005
Journal	International Journal of Psychophysiology
Volume Number	111
Language	English
Publisher	Elsevier BV
Publisher Date	2017-01-01
Access Restriction	Open
Subject Keyword	Journal: International Journal of Psychophysiology Biological Psychology Frontal Eeg Asymmetry Ica Artifact Correction Signal Processing Statistical Models
Content Type	Text
Resource Type	Article
Subject	Neuroscience Physiology (medical) Neuropsychology and Physiological Psychology

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