Brain entropy, fractal dimensions and predictability A review of complexity measures for EEG in healthy and neuropsychiatric.pdf (7.69 MB)
Brain entropy, fractal dimensions and predictability: a review of complexity measures for EEG in healthy and neuropsychiatric populations
journal contribution
posted on 2023-06-10, 06:09 authored by Zen J Lau, Tam Pham, S H Annabel Chen, Dominique MakowskiDominique MakowskiThere has been an increasing trend towards the use of complexity analysis in quantifying neural activity measured by electroencephalography (EEG) signals. On top of revealing complex neuronal processes of the brain that may not be possible with linear approaches, EEG complexity measures have also demonstrated their potential as biomarkers of psychopathology such as depression and schizophrenia. Unfortunately, the opacity of algorithms and descriptions originating from mathematical concepts have made it difficult to understand what complexity is and how to draw consistent conclusions when applied within psychology and neuropsychiatry research. In this review, we provide an overview and entry-level explanation of existing EEG complexity measures, which can be broadly categorized as measures of predictability and regularity. We then synthesize complexity findings across different areas of psychological science, namely, in consciousness research, mood and anxiety disorders, schizophrenia, neurodevelopmental and neurodegenerative disorders, as well as changes across the lifespan, while addressing some theoretical and methodological issues underlying the discrepancies in the data. Finally, we present important considerations when choosing and interpreting these metrics.
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Publication status
- Published
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- Published version
Journal
European Journal of NeuroscienceISSN
0953-816XPublisher
WileyExternal DOI
Issue
7Volume
56Page range
5047-5069Event location
FranceDepartment affiliated with
- Psychology Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2023-02-06First Open Access (FOA) Date
2023-02-06First Compliant Deposit (FCD) Date
2023-02-04Usage metrics
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