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Microstate and Omega Complexity Analyses of the Resting-state Electroencephalography
Published on: June 15, 2018
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Data-Driven EEG Theta and Alpha Components Are Associated with Subjective Experience during Resting State.
Povilas Tarailis1, Frances M De Blasio2, Dovile Simkute1
1Life Sciences Center, Institute of Biosciences, Vilnius University, Sauletekio Ave. 7, LT-10257 Vilnius, Lithuania.
Journal of Personalized Medicine
|June 24, 2022
Summary
This study links brain activity during rest to subjective experiences. Theta brain waves correlate with sleepiness, and alpha waves correlate with comfort, revealing connections between spontaneous thought and intrinsic brain signals.
Area of Science:
- Neuroscience
- Cognitive Science
- Psychophysiology
Background:
- Resting-state electroencephalography (EEG) investigates spontaneous brain activity.
- The link between mind-wandering experiences and individual brain signals remains poorly understood.
Purpose of the Study:
- To explore associations between subjective experiences and data-driven EEG components.
- To investigate the relationship between mind-wandering and intrinsic brain activity.
Main Methods:
- Collected 5-minute resting-state EEG from 226 participants.
- Extracted six data-driven EEG components using frequency principal component analysis (f-PCA).
- Measured subjective experiences using the Amsterdam Resting-State Questionnaire.
Main Results:
- A positive association was found between theta component loadings and sleepiness ratings (r = 0.200).
- A positive correlation existed between alpha component loadings and comfort scores (r = 0.198).
Conclusions:
- Subjective experiences during rest are relevant for understanding intrinsic brain activity.
- EEG component analysis can reveal links between spontaneous thought and neural signals.
