The Importance of Low-frequency Alpha (8−10 Hz) Waves and Default Mode Network in Behavioral Inhibition
- Authors
- Kim, Yong-Wook; Kim, Sungkean; Jin, Min Jin; Im, Chang-Hwan; Lee, Seung-Hwan
- Issue Date
- Feb-2024
- Publisher
- 대한정신약물학회
- Keywords
- Low alpha; Default mode network; Behavioral inhibition; Functional network
- Citation
- Clinical Psychopharmacology and Neuroscience, v.22, no.1, pp 53 - 66
- Pages
- 14
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- Clinical Psychopharmacology and Neuroscience
- Volume
- 22
- Number
- 1
- Start Page
- 53
- End Page
- 66
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/118694
- DOI
- 10.9758/cpn.22.1035
- ISSN
- 1738-1088
2093-4327
- Abstract
- Objective: Alpha wave of electroencephalography (EEG) is known to be related to behavioral inhibition. Both the alpha wave and default mode network (DMN) are predominantly activated during resting-state. To study the mechanisms of the trait inhibition, this research investigating the relations among alpha wave, DMN and behavioral inhibition in resting-state.
Methods: We explored the relationship among behavioral inhibition, resting-state alpha power, and DMN. Resting-state EEG, behavioral inhibition/behavioral activation scale (BIS/BAS), Barratt impulsivity scale, and no-go accuracy were assessed in 104 healthy individuals. Three groups (i.e., participants with low/middle/high band power) were formed based on the relative power of each total-alpha, low-alpha (LA), and high-alpha band. Source-reconstructed EEG and functional network measures of 25 DMN regions were calculated.
Results: Significant differences and correlations were found based on LA band power alone. The high LA group had significantly greater BIS, clustering coefficient, efficiency, and strength, and significantly lower path length than low/middle LA group. BIS score showed a significant correlation with functional network measures of DMN.
Conclusion: Our study revealed that LA power is related to behavioral inhibition and functional network measures of DMN of LA band appear to represent significant inhibitory function.
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