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- เผยแพร่เมื่อ 8 ต.ค. 2022
- A resting state EEG measures brain activity while participants are relaxed.
Electroencephalography, or EEG, is a neuroscience technique that can be used to record brain signals. EEG measures tiny electrical signals on the scalp the originate from groups of active neurons. EEG can be recorded during a task and during rest.
Resting state EEG is typically done for about 5 minutes while participants relax. There are various ways to analyze resting-state EEG data, but the most common ones are a power spectrum analysis and coherence analysis.
A power analasis is used to identify the oscillatory activity in a particular electrode. A distribution is made of the power per frequency, where frequency reflects different speed of neural oscillations. There are different frequency bands: delta, theta, alpha, beta, and gamma frequencies. An increase or decrease in a particular frequency bands in a particular location can indicate a change in brain activity and behavior.
Coherence analyses are performed to investigate the relationships bewteen elecrodes. If activity between electrodes looks similar over time this may indicate that they are connected. However, volume conductance needs to be addressed.
References/resources:
Antonakakis, M., Schrader, S., Aydin, Ü., Khan, A., Gross, J., Zervakis, M., Rampp, S., & Wolters, C. H. (2020). Inter-Subject Variability of Skull Conductivity and Thickness in Calibrated Realistic Head Models. NeuroImage, 223, 117353. doi.org/10.1016/j.neuroimage....
Arns, M., Conners, C. K., & Kraemer, H. C. (2013). A decade of EEG Theta/Beta Ratio Research in ADHD: a meta-analysis. Journal of attention disorders, 17(5), 374-383. doi.org/10.1177/1087054712460087
Babiloni, C., Barry, R. J., Başar, E., Blinowska, K. J., Cichocki, A., Drinkenburg, W., et al. (2020). International Federation of Clinical Neurophysiology (IFCN) - EEG research workgroup: Recommendations on frequency and topographic analysis of resting state EEG rhythms. Part 1: Applications in clinical research studies. Clinical neurophysiology, 131(1), 285-307. doi.org/10.1016/j.clinph.2019...
Heijs, J., Havelaar, R. J., Fiedler, P., van Wezel, R., & Heida, T. (2021). Validation of Soft Multipin Dry EEG Electrodes. Sensors, 21(20), 6827. doi.org/10.3390/s21206827
Wan, L., Huang, H., Schwab, N., Tanner, J., Rajan, A., Lam, N. B., Zaborszky, L., Li, C. R., Price, C. C., & Ding, M. (2019). From eyes-closed to eyes-open: Role of cholinergic projections in EC-to-EO alpha reactivity revealed by combining EEG and MRI. Human brain mapping, 40(2), 566-577. doi.org/10.1002/hbm.24395
Wang, K., Steyn-Ross, M. L., Steyn-Ross, D. A., Wilson, M. T., & Sleigh, J. W. (2014). EEG slow-wave coherence changes in propofol-induced general anesthesia: experiment and theory. Frontiers in systems neuroscience, 8, 215. doi.org/10.3389/fnsys.2014.00215
Narrated by: Miles Wischnewski
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Your videos are amazing!
Thank you so much!
Does listening to music alone but not performing any task to collect brain waves also qualify as a resting-state EEG?
Great question. If there is some background tune I think it could still could as a resting state. But if someone is actively listening (following the lyrics in their head for example) I would argue that that is not a state of rest.