Three-year reliability of MEG resting-state oscillatory power
| Autor: | Lauren R. Ott, Samantha H. Penhale, Brandon J. Lew, Tony W. Wilson, Emily E. Fitzgerald |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Adult
Male Oscillations Adolescent Frequency band Rest Cognitive Neuroscience Posterior parietal cortex Alpha (ethology) Neurosciences. Biological psychiatry. Neuropsychiatry Signal-To-Noise Ratio Article Test-retest Young Adult Nuclear magnetic resonance Parietal Lobe Cortex (anatomy) medicine Humans Beta (finance) Reliability (statistics) Physics Brain Mapping medicine.diagnostic_test Resting state fMRI ICC Reproducibility of Results Magnetoencephalography Signal Processing Computer-Assisted Middle Aged Brain Waves Magnetic Resonance Imaging medicine.anatomical_structure Neurology Female Nerve Net Stability Resting-State RC321-571 |
| Zdroj: | NeuroImage, Vol 243, Iss, Pp 118516-(2021) NeuroImage |
| ISSN: | 1095-9572 |
| Popis: | Introduction Resting-state oscillatory activity has been extensively studied across a wide array of disorders. Establishing which spectrally- and spatially-specific oscillatory components exhibit test-retest reliability is essential to move the field forward. While studies have shown short-term reliability of MEG resting-state activity, no studies have examined test-retest reliability across an extended period of time to establish the stability of these signals, which is critical for reproducibility. Methods We examined 18 healthy adults age 23 - 61 who completed three visits across three years. For each visit, participants completed both a resting state MEG and structural MRI scan. MEG data were source imaged, and the cortical power in canonical frequency bands (delta, theta, alpha, beta, low gamma, high gamma) was computed. Intra-class correlation coefficients (ICC) were then calculated across the cortex for each frequency band. Results Over three years, power in the alpha and beta bands displayed the highest reliability estimates, while gamma showed the lowest estimates of three-year reliability. Spatially, delta, alpha, and beta all showed the highest degrees of reliability in the parietal cortex. Interestingly, the peak signal for each of these frequency bands was located outside of the parietal cortex, suggesting that reliability estimates were not solely dependent on the signal-to-noise ratio. Conclusion Oscillatory resting-state power in parietal delta, posterior beta, and alpha across most of the cortex are reliable across three years and future MEEG studies may focus on these measures for the development of specific markers. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect