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| MEG-Quelllokalisierung× | Phasen-Locking Value× | |
|---|---|---|
| Fachgebiet | Neurobildgebung | Neurobildgebung |
| Familie | Process / pipeline | Process / pipeline |
| Entstehungsjahr≠ | 1972 | 1999 |
| Urheber≠ | David Cohen | Jean-Philippe Lachaux |
| Typ≠ | MEG neuroimaging analysis pipeline | EEG/MEG functional connectivity analysis |
| Wegweisende Quelle≠ | Hauk, O., Friston, K. J., & Leff, A. (2019). Functional neuroimaging of language: understanding the complex relationships between localization and function. Journal of Neurolinguistics, 50, 236–250. link ↗ | Lachaux, J. P., Rodriguez, E., Martinerie, J., & Varela, F. J. (1999). Measuring phase synchrony in brain signals. Human Brain Mapping, 8(4), 194–208. DOI ↗ |
| Aliasnamen | MEG localization, magnetic source imaging, MSI | PLV, phase synchronization, phase coupling |
| Verwandt | 3 | 3 |
| Zusammenfassung≠ | Magnetoencephalography (MEG) source localization is the inverse problem of estimating where in the brain neural currents originate from magnetic field measurements at the scalp. Introduced by David Cohen in 1972, MEG offers superior temporal resolution (milliseconds) and spatial specificity compared to EEG, as magnetic fields are less distorted by tissue conductivity, enabling researchers to pinpoint neural activity with high precision. | Phase-Locking Value (PLV) is a frequency-domain measure of neural synchronization that quantifies the stability of phase difference between two signals. Introduced by Lachaux and colleagues in 1999, PLV detects phase coupling between brain regions independent of signal amplitude, enabling researchers to characterize functional connectivity from EEG and MEG recordings. |
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