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| Τοπική Ομοιογένεια× | Πλάτος Χαμηλοσυχνοτικών Κυμάνσεων× | |
|---|---|---|
| Πεδίο | Νευροαπεικόνιση | Νευροαπεικόνιση |
| Οικογένεια | Process / pipeline | Process / pipeline |
| Έτος προέλευσης≠ | 2004 | 2007 |
| Δημιουργός≠ | Yong-He Zang | Long Xiao-Yan |
| Τύπος≠ | Resting-state fMRI homogeneity analysis | Resting-state fMRI amplitude analysis |
| Θεμελιώδης πηγή≠ | Zang, Y. F., He, Y., Zhu, C. Z., et al. (2004). Altered baseline brain activity in children with ADHD revealed by resting-state functional MRI. Brain and Development, 26(7), 429–439. link ↗ | Yang, H., Long, X. Y., Yang, Y., et al. (2007). Amplitude of low frequency fluctuation within visual areas revealed by resting-state functional MRI. NeuroImage, 36(4), 773–781. DOI ↗ |
| Εναλλακτικές ονομασίες | ReHo, regional synchronization | ALFF, low-frequency oscillation amplitude |
| Συναφείς | 3 | 3 |
| Σύνοψη≠ | Regional Homogeneity (ReHo) is a measure of synchronization between a voxel and its spatial neighbors in resting-state fMRI. Introduced by Zang and colleagues in 2004, ReHo quantifies local within-cluster activity coherence, reflecting the degree to which brain regions exhibit synchronized spontaneous activity at rest. | Amplitude of Low-Frequency Fluctuation (ALFF) is a resting-state fMRI metric that quantifies the strength of spontaneous low-frequency oscillations (typically 0.01–0.1 Hz) in the brain. Introduced by Yang and colleagues in 2007, ALFF provides a voxel-wise measure of local brain activity, reflecting the amplitude of spontaneous fluctuations in blood oxygen levels at rest. |
| ScholarGateΣύνολο δεδομένων ↗ |
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