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| Amplituda niskofrekventnih fluktuacija× | Voxel-Based Morphometry× | |
|---|---|---|
| Područje | Neurooslikavanje | Neurooslikavanje |
| Obitelj | Process / pipeline | Process / pipeline |
| Godina nastanka≠ | 2007 | 2000 |
| Tvorac≠ | Long Xiao-Yan | John Ashburner |
| Vrsta≠ | Resting-state fMRI amplitude analysis | Structural MRI gray matter analysis pipeline |
| Temeljni izvor≠ | 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 ↗ | Ashburner, J., & Friston, K. J. (2000). Voxel-based morphometry—the methods. NeuroImage, 11(6), 805–821. DOI ↗ |
| Drugi nazivi | ALFF, low-frequency oscillation amplitude | VBM, grey matter morphometry |
| Srodne≠ | 3 | 2 |
| Sažetak≠ | 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. | Voxel-Based Morphometry (VBM) is a whole-brain statistical technique for detecting local differences in gray matter volume or concentration from structural MRI. Introduced by John Ashburner and Karl Friston in 2000, VBM enables researchers to identify regional brain volume changes associated with disease, aging, learning, and other factors without requiring a priori region-of-interest definitions. |
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