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| Amplituda niskofrekventnih fluktuacija× | Regionalna homogenost× | |
|---|---|---|
| Područje | Neurooslikavanje | Neurooslikavanje |
| Obitelj | Process / pipeline | Process / pipeline |
| Godina nastanka≠ | 2007 | 2004 |
| Tvorac≠ | Long Xiao-Yan | Yong-He Zang |
| Vrsta≠ | Resting-state fMRI amplitude analysis | Resting-state fMRI homogeneity analysis |
| 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 ↗ | 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 ↗ |
| Drugi nazivi | ALFF, low-frequency oscillation amplitude | ReHo, regional synchronization |
| Srodne | 3 | 3 |
| 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. | 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. |
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