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| 지역적 동질성× | 저주파 변동 진폭× | |
|---|---|---|
| 분야 | 신경영상 | 신경영상 |
| 계열 | Process / pipeline | Process / pipeline |
| 기원 연도≠ | 2004 | 2007 |
| 창시자≠ | Yong-He Zang | Long Xiao-Yan |
| 유형≠ | Resting-state fMRI homogeneity analysis | Resting-state fMRI amplitude analysis |
| 원전≠ | 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 ↗ |
| 별칭 | ReHo, regional synchronization | ALFF, low-frequency oscillation amplitude |
| 관련 | 3 | 3 |
| 요약≠ | 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. |
| ScholarGate데이터셋 ↗ |
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