مقایسهٔ روشها
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| دامنه نوسانات بسامد پایین× | کانکتیویتی عملکردی پویا× | |
|---|---|---|
| حوزه | تصویربرداری عصبی | تصویربرداری عصبی |
| خانواده | Process / pipeline | Process / pipeline |
| سال پیدایش≠ | 2007 | 2013 |
| پدیدآور≠ | Long Xiao-Yan | Ryan M. Hutchison |
| نوع≠ | Resting-state fMRI amplitude analysis | Resting-state fMRI connectivity pipeline |
| منبع بنیادین≠ | 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 ↗ | Hutchison, R. M., Womelsdorf, T., Allen, E. A., et al. (2013). Dynamic functional connectivity: promise, problems, and perspectives. NeuroImage, 80, 360–378. link ↗ |
| نامهای دیگر≠ | ALFF, low-frequency oscillation amplitude | dFC, time-varying connectivity, sliding window connectivity |
| مرتبط | 3 | 3 |
| خلاصه≠ | 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. | Dynamic Functional Connectivity (dFC) is an analytical framework that tracks changes in functional connectivity between brain regions over time, rather than averaging connectivity across an entire scanning session. Systematized by Hutchison and colleagues in 2013, dFC reveals how brain networks reorganize moment-to-moment, providing insights into transient brain states and cognitive flexibility. |
| ScholarGateمجموعهداده ↗ |
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