TABLE 2.
ALFF differentiation between PI and healthy participants; ALFF and FC changes with right precuneus after taVNS treatment.
Brain regions | Side | Talairach | Number of | t values | ||
coordinates |
voxels | |||||
x | y | z | ||||
PI > HC(Pre_ALFF) | ||||||
Precuneus | right | 16 | −56 | 40 | 71 | 10.0 |
Pre_ALFF > Post_ALFF | ||||||
Precuneus | right | 6 | −48 | 51 | 55 | −4.3 |
Post_ALFF > Pre_ALFF | ||||||
Middle occipital gyrus | left | −29 | −76 | 15 | 77 | 4.4 |
Pre_FC > Post_FC | ||||||
Angular | right | 57 | −57 | 48 | 91 | −3.4 |
Superior frontal gyrus | right | −27 | 66 | 18 | 37 | −3.9 |
Middle frontal gyrus | right | 39 | 27 | 54 | 49 | −3.7 |
ALFF, amplitude of low-frequency fluctuation; FC, functional connectivity; PI, primary insomnia; HC, healthy participants; Pre, before taVNS treatment; Post, after taVNS treatment.