Comparison of the ALFF values of the resting-state functional MRI between the AD with and without depression groups
| Brain region | Side | MNI coordinates | Voxels | T value | ||
| X | Y | Z | ||||
| Superior frontal gyrus | Left | −18 | 54 | 27 | 189 | 4.58 |
| Right | 16 | 46 | 33 | 247 | 4.72 | |
| Middle frontal gyrus | Left | −42 | 39 | 3 | 188 | 3.62 |
| Inferior frontal gyrus | Left | −25 | 36 | -3 | 169 | 3.81 |
AD, Alzheimer’s disease; ALFF, amplitude of low frequency fluctuations.