Frequency-dependent changes in the amplitude of low-frequency fluctuations in post stroke apathy: a resting-state fMRI study - Liu, Ying; Hsien, Yi-Kuang; Su, Wenlong; Tang, Zhiqing; Li, Hui; Long, Junzi; Liao, Xingxing; Zhang, Hao (Frontiers in Psychiatry, 2025)