In the current study, we propose 2 aims. Our first aim is to determine the feasibility and efficacy of a novel brain-computer interface-assisted MI train program (BCI-MI) in patients with chronic ischemic stroke. This is designed as a proof-of-concept study that only require a single-session trial. If patients successfully activate the BCI-MI system without much difficulty, our second aim is to enroll patients into a 4-week training program using the BCI-MI. Both functional magnetic resonance imaging (fMRI) and transcranial magnetic stimulation (TMS) will be done to determine the effects of the 4-week training program. Subjects may potentially see improvements in walking gait as preliminary data from previous studies have demonstrated positive results.