Fig. 3

Average cortical activation patterns during the digital rehabilitation program. (A) Grand average cortical activation patterns for each task. The significant t-values from the statistical parametric mapping (SPM) analysis are represented for each channel (P < 0.05). (B) Subgroup analysis of cortical activation patterns based on the Fugl–Meyer assessment for upper extremity (FMA-UE) severity. M1, primary motor cortex; PFC, prefrontal cortex; PPC, posterior parietal cortex; SMA, supplementary motor area; S1, primary somatosensory cortex