The data of our correlation tests have revealed that only Iba1+ cells, but not CD68+ cells or P2RY12+ cells, in the peri-infarct cavity cortex have significantly negative correlations with infarction size and somatosensory-motor functional impairments (tape removal test), and a significantly positive correlation with motor coordination function (rotarod test). The gene discussed is AIF1; the disease is infarction.