Fig 1.

A, The seed ROI was placed on the pontomedullary junction (CST area). Target ROIs were placed on the primary motor cortex (red), the primary somatosensory cortex (green), the dorsal premotor cortex (yellow), and the supplementary motor area (blue). B, CSTs were reconstructed in both hemispheres. Red indicates CSTs for the primary motor cortex; green, CSTs for the primary somatosensory cortex; yellow, CSTs for the dorsal premotor cortex; blue, CSTs for the supplementary motor area. C, CSTs from each ROI were reconstructed in both hemispheres.