Noninvasive identification of human central sulcus: a comparison of gyral morphology, functional MRI, dipole localization, and direct cortical mapping. - Vernon L. Towle; Leila Khorasani; Stephen J. Uftring; Charles A. Pelizzari; Robert K. Erickson; Jean-Paul Spire; Kenneth R. Hoffmann; David Chu; Michael Scherg (NeuroImage, 2003)