Cortical surface data, from MR scans. Axial slice outlines with 500 points on each outline. 68 individuals.
cortical$age ( age) cortical$group ( Control, Schizophrenia) cortical$sex ( 1 = male, 2 = female) cortical$symm ( a symmetry measure from the original 3D cortical surface )
cortical$x (500 x , y coordinates of an axial slice through the cortical surface intersecting the anterior and posterior commissures)
cortical$r (500 radii from equal angular polar coordinates )
Brignell, C.J., Dryden, I.L., Gattone, S.A., Park, B., Leask, S., Browne, W.J. and Flynn, S. (2010). Surface shape analysis, with an application to brain surface asymmetry in schizophrenia. Biostatistics, 11, 609-630.
Dryden, I.L. (2005). Statistical analysis on high-dimensional spheres and shape spaces. Annals of Statistics, 33, 1643-1665
Original MR data from Sean Flynn (UBC) in collaboration with Bert Park (Nottingham).