fixed bug that broke CTM for HCP subject
fixed bug that broke CTM for HCP subject

CVML/pycortex,smerdis/pycortex,gallantlab/pycortex,smerdis/pycortex,gallantlab/pycortex,gallantlab/pycortex,gallantlab/pycortex,CVML/pycortex,CVML/pycortex,smerdis/pycortex,CVML/pycortex,gallantlab/pycortex,smerdis/pycortex,smerdis/pycortex,CVML/pycortex