Metzak, P.D., Riley, J., Wang, L., Whitman, J.C., Ngan, E.T.C. & Woodward, T.S. (2011). Decreased efficiency of task-positive and task-negative networks during working memory in schizophrenia. Schizophrenia Bulletin. DOI: 10-1093/schbul/sbq154.   PDF   fMRI-CPCA Software

Metzak, P.D., Feredoes, E., Takane Y., Wang, L., Weinstein, S., Cairo, T., Ngan, E.T.C, & Woodward, T. S. (2011). Constrained principal component analysis reveals functionally connected load-dependent networks involved in multiple stages of working memory. Human Brain Mapping, 32(6), 856-871.  PDF   fMRI-CPCA Software

Woodward, T. S., Cairo, T. A., Ruff, C. C., Takane, Y., Hunter, M.A. & Ngan, E.T.C. (2006). Functional connectivity reveals load dependent neural systems underlying encoding and maintenance in verbal working memory. Neuroscience, 139(1), 317-325.   PDF   fMRI-CPCA Software