1. From the Toronto Western Hospital Research Institute (H.-S.S., Y.F., L.T., M.A., A.L., J.P.F., M.T.), Toronto, Ontario, Canada; the Departments of Physiology (H.-S.S., M.T.) and Surgery (M.T.), University of Toronto, Toronto, Ontario, Canada; the Departments of Biology (T.A.D.), Biomedical Sciences (T.A.D., P.B.B., R.A.T.), and Psychology (C.L.R.), University of Prince Edward Island, Charlottetown, PEI, Canada; the Programme in Brain and Behaviour (M.W.S.), Hospital for Sick Children, Toronto,...