Statistical Power Analysis

pression, Journal of Clinical Psychiatry, 51, 61-69 (1990). 11. L.R. Baxter, Jr., J.M. Schwartz, B.H. Guze, J.C. Mazziotta, M.P. Szuba, K. Bergman, A. Alazraki, C.E. Selin, H.K. Freng, P. Munford, and M.E. Phelps, Obsessive-compulsive disorder vs. Tourette's disorder: Differential function in subdivi sions of the neostriatum, paper presented at the an nual meeting of the American College of Neuropsy chopharmacology, San Juan, Puerto Rico (December 1991). 12. E.M. Reiman, M.E. Raichle, F.K. Butler, P. Herscovitch, and E. Robins, A focal brain abnormal ity in panic disorder, a severe form of anxiety, Na ture, 310, 683-685 (1984); E.M. Reiman, M.E. Ra ichle, E. Robins, F.K. Butler, P. Herscovitch, P. Fox, and J. Perlmutter, The application of positron emis sion tomography to the study of panic disorder, American Journal of Psychiatry, 143, 469-477 (1986); T.E. Nordahl, W.E. Semple, M. Gross, T.A. Mellman, M.B. Stein, P. Goyer, A.C. King, T.W. Uhde, and R.M. Cohen, Cerebral glucose metabolic differences in patients with panic disorder, Neuro psychopharmacology, 3, 261-272 (1990).