Contributors Numbers in parentheses indicate the pages on which the au- thors' contributions begin. Jeffry R. Alger (387) Department of Radiological Sciences, Brain Research Institute, Jonsson Comprehensive Cancer Center, University of California, Los Angeles, California 90095 J. C. Baron (299) INSERM U320, CYCERON, University of Caen, Caen 14074, France Peter McL Black (107) Department of Neurosurgery, Brigham and Women's Hospital, Boston, Massachusetts 02115 Sarah-J. Blakemore (523) Wellcome Department of Cognitive Neurology, University College London, London WCIN 3BG, United Kingdom David J. Brooks (263) MRC Cyclotron Unit, Hammersmith Hospital, London TW7 4QN, United Kingdom Andrew F Cannestra (77) Laboratory of Neuro Imaging, Division of Brain Mapping, Department of Neurology, UCLA School of Medicine, Los Angeles, California 90095 Emmanouel Chatzidakis (107) Department of Neurosurgery, Brigham and Women's Hospital, Boston, Massachusetts 02115 Francois Chollet (587) INSERM U455 and Department of Neurology, Hopital Purpan, Toulouse 31059, France P Chua (509) Department of Neuropsychiatry and Department of Psychiatry, The Royal Melbourne Hospital, Parkville, Victoria 3050, Austraha Timothy F Cloughesy (387) Department of Neurology, Henry E. Singleton Brain Cancer Research Program, Jonsson Comprehensive Cancer Center, University of California, Los Angeles, California 90095 Jeffrey L. Cummings (217) Department of Psychiatry and Biobehavioral Sciences, UCLA School of Medicine, Los Angeles, California 90095 Jean-Francois Demonet (459) INSERM U455, Department of Neurology CHU Purpan, 31059 Toulouse, France V Dhawan (241) Functional Brain Imaging Laboratory, Department of Neurology, North Shore University Hospital, Manhasset, New York 11030 R. J. Dolan (509) Wellcome Department of Cognitive Neurology, London WCIN 3BG, United Kingdom John S. Duncan (317) Institute of Neurology, London WCIN 3BG, United Kingdom C. Edwards (241) Functional Brain Imaging Laboratory Department of Neurology, North Shore University Hospital, Manhasset, New York 11030 D. Eidelberg (241) Functional Brain Imaging Laboratory, Department of Neurology, North Shore University Hospital, Manhasset, New York 11030; and Department of Neurology, The New York Hospital-Cornell Medical Center, New York, New York 10021 P C. Fletcher (201) Research Department of Psychiatry Cambridge University, Addenbrooke's Hospital, Cambridge CB2 2QQ, United Kingdom Richard S. J. Frackowiak (3) Wellcome Department of Cognitive Neurology, Institute of Neurology, University College London, London WCIN 3BG, United Kingdom XI XII Contributors Karl J. Friston (33) Wellcome Department of Cognitive Neurology, Institute of Neurology, London WCIN 3BG, United Kingdom Chris D. Frith (523) Wellcome Department of Cognitive Neurology, University College London, London WCIN 3BG, United Kingdom David Gering (107) Artificial Intelligence Laboratory, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 SidGilman (417) Department of Neurology, University of Michigan Medical Center, Ann Arbor, Michigan 48109 Scott T. Grafton (613) Departments of Neurology and Radiology, Emory University School of Medicine, Atlanta, Georgia 30322 Eric Grimson (107) Artificial Intelligence Laboratory, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 Michel Habib (459) Cognitive Neurology Laboratory, Department of Neurology, CHU Timone, 13385 Marseille, France Marl< Hallett (569) Human Motor Control Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland 20892 Nobuhiko Hata (107) Department of Radiology, Brigham and Women's Hospital, Boston, Massachusetts 02115 Thomas Henry (613) Departments of Neurology and Radiology, Emory University School of Medicine, Atlanta, Georgia 30322 Mary Heumann (417) Department of Neurology, University of Michigan Medical Center, Ann Arbor, Michigan 48109 Ferenc A. Jolesz (107) Department of Radiology, Brigham and Women's Hospital, Boston, Massachusetts 02115 Larry Junck (417) Department of Neurology, University of Michigan Medical Center, Ann Arbor, Michigan 48109 Ron Kikinis (107) Department of Radiology, Brigham and Women's Hospital, Boston, Massachusetts 02115 David K. B. Li (357) Department of Diagnostic Radiology, Vancouver Hospital and Health Sciences Center, University of British Columbia, Vancouver, British Columbia, Canada V6T 2B5 G. Marchal (299) INSERM U320, CYCERON, University of Caen, Caen 14074, France Helen S. Mayberg (485) Rotman Research Institute, Departments of Psychiatry and Medicine (Neurology), University of Toronto, Toronto, Ontario, Canada M6A 2E1 John C. Mazziotta (3, 59) Ahmanson-Lovelace Brain Mapping Center, UCLA School of Medicine, Los Angeles, California 90095 Michaels. Mega (131, 217) Laboratory of Neuro Imaging and Alzheimer's Disease Center, Division of Brain Mapping, Department of Neurology, UCLA School of Medicine, Los Angeles, California 90095 NeeravR. Mehta (107) Department of Radiology, Brigham and Women's Hospital, Boston, Massachusetts 02115 M. Mentis (241) Functional Brain Imaging Laboratory, Department of Neurology, North Shore University Hospital, Manhasset, New York 11030 J. R. Moeller (241) Department of Biological Psychiatry, New York State Psychiatric Institute, New York, New York 10032 Arya Nabavi (107) Department of Neurosurgery, Brigham and Women's Hospital, Boston, Massachusetts 02115 George A. Ojemann (77) Department of Neurological Surgery, University of Washington, Seattle, Washington 98195 Jeffrey G. Ojemann (77) Department of Neurological Surgery and Neurolmaging Laboratory, Washington University School of Medicine, St. Louis, Missouri 63110 Donald Paty (357) Division of Neurology, Vancouver Hospital and Health Sciences Center, University of British Columbia, Vancouver, British Columbia, Canada V6T 2B5 Richard S. Pergolizzi, Jr. (107] Department of Radiology, Brigham and Women's Hospital, Boston, Massachusetts 02115 Cathy J. Price (181) Wellcome Department of Cognitive Neurology, Institute of Neurology, London WCIN 3BG, United Kingdom Guy Sawie (285) Department of Neurology, Queens Medical Centre, Nottingham NG7 2UH, United Kingdom Richard B. Schwartz (107) Department of Radiology, Brigham and Women's Hospital, Boston, Massachusetts 02115 Contributors XIII Frank W. Telang (545) Medical Department, Brookhaven National Laboratory, Upton, New York 11973 William H. Theodore (599) National Institutes of Health, Bethesda, Maryland 20892 Paul M. Thompson (131,217) Laboratory of Neuro Imaging, Division of Brain Mapping, Department of Neurology, UCLA School of Medicine, Los Angeles, California 90095 Arthur W. Toga (77, 131,217) Laboratory of Neuro Imaging, Division of Brain Mapping, Department of Neurology, UCLA School of Medicine, Los Angeles, California 90095 Roberts. Turner (613) Departments of Neurology and Radiology, Emory University School of Medicine, Atlanta, Georgia 30322 Nora D. Volkow (545) Medical Department, Brookhaven National Laboratory, Upton, New York 11973; and Department of Psychiatry, State University of New York at Stony Brook, Stony Brook, New York 11794 Simon Warfield (107) Department of Radiology, Brigham and Women's Hospital, Boston, Massachusetts 02115 Cornelius Weiller (587) Department of Neurology, Universitatskrankenhaus Hamburg-Eppendorf, D-20246 Hamburg, Germany Neil Weisenfeld (107) Artificial Intelligence Laboratory, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 William Wells III i]07] Artificial Intelhgence Laboratory, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 Guojun Zhao (357) Division of Neurology, Vancouver Hospital and Health Sciences Center, University of British Columbia, Vancouver, British Columbia, Canada V6T 2B5