Submitted for Publication:: November 22, 2011; final revision received March 27, 2012; accepted March 30, 2012.
Published Online: November 26, 2012. doi:10.1001/jamapsychiatry.2013.272
Author Contributions: Drs Suzuki and Sugihara contributed equally to this work.
Conflict of Interest Disclosures: None reported.
Funding/Support: This work was supported by the Strategic Research Program for Brain Sciences (“Integrated research on neuropsychiatric disorders”) and a Grant-in-Aid for Scientific Research from the Ministry of Education, Culture, Sports, Science, and Technology, Japan, and by the Research on Brain Science Funds from the Ministry of Health, Labour, and Welfare, Japan.
Role of the Sponsors: These funding sources played no role in the design or conduct of the study; collection, management, analysis, or interpretation of the data; or preparation, review, or approval of the manuscript.
Additional Contributions: We are grateful to Toshihiko Kanno, MS, Etsuji Yoshikawa, MS, Wataru Ishida, MA, Taro Takahashi, PhD, Utako Matsuo, MA, Kaori Inaho, MA, and Manami Ogawa, MA, for their excellent assistance.