[1] Sichuan Univ, West China Hosp, Dept Anesthesiol, Chengdu 610041, Peoples R China
[2] Univ Elect Sci & Technol China, Sichuan Acad Med Sci & Sichuan Prov Peoples Hosp, Dept Anesthesiol, Chengdu, Sichuan, Peoples R China
[3] Sichuan Univ, West China Hosp, Sleep Med Ctr, Chengdu 610041, Peoples R China
[4] Univ Hong Kong, Dept Psychol, Pokfulam, Hong Kong, Peoples R China
[5] Univ Hong Kong, State Key Lab Brain & Cognit Sci, Pokfulam, Hong Kong, Peoples R China
[6] Chinese Univ Hong Kong, Fac Med, Dept Psychiat, Shatin, Hong Kong, Peoples R China
[7] Sichuan Univ, West China Hosp, Dept Neurol, Chengdu, Peoples R China
[8] Sichuan Univ, West China Hosp, Translat Neurosci Ctr, Lab Anesthesia & Crit Care Med, Chengdu, Peoples R China