Descriptive and disease characteristics of PD patients (n = 36) and healthy participants (n = 34).

MADRS  =  Montgomery-Åsberg Depression Rating Scale; UPDRS  =  Unified Parkinson's Disease Rating Scale; H&Y  =  Hoehn and Yahr scale; LEDD  =  Levodopa Equivalent Daily Dose.

MADRS 即蒙哥马利-阿斯伯格抑郁量表（Montgomery-Åsberg Depression Rating Scale）；UPDRS 即统一帕金森病评定量表（Unified Parkinson's Disease Rating Scale）；H&Y 即霍恩-雅尔量表（Hoehn and Yahr scale）；LEDD 即左旋多巴等效日剂量（Levodopa Equivalent Daily Dose）。