[1] Univ Aquila, Life Hlth & Environm Sci Dept, I-67100 Laquila, Italy
[2] IRCCS Santa Lucia Fdn, Neuropsychol Unit, I-00179 Rome, Italy
[3] Aston Univ, Sch Life & Hlth Sci, Birmingham B15, W Midlands, England
[4] Natl Cheng Kung Univ, Div Behav Neurol, Dept Neurol, Natl Cheng Kung Univ Hosp,Inst Gerontol,Coll Med, Tainan 701, Taiwan
[5] Natl Cheng Kung Univ, Alzheimers Dis Res Ctr, Natl Cheng Kung Univ Hosp, Inst Gerontol,Coll Med, Tainan 701, Taiwan