| 
      
        |  | Subjects (male/female) | Education Mean (std dev) | MMSE |  
        | Normal Aging | 105 (64/41) | 15.90 (3.12) | 28.98 (1.12) |  
        | MCI | 204 (137/67) | 15.80 (2.88) | 27.15 (1.71)a |  
        | AD | 94 (56/38) | 14.61 (3.21)a,b | 23.48 (2.14)a,b |  | 
  
    | asignificant difference from normal aging (p < 0.05), bsignificant difference from MCI (p< 0.05). | 
  
    | Table 1: Demographic information. |