NCs (n=28) | Early PD (n=29) | Advanced PD (n=10) | ||||
---|---|---|---|---|---|---|
Gist | Item | Gist | Item | Gist | Item | |
Disease duration | – | – | −0.27 | 0.16 | −0.44 | 0.42 |
DRM paradigm | ||||||
CTR | 0.62* | 0.30 | 0.54* | 0.10 | −0.37 | 0.35 |
Gist | – | −0.41† | – | −0.63* | – | −0.28 |
Item | −0.41† | – | −0.63* | – | −0.28 | – |
Memory function | ||||||
LMI—free recall units | 0.22 | −0.24 | 0.48† | −0.03 | −0.19 | 0.64 |
LMI—thematic units | 0.25 | −0.30 | 0.32 | 0.03 | −0.14 | 0.73† |
LMII—free recall units | 0.09 | −0.18 | 0.32 | −0.07 | −0.23 | 0.60 |
LMII—thematic units | 0.25 | −0.20 | 0.33 | −0.05 | −0.22 | 0.63 |
LMII—recognition | 0.16 | −0.16 | 0.24 | −0.27 | −0.20 | −0.26 |
Executive function | ||||||
MCST-C | −0.08 | −0.20 | 0.05 | −0.03 | −0.07 | 0.34 |
MCST-P | 0.04 | −0.17 | −0.09 | 0.12 | 0.10 | −0.21 |
Verbal fluency | −0.10 | 0.26 | 0.27 | 0.10 | −0.27 | 0.25 |
TMTA | −0.34 | 0.40† | 0.02 | −0.03 | 0.28 | 0.37 |
TMTB | −0.40 | 0.47† | −0.37 | 0.42† | 0.10 | 0.02 |
*Correlation is significant at the 0.01 level (2-tailed).
†Correlation is significant at the 0.05 level (2-tailed).
See tables 1 and 2.
CTR, corrected target recognition rate; DRM, Deese-Roediger-McDermott paradigm; gist, gist memory; item, item-specific memory; LM, logical memory; MCST-C and MCST-P indicate the achieved categories and perseverative errors in the Wisconsin Card Sorting Test, respectively; NCs, normal controls; PD, Parkinson's disease; TMT, Trail Making Test.