Table 6. Within-group Spearman correlations between relative hippocampal volume (corrected for age and gender) and T scores of neuropsychological function.
| Controls | Amyloid-positive MCI | Poststroke | |
|---|---|---|---|
| Memory | |||
| Word list memory; immediate recall (RAVLT) | rho=−0.071/P=0.350 | rho=0.640/P<0.001 | rho=0.377/P=0.029 |
| Word list memory; delayed recall (RAVLT) | rho=−0.157/P=0.196 | rho=0.542/P=0.002 | rho=0.275/P=0.087 |
| Story memory; immediate recall (WMS-R) | Data not available | rho=0.361/P=0.035 | rho=0.417/P=0.017 |
| Story memory; delayed recall (WMS-R) | Data not available | rho=0.548/P=0.002 | rho=0.578/P=0.001 |
| Psychomotor speed | |||
| D-KEFS Stroop 1 (Color naming) | rho=−0.237/P=0.096 | rho=0.206/P=0.151 | rho=0.097/P=0.318 |
| D-KEFS Stroop 2 (Word reading) | rho=−0.032/P=0.431 | rho=0.140/P=0.244 | rho=0.263/P=0.097 |
| Digit-symbol (WAIS-III) | Data not available | rho=0.303/P=0.062 | rho=0.236/P=0.123 |
| Executive functions | |||
| D-KEFS Stroop 3 (Color-Word response inhibition) | rho=−0.054/P=0.385 | rho=0.422/P=0.014 | rho=0.045/P=0.413 |
| D-KEFS Stroop 4 (Color-Word Switching) | rho=0.032/P=0.431 | rho=0.529/P=0.003 | rho=0.168/P=0.206 |
| Letter-number sequencing (WAIS-III) | rho=−0.112/P=0.268 | rho=0.346/P=0.039 | rho=0.094/P=0.324 |
| General screening test | |||
| MMSE | rho=0.229/P=0.097 | rho=0.226/P=0.129 | rho=0.389/P=0.027 |
Abbreviations: D-KEFS, Delis-Kaplan Executive Function System; MCI, mild cognitive impairment; MMSE, mini-mental state examination; RAVLT, Rey Auditory Verbal Learning Test; WAIS-III, Wechsler Adult Intelligence Scale – Third Edition; WMS-R, Wechsler Memory Scale – Revised. Neuropsychological measures (except MMSE) are normed (T-scores). Negative correlations are denoted with a minus (−). Significant correlations are shown in bold.