Table 1.
Characteristics of participants who completed task-fMRI
| Age | MMSE | ADAS delayed recall | Dprime | Aβ42 | Total tau | p-tau | |
|---|---|---|---|---|---|---|---|
| Healthy controls, N = 40 | |||||||
| Mean | 67.7 | 29.4 | 7.7 | 1.14 | 834.1 | 325.3 | 46.3 |
| SD | 5.15 | 0.9 | 1.7 | 0.37 | 295.8 | 113.0 | 15.1 |
| SCD, N = 21 | |||||||
| Mean | 70.0 | 29.0 | 7.7 | 1.09 | 892.0 | 367.1 | 53.6 |
| SD | 5.96 | 1.1 | 1.9 | 0.48 | 325.5 | 102.5 | 16.8 |
| MCI, N = 15 | |||||||
| Mean | 72.4 | 28.1 | 4.5 | 0.70 | 674.3 | 450.0 | 59.2 |
| SD | 4.88 | 1.6 | 2.4 | 0.39 | 305.0 | 151.7 | 19.6 |
Abbreviations: MMSE, Mini–Mental Status Examination; MCI, mild cognitive impairment; SCD, subjective cognitive decline; fMRI, functional magnetic resonance imaging.
NOTE. Dprime is a measure of memory discrimination of repeated scenes (presented during task-fMRI) and new distractors (not presented during task-fMRI). A value of 0 would correspond to chance-level performance. Mean values are given in bold.