Research Article
Posterior AD-Type Pathology: Cognitive Subtypes Emerging from a Cluster Analysis
Table 2
Variables used for the principal component analysis. Means (sd) and ranges of the row scores obtained in DAT and PCA are reported.
| Cognitive domains explored |
DAT | PCA |
| Memory | | | Rey immediate recall | 17.7 (8.6)
| 24.7 (10.4)
| Rey delayed recall | 0.7 (1.6)
| 3.2 (2.8)
| Rey recognition (0-1) | 0.7 (0.1)
| 0.8 (0.1)
| Babcock memory test (0–28) | 2.1 (2.4)
| 3.7 (3.8)
| Digit span forward (0–9) | 4.9 (0.7)
| 5.1 (1.2)
| Memory face | 1.6 (1.2)
| 2.9 (1.4)
| Visuoperceptual | | | FEEST | 37.1 (8.8)
| 32.1 (11.0)
| Digital agnosia | 3.2 (1.7)
| 2.0 (1.6)
| Benton face recognition | 34.4 (11.5)
| 25.3 (17.8)
| Famous face recognition | 24.4 (5.4)
| 18.3 (12.2)
| Vosp X-detection | 18.2 (1.9)
| 14.6 (5.6)
| Color naming | 4.2 (1.1)
| 4.3 (1.2)
| Visuospatial | | | Spatial span forward (0–9) | 4.2 (1.0)
| 2.3 (2.0)
| Double barrage (0-1) | 0.9 (0.1)
| 0.7 (0.2)
| Navon letters | 18.4 (9.6)
| 16.3 (8.0)
| Letter cancellation | 99.9 (9.8)
| 72 (36.7)
| Executive functions | | | Rey’s figure copy (0–36) | 19 (12.7)
| 3.0 (5.1)
| Language | | | Letter fluency (F, A, S) | 21.7 (13.9)
| 22.2 (13.4)
| Semantic fluency | 9.2 (4.3)
| 6.6 (3.7)
| Reading | 12.8 (3.3)
| 11.3 (3.8)
| Writing | 10.2 (2.7)
| 7.6 (4.0)
| Object naming | 15.5 (4.0)
| 13.1 (5.8)
| Sentence comprehension | 12.0 (2.5)
| 7.5 (5.0)
| Calculation | | | Addition | 1.7 (1.1)
| 1.0 (1.0)
| Subtraction | 1.3 (1.1)
| 0.9 (1.0)
| Multiplication | 1.8 (1.4)
| 1.3 (1.4)
|
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FEEST: facial expression of emotion: stimuli and tests; VOSP: visual object and space perception battery. For references see online resource.
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