Table 1.
Demographic and neuropsychological characteristics of patients and healthy controls
| NT | DC1 | DC2 |
Healthy controlsa (n = 4) |
|
|---|---|---|---|---|
| Age (years) | 67 | 63 | 74 | 67 (6.03) |
| Education (years) | 15 | 12 | 16 | 15 (2) |
| General intellect | ||||
| WASI VIQ | 118 | 63 | 115 | 72 (3.4) |
| WASI PIQ | 132 | 91 | 111 | 57 (2.6) |
| NART (/50) | >75th | <25th | >90th | 41 (4.8) |
| Episodic memory | ||||
| RMT Words (/50) | 25-50th | <5th | 5-10th | 44 (5.2) |
| RMT Faces (/50) | >95th | <5th | <5th | 46 (6.1) |
| Executive function | ||||
| D-KEFS Stroop word | >50th | >50th | >50th | 21 (3.5) |
| D-KEFS Stroop Inhibition | >50th | >50th | >50th | 53 (15.5) |
| Semantic processing | ||||
| BPVS (/150) | 146 | 103 | 138 | 149 (1.5) |
| Other skills | ||||
| GNT (/30) | >50th | <1st | <1st | 27 (2.9) |
| Forward DS (/12) | >95th | 75th-90th | 90th-95th | 8 (1) |
| Reverse DS (/12) | >50th | 50th-75th | 90th-95th | 6 (1) |
| Addition | >95th | >50th | 25-50th | 7 (1.2) |
| Subtraction | >95th | 25th-50th | >50th | 8 (3.3) |
| VOSP | >95th | 25-50th | >50th | 19 (0.5) |
| CBI | 52 | 203 | 46 | n/a |
| Experimental conditionsb | ||||
| Self (/10) | 10 | 10 | 10 | 9.5 (9-10) |
| Synchronous (/10) | 3 | 7 | 5 | 6.5 (5-7) |
| Asynchronous (/10) | 4 | 9 | 10 | 9.5 (9-10) |
Percentile ranking scores of neuropsychological performance are shown. Raw scores are listed where percentile scores are not available or applicable. BPVS, British Picture Vocabulary Scale; CBI, Cambridge Behavioural Inventory total score (across domains including mood, beliefs, challenging behaviors, disinhibition, eating, sleep, stereotypies, motivation, and insight (Wedderbum et al., 2008)); D-KEFS Stroop (word and inhibition), Delis-Kaplan Executive Function System; DS, digit span; GNT, Graded Naming Test; n/a, not applicable; NART, National Adult Reading Test; RMT, Recognition Memory Test; Verbal Intelligence score; VOSP, Visual Object and Space Perception battery; WASI PIQ, Wechsler Abbreviated Scale of Intelligence-Performance Intelligence score; WASI VIQ, Wechsler Abbreviated Scale of Intelligence, aMean (standard deviation) values shown, except for experimental conditions, in which mean (range) values shown. bSee text for explanation.