TABLE 2.
Demographics and neuropsychological measures [mean (SD)] for veterans grouped by lesion location
| Variables/group | Right dlPFC N = 30 | Left dlPFC N = 28 | Right TPJ N = 16 | Left TPJ N = 7 | Other TBI N = 34 |
|---|---|---|---|---|---|
| Demographics: | |||||
| Age (years) | 57.33 (2.56) | 57.57 (1.66) | 58.25(2.04) | 58.28 (2.75) | 58.206 (2.39) |
| Education (years) | 14.16 (2.15) | 14.91 (2.67) | 14.43 (1.97) | 14.42 (2.93) | 15.10 (2.62) |
| Handedness (R:L:A) a | 24:4:2 | 24:4:0 | 14:1:1 | 7:00:00 | 26:6:2 |
| Neuropsychological: | |||||
| Preinjury IQ b | 63 (24.51) | 60 (22.92) | 62.75 (27.69) | 69.42 (31.4) | 66.52 (25.15) |
| Theory of Mind c | −1.167 (2.80) | 0.82 (3.50) | 0.5 (3.26) | 0.28 (3.63) | 1.08 (3.09) |
| Working memory d | 98.03 (12.85) | 95.32 (13.38) | 99.18 (13.67) | 80.71 (9.51) | 100.38 (15.55) |
| Verbal comprehension e | 105.6 (13.08) | 105.39 (17.03) | 111.62 (12.57) | 104.14 (19.54) | 111.67 (14.10) |
| Space perception f | 9.75 (0.51) | 9.82 (0.39) | 9.31 (0.94) | 10.00 (0) | 9.70 (0.57) |
| Total Brain Volume Loss (cc3) | 33.18 (27.76) | 39.30 (40.52) | 26.34 (13.57) | 50.50 (25.21) | 15.31 (14.27) |
Abbreviations: dlPFC, dorsolateral prefrontal cortex; TBI, traumatic brain‐injury; TPJ, temporoparietal junction; WAIS, Wechsler Adult Intelligence Scale.
a
Handedness (L:R:A), Left, right, and ambiguous.
b
Percentile score of Armed Forces Qualification Test (AFQT).
c
Strange stories task: difference score between ToM and Control condition. Lower score reflects lower ToM performance.
d
WAIS Working Memory Index score.
e
WAIS Verbal Comprehension Index score.
f
Scores on the dot counting test, a subtest from the Visual Object and Space Perception battery.