Table 3.
Standard scores and percentile ranks (in parentheses) for the proband, father and mother on a battery of neuropsychological tests (mean=100, sd=15). The trails tasks, the grooved pegboard task and the finger tapping task were administered to the proband at two different time points, one year apart in order to confirm a persistent asymmetric pattern of motor performance. The Edinburgh Handedness (Oldfield, 1971) was administered to quantitatively assess the proband’s lateralization of functions of his hands, feet, and eyes. Scores reflect number of behaviors for which the patient preferred to use his right or left hand, or had no lateral preference.
| Proband | Father | Mother | ||
|---|---|---|---|---|
| Time 1 | Time 2 | |||
| Trails A | 98 (45) | 106 (66) | 105 (63) | 101 (53) |
| Trails B | 98 (45) | 109 (73) | 115 (84) | 119 (90) |
| Grooved Pegboard | ||||
| Left Hand | 87 (19) | 107 (68) | 113 (81) | 93 (32) |
| Right Hand | <50 (<.1) | 80 (9) | 101 (53) | 77 (6) |
| Finger Tapping | ||||
| Left Hand | 115 (84) | 102 (55) | 100 (50) | 87 (19) |
| Right Hand | 112 (79) | 97 (27) | 85 (16) | 74 (4) |
| Wechsler Abbreviated Scale of Intelligence | ||||
| Full Scale IQ | 126 (96) | 120 (91) | 111 (77) | |
| Verbal IQ | 129 (97) | 122 (93) | 119 (90) | |
| Performance IQ | 117 (87) | 112 (73) | 101 (53) | |
| Edinburgh Handedness | ||||
| Left Hand | 0 | |||
| Right Hand | 16 | |||
| Ambidexterity | 7 | |||