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Subject demographics
| Variable | Right‐handed | Left‐handed | Significance (P) |
|---|---|---|---|
| N | 25 | 15 | N/A |
| Age | 60.2 ± 6.5 | 59.9 ± 6.4 | 0.875 |
| Sex ratio (M:F) | 18:7 | 11:4 | 0.366 |
| Years of education | 15.8 ± 2.8 | 16.7 ± 2.9 | 0.352 |
| Verbal IQ | 107.7 ± 7.6 | 108.6 ± 13.0 | 0.788 |
| Full scale IQ | 109.3 ± 6.6 | 110.1 ± 11.4 | 0.765 |
