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Demographic data of 39 participantsa.
| Gender | Mean age in | Education (>10 years | ||
| n | (females) | years (range) | of schooling) | |
| AG | 14 | 6 | 34 (23–55) | 12 |
| TG | 11 | 6 | 30 (21–48) | 9 |
| CG | 14 | 7 | 33 (21–55) | 14 |
aAG, auditory training group; TG, tactile training group; CG, active control group.
