Research Article
Age-Related Evolution Patterns in Online Handwriting
| Category | Age range | Number of writers |
| Teenagers () | 11–17 years | 68 | Young adults () | 18–35 years | 639 | Mid-age adults () | 36–50 years | 133 | Old adults () | 51–65 years | 43 | Seniors () | 66–75 years | 14 | Elders () | 76–86 years | 8 |
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