Table 1
Overview of the seven components of the copy task.
| Components | |
|---|---|
| Tapping task | press the ‘d’ and ‘k’ key alternatively during 15 s |
| Sentence | copy a sentence during 30 s |
| Word combination 1 | copy a combination of three words seven times |
| Word combination 2 | copy a combination of three words seven times |
| Word combination 3 | copy a combination of three words seven times |
| Word combination 4 | copy a combination of three words seven times |
| Consonant groups | copy four blocks of six consonants once |
Table 2
Examples of the word combination prompts in the English_UK (QWERTY) copy task including the controlled characteristics.
| Word combination 1 | Word combination 2 | Word combination 3 | Word combination 4 | |
|---|---|---|---|---|
| Word 1 (numerical) | four | seven | five | some |
| Word 2 (adjective) | interesting | wonderful | important | awkward |
| Word 3 (noun) | questions | surprises | behaviors | zigzags |
| #characters | 24 | 23 | 23 | 18 |
| High Frequent bigrams (HF – e.g., ‘nt’) | 19 | 18 | 18 | 8 |
| Low Frequent bigrams (LF – e.g., ‘gz’) | 0 | 0 | 0 | 4 |
| Left-Left (LL – e.g., ‘es’) | 4 | 6 | 1 | 5 |
| Left-Right (LR – e.g., ‘fo’) | 4 | 6 | 2 | 3 |
| Right-Right (RR – e.g., ‘ou’) | 4 | 2 | 5 | 1 |
| Right-Left (RL – e.g., ‘us’) | 3 | 4 | 2 | 2 |
| Adjacent keys (e.g., ‘io’) | 7 | 6 | 3 | 4 |
| Repetitive keys | 0 | 0 | 0 | 0 |
Figure 1
Keyboard scheme (e.g. QWERTY) used to define the four hand combinations: Blue = Left hand – Red = Right hand; midzone is characterized as undefined.
Figure 2
Presentation flow of the copy task.
Figure 3
Screen captures of the tapping and word combination component.
Figure 4
Initial screen of the copy task creator interface.
Figure 5
Excerpt from the analysis output at the component level (styled XML).