How We Type: Movement Strategies and Performance in Everyday Typing

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" summary

Motion capture at 420 fps and eye-tracking glasses record 30 everyday typists (13 trained, 17 self‑taught) and produce a public dataset with 52 markers and finger-to-key labels. Results show no speed difference between trained and untrained: untrained users often match touch-typists, despite using fewer fingers. Three predictors of high performance emerge: unambiguous finger→key mapping, active preparation of upcoming keystrokes, and minimal global hand motion; right-hand shows greater global movement than left.

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" chapters (10)

1. 0:00Introduction to typing study
2. 1:39Touch typing system explained
3. 3:05Limitations of touch typing research
4. 6:15Study design and motion capture
5. 9:06Trained vs untrained typists
6. 11:18Factors that make typists fast
7. 13:31Hand movement and finger consistency
8. 15:44Finger-to-key mapping strategies
9. 17:10Implications of the findings
10. 18:20Q&A session