Touchscreens in Motion: Quantifying the Impact of Cognitive Load on Distracted Drivers
summary
Study uses N‑back to induce four cognitive loads, a Fitts’ ring task on a driving simulator, pupil and skin conductance, hand‑tracking and gaze to measure real effects: touchscreen pointing throughput drops by over 58.1% during driving, pointing movement time rises 20.2% under high load, and lateral driving deviation increases 41.9% when touch interactions appear. Physiological signals (pupil diameter, EDA) scale with load, glances become shorter and more frequent, and a prevalent hand-before-eye phenomenon appears in >71% of interactions.
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chapters (8)
- 0:00Introduction and motivation
- 1:07Touchscreen prevalence in vehicles
- 2:34Study design and methodology
- 4:43Physiological signals and cognitive load
- 5:52Touchscreen interaction under load
- 6:56Hand before eye phenomenon
- 8:44Design implications for in-car UIs
- 10:34Q&A session
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