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57.3: The Effect of Touch Screen Hand Stability Method on Performance & Subjective Preference in Turbulence
Author(s) -
Lancaster Jeff,
Mers Bob,
Rogers Bill,
Smart Andy,
Whitlow Stephen
Publication year - 2011
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.3621464
Subject(s) - task (project management) , workload , simulation , preference , computer science , paired comparison , psychology , physical medicine and rehabilitation , statistics , mathematics , engineering , medicine , operating system , systems engineering
Eight participants conducted representative flight deck display interaction tasks using a touch screen fitted with four hand stabilization methods in turbulent motion conditions simulated by off‐road driving on a bumpy surface. A variety of objective and subjective data were gathered including workload, time on task, error rate, and electromyography (EMG) captured at the participants' forearms. Results indicated no significant differences in task performance across the hand stabilization methods, while preference ratings and comments significantly favored the “rails” hand stabilization method. EMG data indicated that the “slider” stabilization method reduced the variability in the EMG signal for all subjects. The results suggest that participants required at least some form of hand stabilization to support completion of flight deck tasks when using a touch screen in turbulent conditions.