title: Sonification of in-vehicle interface reduces gaze movements under dual-task condition.
abstract: In-car infotainment systems (ICIS) often degrade driving performances since they divert the driver's gaze from the driving scene. Sonification of hierarchical menus (such as those found in most ICIS) is examined in this paper as one possible solution to reduce gaze movements towards the visual display. In a dual-task experiment in the laboratory, 46 participants were requested to prioritize a primary task (a continuous target detection task) and to simultaneously navigate in a realistic mock-up of an ICIS, either sonified or not. Results indicated that sonification significantly increased the time spent looking at the primary task, and significantly decreased the number and the duration of gaze saccades towards the ICIS. In other words, the sonified ICIS could be used nearly exclusively by ear. On the other hand, the reaction times in the primary task were increased in both silent and sonified conditions. This study suggests that sonification of secondary tasks while driving could improve the driver's visual attention of the driving scene.
authors.affiliation: MSHS-T USR3414, University of Toulouse and CNRS, Toulouse, France. Electronic address: julien.tardieu@univ-tlse2.fr.
authors.forename: Julien
authors.initials: J
authors.lastname: Tardieu
authors.affiliation: STMS Ircam-CNRS-UPMC, 1, place Igor Stravinsky, 75004 Paris, France.
authors.forename: Nicolas
authors.initials: N
authors.lastname: Misdariis
authors.affiliation: Renault - Cognitive Ergonomics & HMI, 1 avenue du Golf, 78084 Guyancourt, France.
authors.forename: Sabine
authors.initials: S
authors.lastname: Langlois
authors.affiliation: CLLE UMR5263, University of Toulouse and CNRS, Toulouse, France.
authors.forename: Pascal
authors.initials: P
authors.lastname: Gaillard
authors.affiliation: CLLE UMR5263, University of Toulouse and CNRS, Toulouse, France.
authors.forename: Céline
authors.initials: C
authors.lastname: Lemercier
mesh_terms: D000161:Acoustic Stimulation; D000328:Adult; D001288:Attention; D001334:Automobile Driving; D001336:Automobiles; D004867:Equipment Design; D005133:Eye Movements; D005260:Female; D005403:Fixation, Ocular; D006801:Humans; D008297:Male; D011597:Psychomotor Performance
keywords: Dual-task; Eye-tracking; Sonification