title: Effectiveness of a Forward Collision Warning System in simple and in dual task from an electrophysiological perspective.
abstract: Forward Collision Warning Systems (FCWS) are expected to assist drivers; however, it is not completely clear whether these systems are of benefit to distracted drivers as much as they are to undistracted drivers. This study aims at investigating further the analysis of the effectiveness of a surrogate FCWS according to the attentional state of participants. In this experiment electrophysiological and behavioural data were recording while participants were required to drive in a simple car simulator and to react to the braking of the lead vehicle which could be announced by a warning system. The effectiveness of this warning system was evaluated when drivers were distracted or not by a secondary cognitive task. In a previous study, the warning signal was not completely effective likely due to the presence of another predictor of the forthcoming braking which competes with the warning. By eliminating this secondary predictor in the present study, the results confirmed the negative effect of the secondary task and revealed the expected effectiveness of the warning system at behavioural and electrophysiological levels.
authors.affiliation: IFSTTAR-LESCOT, F-69675 Bron, France; University of Lyon, F-69622 Lyon, France. mercedes.bueno-garcia@ifsttar.fr
authors.forename: Mercedes
authors.initials: M
authors.lastname: Bueno
authors.forename: Alexandra
authors.initials: A
authors.lastname: Fort
authors.forename: Mathilde
authors.initials: M
authors.lastname: Francois
authors.forename: Daniel
authors.initials: D
authors.lastname: Ndiaye
authors.forename: Philippe
authors.initials: P
authors.lastname: Deleurence
authors.forename: Colette
authors.initials: C
authors.lastname: Fabrigoule
mesh_terms: D000328:Adult; D001288:Attention; D001334:Automobile Driving / Q000523:psychology; D001519:Behavior; D003198:Computer Simulation; D005071:Evoked Potentials; D006801:Humans; D008297:Male; D011482:Protective Devices; D011930:Reaction Time