Electrophysiological and performance variations following driving events involving an increase in mental workload

European Transport Research Review

Hugo Loeches De La Fuente¹  Catherine Berthelon¹  Marleen De Weser²  Jonas Ambeck²  Alexandra Fort³  Christophe Jallais³  Virginie Etienne³ 

[1] IFSTTAR, TS2, LMA;Toyota Motor Europe, Advanced Technology;Univ Lyon, IFSTTAR, TS2, LESCOT;

关键词: Transportation safety;    Driving performance;    Mental workload;    electrocardiography;    Electrodermal activity;    ADAS;   

DOI  :  10.1186/s12544-019-0379-z

来源: DOAJ

【 摘 要 】

Abstract This study aimed at investigating how driver’s mental workload could be assessed during driving, using driving performance as well as electrophysiological and subjective data. Participants had to follow a lead vehicle at a safe and constant distance and to deal with two particular driving events (overtaking and pedestrian occurrence) within two sessions (baseline and experimental) on a driving simulator. Traffic density and time pressure (overtaking event) and time pressure (pedestrian event) were increased in the experimental session in order to induce a higher workload. Participants filled NASA TLX questionnaire after each driving session. Electrophysiological parameters (SCL, ECG), driving performance (SDLP and response to speed change of the lead vehicle: coherence, delay and gain) were analysed after each event in two temporal windows (30 s and 5 min). Results showed that both performance and physiological variables differed as a function of traffic conditions and time pressure. Moreover, while performance variations were systematically observed over a long period (5 min after the events), effects on mean SCL data obtained from experimental session notably differed from baseline values within 30 s after the events. Results are discussed in term of mental workload and suggestions are made about the safety systems that could monitor driver’s mental state.

【 授权许可】

Unknown