Stress Evaluation in Simulated Autonomous and Manual Driving through the Analysis of Skin Potential Response and Electrocardiogram Signals

The evaluation of car drivers’ stress condition is gaining interest as research on Autonomous Driving Systems (ADS) progresses. The analysis of the stress response can be used to assess the acceptability of ADS and to compare the driving styles of different autonomous drive algorithms. In this contr...

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Main Authors: Pamela Zontone, Antonio Affanni, Riccardo Bernardini, Leonida Del Linz, Alessandro Piras, Roberto Rinaldo
Format: Article
Language:English
Published: MDPI AG 2020-04-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/20/9/2494
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author Pamela Zontone
Antonio Affanni
Riccardo Bernardini
Leonida Del Linz
Alessandro Piras
Roberto Rinaldo
author_facet Pamela Zontone
Antonio Affanni
Riccardo Bernardini
Leonida Del Linz
Alessandro Piras
Roberto Rinaldo
author_sort Pamela Zontone
collection DOAJ
description The evaluation of car drivers’ stress condition is gaining interest as research on Autonomous Driving Systems (ADS) progresses. The analysis of the stress response can be used to assess the acceptability of ADS and to compare the driving styles of different autonomous drive algorithms. In this contribution, we present a system based on the analysis of the Electrodermal Activity Skin Potential Response (SPR) signal, aimed to reveal the driver’s stress induced by different driving situations. We reduce motion artifacts by processing two SPR signals, recorded from the hands of the subjects, and outputting a single clean SPR signal. Statistical features of signal blocks are sent to a Supervised Learning Algorithm, which classifies between stress and normal driving (non-stress) conditions. We present the results obtained from an experiment using a professional driving simulator, where a group of people is asked to undergo manual and autonomous driving on a highway, facing some unexpected events meant to generate stress. The results of our experiment show that the subjects generally appear more stressed during manual driving, indicating that the autonomous drive can possibly be well received by the public. During autonomous driving, however, significant peaks of the SPR signal are evident during unexpected events. By examining the electrocardiogram signal, the average heart rate is generally higher in the manual case compared to the autonomous case. This further supports our previous findings, even if it may be due, in part, to the physical activity involved in manual driving.
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spelling doaj.art-53de5f8630e741e2ad2cb7c77d6bca792023-11-19T22:56:58ZengMDPI AGSensors1424-82202020-04-01209249410.3390/s20092494Stress Evaluation in Simulated Autonomous and Manual Driving through the Analysis of Skin Potential Response and Electrocardiogram SignalsPamela Zontone0Antonio Affanni1Riccardo Bernardini2Leonida Del Linz3Alessandro Piras4Roberto Rinaldo5Polytechnic Department of Engineering and Architecture, University of Udine, Via delle Scienze 206, 33100 Udine, ItalyPolytechnic Department of Engineering and Architecture, University of Udine, Via delle Scienze 206, 33100 Udine, ItalyPolytechnic Department of Engineering and Architecture, University of Udine, Via delle Scienze 206, 33100 Udine, ItalyPolytechnic Department of Engineering and Architecture, University of Udine, Via delle Scienze 206, 33100 Udine, ItalyPolytechnic Department of Engineering and Architecture, University of Udine, Via delle Scienze 206, 33100 Udine, ItalyPolytechnic Department of Engineering and Architecture, University of Udine, Via delle Scienze 206, 33100 Udine, ItalyThe evaluation of car drivers’ stress condition is gaining interest as research on Autonomous Driving Systems (ADS) progresses. The analysis of the stress response can be used to assess the acceptability of ADS and to compare the driving styles of different autonomous drive algorithms. In this contribution, we present a system based on the analysis of the Electrodermal Activity Skin Potential Response (SPR) signal, aimed to reveal the driver’s stress induced by different driving situations. We reduce motion artifacts by processing two SPR signals, recorded from the hands of the subjects, and outputting a single clean SPR signal. Statistical features of signal blocks are sent to a Supervised Learning Algorithm, which classifies between stress and normal driving (non-stress) conditions. We present the results obtained from an experiment using a professional driving simulator, where a group of people is asked to undergo manual and autonomous driving on a highway, facing some unexpected events meant to generate stress. The results of our experiment show that the subjects generally appear more stressed during manual driving, indicating that the autonomous drive can possibly be well received by the public. During autonomous driving, however, significant peaks of the SPR signal are evident during unexpected events. By examining the electrocardiogram signal, the average heart rate is generally higher in the manual case compared to the autonomous case. This further supports our previous findings, even if it may be due, in part, to the physical activity involved in manual driving.https://www.mdpi.com/1424-8220/20/9/2494autonomous drivingstress recognitionskin potential responseelectrocardiogramsupervised learning algorithm
spellingShingle Pamela Zontone
Antonio Affanni
Riccardo Bernardini
Leonida Del Linz
Alessandro Piras
Roberto Rinaldo
Stress Evaluation in Simulated Autonomous and Manual Driving through the Analysis of Skin Potential Response and Electrocardiogram Signals
Sensors
autonomous driving
stress recognition
skin potential response
electrocardiogram
supervised learning algorithm
title Stress Evaluation in Simulated Autonomous and Manual Driving through the Analysis of Skin Potential Response and Electrocardiogram Signals
title_full Stress Evaluation in Simulated Autonomous and Manual Driving through the Analysis of Skin Potential Response and Electrocardiogram Signals
title_fullStr Stress Evaluation in Simulated Autonomous and Manual Driving through the Analysis of Skin Potential Response and Electrocardiogram Signals
title_full_unstemmed Stress Evaluation in Simulated Autonomous and Manual Driving through the Analysis of Skin Potential Response and Electrocardiogram Signals
title_short Stress Evaluation in Simulated Autonomous and Manual Driving through the Analysis of Skin Potential Response and Electrocardiogram Signals
title_sort stress evaluation in simulated autonomous and manual driving through the analysis of skin potential response and electrocardiogram signals
topic autonomous driving
stress recognition
skin potential response
electrocardiogram
supervised learning algorithm
url https://www.mdpi.com/1424-8220/20/9/2494
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