Driver Attention Assessment Using Physiological Measures from EEG, ECG, and EDA Signals

Figures

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  Figure 1. Placement of the EEG electrodes according to the 10/20 standard.

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  Figure 2. Placement of the ECG and SPR electrodes.

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  Figure 3. Connectivity networks of subjects 1–17. The thicker lines are associated with higher correlation. (a) Manual, alfa waves; (b) ADAS, alpha waves.

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  Figure 4. Connectivity networks of subjects 1–17. The thicker lines are associated with higher correlation. (a) Manual, beta waves; (b) ADAS, beta waves.

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  Figure 5. Example of EEG signal in Fp1 location (blue line) and blink identification by Blinker (red markers).

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  Figure 6. A test subject in our lab using our simulator setup, with SPR, ECG, and EEG sensors employed to acquire the physiological signals (Experiment 2).

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  Figure 7. Example of obstacle mimicking road work with Jersey barriers to force multiple lane changes.

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  Figure 8. Box plot representing the relative power content of muscle (EMG), heart (ECG), and power line noise for all of the recorded signals.

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  Figure 9. (a) Box plot of EBR in Manual, ADAS1, and ADAS2 scenarios; (b) box plot of beta power in Manual, ADAS1, and ADAS2 scenarios. The red lines correspond to the medians, the boxes correspond to the first and third quartiles, the whiskers correspond to the values based on the Interquartile Range (IQR) computation, and the red plus sign markers correspond to the outliers. The green asterisks refer to the p-values computed using t-tests.

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  Figure 10. (a) Box plot of EBR among subjects in Manual and ADAS scenarios; (b) box plot of beta power; (c) box plot of SPR RMS; (d) box plot of HR. The green asterisks refer to the p-values computed using t-tests.

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  Figure 11. Box plot of the CP parameter (SPR RMS × mean HR × beta power/EBR, with SPR in mV, HR in Beats Per Minute, beta power in μV2, and EBR in Blinks Per Minute) among subjects in the Manual and ADAS scenarios. The red lines correspond to the medians, the boxes to the first and third quartiles, the whiskers to the values based on the Interquartile Range (IQR) computation, and the plus sign markers to the outliers. The green asterisks refer to the p-values computed with the Wilcoxon test.