Figure 2: Paired t-tests for the response II variables (maximum R/L lane departures) in each phase of the cognitively, emotionally, and sensorimotorically loaded drives wrt the no-stressor drive; they are accompanied by visualizations of the cars’ itineraries in each stressful drive.

From: Dissecting Driver Behaviors Under Cognitive, Emotional, Sensorimotor, and Mixed Stressors

Figure 2

Where color boxplots are closer to the R/L boundaries wrt grey boxplots, the stressor had a negative effect.