Driving research has recently seen a surge in the collection and use of physiological measurements. This use of physiological data is often part of an attempt to either measure cognitive load or detect affective states. While these methods are becoming more popular it seems that many driving researchers are still unsure of the best methods of data collection and analysis. This discussion panel will center around a question and answer session between the audience and experts in techniques for the collection and analysis of physiological measures in the driving research fields to help researchers increase their productivity in this space and provide a forum for frank discussion on methods in the area.