Chapter 4How low is too low?
OVERVIEW
On stage 1 of our journey, we reviewed research that shows driving automation significantly reduces mental workload, and that this consequent underload can be detrimental to performance. We also hypothesised a link between attentional capacity and underload as a mechanism for this effect, which we termed malleable attentional resources theory (MART). Now we move on to the next major stage which takes us through a series of empirical studies to test MART. In the first experiment, presented in this chapter, 30 participants drove four automation conditions (manual, adaptive cruise control, lane centring, and adaptive cruise control plus lane centring) in a medium-fidelity driving ...
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