“…Previous human factors research indicates that automation resolves the imprecision and variability of human task performance, but also yields new types of safety concerns. It has been found that a high level of automation can cause out-of-the-loop problems such as complacency, skill degradation, mental underload (when the automation functions reliably), mental overload (when the operator suddenly needs to solve an automation-induced problem), and loss of situation awareness (Bainbridge, 1983;Bibby, Margulies, Rijnsdorp, & Withers, 1975;Endsley & Kiris, 1995;Hancock et al, 2013;Kaber & Endsley, 1997;Parasuraman & Riley, 1997;Vlakveld, 2015), which are issues that have also been implicated in the domain of automated driving (De Winter, Happee, Martens, & Stanton, 2014;Seppelt & Victor, 2016;Young & Stanton, 2002). Recently, a meta-analysis of 18 experiments on human-automation interaction found statistical support for the so-called lumberjack hypothesis, which postulates that as the degree of automation increases, the side effects of automation (e.g., performance impairment if the automation fails) increase as well (Onnasch, Wickens, Li, & Manzey, 2014).…”