2.3.3 Cognitive test battery

A detailed description of the cognitive test battery consisting of 10 cognition tests can be found in Basner et al., 2015; Moore et al., 2017. Here, we provide a brief overview of each test, where the tests were always performed in the order listed below. Cognition was administered on a fourth generation iPad (Apple, California, United States). The Motor Praxis Task (MP) measured sensorimotor speed. The Visual Object Learning Task (VOLT) assessed the participants’ memory for complex figures. The Fractal 2-Back (F2B) test tested the working memory system. The Abstract Matching (AM) test is a validated measure of the abstraction and flexibility components of executive function. The Line Orientation Test (LOT) is a measure of spatial orientation. The Emotion Recognition Task (ERT) is a measure of facial emotion recognition. The Matrix Reasoning Test (MRT) is a measure of abstract reasoning and consists of increasingly difficult pattern-matching tasks. The Digit-Symbol Substitution Task (DSST) is a measure of complex scanning, visual tracking, and working memory. The Balloon Analog Risk Test (BART) is an assessment of risk-taking behavior. The Psychomotor Vigilance Test (PVT) is a measure of vigilant attention and has been well-established as a tool to detect acute and chronic sleep deprivation and circadian misalignment (Basner et al., 2011).