“…The research about pilots [ 40–42 , 45 , 47–49 , 51–53 , 58 , 60–62 , 64 , 65 , 67 ], truck drivers [ 50 , 56 , 63 ], and astronauts [ 43 , 44 , 46 , 54 , 55 , 57 , 59 , 66 ] included laboratory studies (e.g. conducted in stimulators) [ 43 , 44 , 53 , 56 , 57 , 59 , 66 ] and field investigations (where data acquisition occurred during normal occupational activities) [ 40–42 , 45–52 , 54 , 55 , 58 , 60–65 , 67 ]. Most pilots were employed by commercial airlines (to transport passengers) [ 40–42 , 45 , 47–49 , 51 , 53 , 60–62 , 64 , 65 , 67 ] with the exception of studies about maritime piloting (to guide ships) [ 52 ] and military transport operations [ 58 ].…”