“…The technology has improved in accuracy and usefulness [ 39 , 40 , 41 ], enabling widespread application. Examples of areas of application are health and safety [ 36 ], retail [ 42 , 43 ], medical [ 44 , 45 , 46 ], education [ 47 , 48 , 49 ], neuroscience and psychology [ 50 , 51 ], marketing and advertisement [ 52 ], conservation and animal welfare [ 53 ], construction [ 54 ], automotive [ 55 ], aerospace [ 54 , 56 ], maritime [ 54 ], consumer electronics [ 57 , 58 ], tourism [ 59 ] and security [ 60 ]. Eye tracking helps illuminate the visual processes of perception [ 36 , 61 ], task-specific human behaviour [ 62 ] and cognitive processing during complex tasks [ 62 , 63 ].…”