We are all talking about cognitive impairment. So are we referring to cognitive impairment due to spatial disorientation? If so this is a subject of a few experiments and papers from the beginning of this century but it appears that it was able to be overcome by regular exposure to the causes I. e. repeated exposure to the manoeuvres of a display sequence etc.
Or is this a different type of cognitive impairment, due to fatigue or some other cause?
Was this established in the trial?