I can talk to you about sleep deprivation, because DRDC Toronto has an ongoing research project to assess sleep deprivation. They used a software package called SPSS. They can model the amount of sleep deprivation and relate it to cognitive functioning.
They did a study on long-haul transport pilots, and they finished that study. Right now they're working on submariners. The submariners work six on and six off. They found that was a highly inefficient way of scheduling the submariners' work. They have huge amounts of cognitive impairment because of sleep deprivation.
That's a long explanation to say that there are research projects ongoing right now to assess the effects of sleep deprivation, but they're doing it by MOC or by occupation, and they're picking the high-risk ones, like the long-haul pilots and submariners, and then they're going to go on and delve into the other MOCs.