Pyschologist Lisanne Bainbridge, in ìIronies of Automation,î4
and as quoted by James Reason,5
states that: ìSkills need to be practised continuously in order to preserve them. Yet an automatic
system that fails only very occasionally denies the human operator the opportunity to practice
skills that will be called upon in an emergency. Thus, operators can become de-skilled in just
those abilities...î
The report is here
http://tsb.gc.ca/eng/rapports-report...0/a04w0200.pdf