DB6 - the attitude indicator becomes the primary attitude reference in IMC - confirming that the AI/AH indication is correct is still achieved by scanning the relevant instrument.
IF intro - easiest pre-flight brief there is:-
"OK Bloggs - remember all that Lookout - Attitude - Instruments stuff we taught you way back? Well now you won't have to lookout (ATC will look after that) and you can imagine that the only view of the world outside that you're going to get is the little hole I've cut in the instrument panel - it's called an Artificial Horizon - everything else you'll do today will be by using exactly the same techniques which you've been using before in VMC. Questions? No? Why am I still looking at you - WALK!"