I agree whole heartedly with Alf, 411a and JT.
In the older aircraft interpretation of the core information was generally taught well. The selective radial scan coupled with a three dimential picture served many well. The main problem was when the 3 dimentional mental picture broke down.
Many of us were worried about the glass cockpit presenting too much information, and it often does. The ability to revert to the basic scan is a wonderful skill. I recently experienced a spider bieng ill on the MFD whilst in the sim, the TRE (who was even older than me!) totally lost SA whilst I reverted to the selective radial scan and followed the old fashioned needle which worked a treat.
A pilot can loose SA in any cockpit. Good basic skills training is what will save the day.