Most studies that I know of use yellow text on blue background (though with different hues).
This choice is mostly motivated by tradition ("We always did it like that. Never touch a running system"). But is this combination really the best one?
I have found a number of studies about color combinations and readability. Some suggest that black text on white background is the best, others say white on blue, etc.
I imagine that there are specific requirements for EEG studies as they are regularly run in dim lit rooms. So a completely bright white screen maybe not the best idea, I think.
It surely does make a difference if the task is dependent on, e.g., quick word recognition or reading a short story.
And what about flat screens vs. CRT screens? Are there different optimal color combinations for these screen types?
Is there any general optimal combination?