Attention arises through a host of complex processes that contribute to consciousness itself.
The confusing nomenclature is probably a byproduct of the fact that attention is a complex process.
It arises through a number of other complex interacting processes that contribute much to consciousness itself. Some of these major players are: orientation, executive control, arousal, and short-term memory, to mention a few.
Orientation is an awareness of self and the elements of causality in the environment.
Confusion and problem solving issues are the by-products of diminished orientation. These typically occur at lower levels of consciousness.
I have seen, for instance, a head-trauma patient in a hospital setting unquestioningly discuss a bizarre object, like a piano, that she perceived to be floating on the ceiling.
This would be an example of a lack of an awareness of causality.