Mica Endsley is one of the most prominent authors here and is well worth a read. I have an essay floating around somewhere of HIP and SA. She produced some great models of the interactions of SA and HIP which i also have.
“The perception of the elements in the environment within a volume of time and space, the comprehension of their meaning and the projection of their status in the near future” (Endsley, 1988, p.97)
Well msg me if u require more