Suppose you recognize one student—call her Anna—from a prior course in which Anna either excelled or did poorly. Again, you escape identification by your indexed awareness that Anna this term, this course is different from Anna that term, that course. Not identifying, you both expand and sharpen your apprehension of "students" with an awareness rooted in fresh silent-level observations. Autoassociative memory in the memory-prediction model describes neural operations in mammalian brains generally.