Procedure, process, and behavior in Pavlovian fear conditioning. A, Schematic of Pavlovian fear conditioning in which a single procedure (gray) engages a single internal process (white), to elicit a single behavioral outcome (freezing, red). B, Schematic of Pavlovian fear conditioning in which different procedures (black vs gray), engage unique and overlapping processes (abstract patterns), to elicit (triangles) or inhibit (circles) a suite of behaviors (red represents freezing; cyan represents reward seeking; green represents running).