Threshold
A boundary or crossing is visible or strongly implied: doorway, ramp, corridor mouth, gate, platform edge.
Counter-case: A self-contained room with no sense of before/after.
defining trait
Recognition system
Traits Atlas
Twelve compact patterns for noticing threshold logic, familiar displacement, vacancy, repetition, wayfinding, temporal drift, scale and edge conditions.
EXIT →Authored diagram · not documentary media
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Browse by what the cue is doing.
Most entries are editorial synthesis. “Near-normal anomaly” additionally cites Diel & Lewis (2022) for the narrower relationship between familiar-pattern deviation and uncanniness.
Transit without transit
A space built for movement is shown at a pause: hallway, concourse, stair, bridge, road shoulder.
Counter-case: A destination space functioning normally.
visual signal
Familiar displacement
Ordinary spatial grammar remains recognizable while one contextual cue is missing, delayed or oddly shifted.
Counter-case: Pure fantasy with no familiar baseline.
interpretive range
Vacancy as context
Human absence matters because the setting normally predicts occupancy or activity.
Counter-case: An empty place where emptiness is expected and carries no transition.
composition
Repetition
Doors, lights, tiles, windows, columns or lanes create rhythm that extends beyond easy closure.
Counter-case: Random clutter without directional rhythm.
composition
Interrupted wayfinding
Signs, exits, arrows or vanishing points promise orientation but do not fully resolve the destination.
Counter-case: Clear signage that simply explains where to go.
composition
Temporal drift
Lighting, decor, maintenance state or technology suggests a time slightly out of sync with the viewer’s present.
Counter-case: A clearly dated historical reconstruction.
interpretive range
Flat or suspended light
Even fluorescent, overcast, sodium or pool-like illumination can suppress a normal day/night cue.
Counter-case: Dramatic cinematic lighting alone.
materials/media
Scale slippage
A passage, room or repeated module feels too long, too wide, too low, too empty, or too uniform for its expected use.
Counter-case: Any large building photographed normally.
scale
Edge zone
The subject sits between programs: lobby and street, parking deck and elevator, hotel room and corridor, indoors and outdoors.
Counter-case: A single-purpose center of activity.
defining trait
Trace without person
Chairs, carts, footprints, lit signs or operating systems imply recent or expected users who are not present.
Counter-case: A pristine abstract space with no human-use cues.
visual signal
Near-normal anomaly
A small structural or contextual deviation makes an otherwise plausible place feel difficult to categorize.
Counter-case: Obvious horror props or impossible geometry doing all the work.
contrast case