Sternberg scanning: RT(n) = 400 + 38n ms; RT(4) − RT(1) = 3·38 = 114 ms

Sympy-exact witness of the Sternberg (1966) linear set-size RT scaling on canonical anchor parameters. Setup: a = 400 ms (non-scanning intercept — sensory encoding + response generation + baseline); b = 38 ms/item (per-item…