Phase 2 performance. (A) Training trial (light gray) and test trial (dark gray) performance shown for NEW and FAMILIAR conditions (i.e., performance averaged across all blocks in phase). (B) Training trial (light gray) and test trial (dark gray) performance shown for phases 1 and 2 (i.e., performance averaged across all blocks in a phase). (C) Test trial performance as a function of symbolic distance, NEW (light gray), FAMILIAR (dark gray). (D) Performance on hierarchy recall test in NEW and FAMILIAR conditions. See Materials and Methods for scoring scheme. Note, chance performance has mean 26 errors (SD 6) based on simulation (involving 1000 randomly generated hierarchies). Data averaged across all 30 participants. Error bars reflect SEM.
