The RM paradigm consisted of continuous recognition memory tasks with common words or unknown faces, as detailed elsewhere (Kayser et al., 2010). Briefly, words were 320 English nouns and faces were 320 black-and-white photographs (160 male) taken from a college yearbook. A series of word (or face) stimuli were foveally presented for 500 ms (constant 2.5-s stimulus onset asynchrony) with 114 stimuli per block and 4 blocks per task (912 trials total). Participants indicated for each item whether it was new (never presented in the series) or old (presented previously) by pressing one of two buttons on a response pad. Participants were instructed to respond to every stimulus as quickly and accurately as possible. There was no overlap between blocks for item repetitions.
