Fig. 1.

Experimental design and stimuli. In blocked-design runs (A), participants saw 15-sec blocks of English words, consonant strings, Hebrew words, and line drawings interleaved with blocks of fixation only and either fixated passively (half the runs) or responded whenever there was an immediate repeat of the same stimulus. In event-related runs (B), participants saw English words, consonant strings, digit strings, Hebrew words, Chinese characters, and line drawings on interleaved trials and reported whether the stimulus was moving downward or to the right.