Figure 2.

Sequence of events on a trial in the present study (top left), and distances used (bottom right). Fixation cross for 200 ms, followed by the stimulus display (target and any accompanying letters) for 200 ms, followed by a post-mask accompanied by two horizontal bars placed above and below the target location, plus the presentation of two-alternative letters for the 2AFC response. Inter-letter spacing, eccentricity of the closest letter and the central target letter, and theoretical extent of the crowding zone according to Bouma’s law (shaded ellipse) are shown bottom left.