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(A) Eyetracking data for trials where three patients with PCA made errors naming flanked letter stimuli across different conditions of spacing/flanker (Tasks 2–4). Heat maps for Participants 1 and 2 show total maximum fixation duration within an area averaged across trials; individual fixation duration is shown for Participant 3. (B) Accuracy and naming latency data for letter, shape and number flankers in both spatial conditions. Rts = reaction time; Con = condensed; Spa = spaced.
