PMC5733467_01
Experimental protocol. After the study phase, participants were administered one of five interference delay conditions: minimal 1, cognitive, feature-level visual, low-level visual, minimal 2. Following delay, participants completed one of two recognition memory tests: either the forced choice with corresponding foils (FCC) or yes/no (YN). Note that unique stimuli were used in the FCC and YN tasks but are displayed commonly for clarity in the figure. FCC and YN tests were completed in separate testing sessions and in a given session, participants completed all five delay conditions (minimal 1 and 2 were always first and last; the order of the remaining conditions was counterbalanced).
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These stimuli were subjected to the same 20 x 20 pixel block filter as described above (Fig. 2). In the FCC test (Fig. 2), both the target and perceptually similar foil objects were displayed simultaneously, side-by-side. In the YN test (Fig. 2), either the target or foil object was displayed on screen. A stimulus only appeared within its study/test condition, and never in a different condition (i.e., if the green pillow in the example in Figure 2 appeared in the cognitive interference condition, it would never appear in any other condition for that participant).
T1-weighted MRI scans of NC with arrow denoting infarct in the right MDN thalamus, with significant volume loss.
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This damage is greater in the right than left hemisphere, and primarily affected the MDN of the thalamus (Fig. 6).