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Spline Topography Maps (New – Repeated, 50 ms epochs). 3. 2. 1. 0. -1. -2. -3.
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Spline Topography Maps (New – Repeated, 50 ms epochs) 3 2 1 0 -1 -2 -3 Supplementary Figure. Grand average ERPs for Normal Old, MCI Stable and MCI Converter groups to new semantically congruous words (solid lines), and new incongruous words (dotted lines) at Year 1 (left side) and Year 2 (right side). The “N400 congruity effect”, which normally shows smaller N400s to congruous words, is indicated at WR (shaded between 300 and 500 ms). Spherical spline topographical maps (in color, center) illustrate the N400 congruity effect (ERPs to incongruous minus congruous words) in consecutive 50 ms epochs for Normal Old (left) and MCI Stable (left middle) groups at Year 1, and MCI Converters at Year 1 (right middle) and Year 2 (right).