PCA solutions derived from the CSD data for patients only (n = 23) or controls only (n = 23), which revealed highly comparable factor structures (correlations between corresponding factor loadings were .95 ≤ r ≤ .99). Because factors 240, 355, and 560 showed robust target/nontarget condition effects across tasks, including those typically attributed to the N2/P3 complex,10,74 the remainder of this report focuses on these three CSD-PCA components.
