With fixed images and one visit, the 95% interval included zero for the gain in P7/P8 face score correlation from shared images at 130–200 ms in 40 ERP CORE adults

In 40 adults from the ERP CORE N170 task, the mean P7/P8 face score correlation was 0.58881 for shared images and 0.57416 for separate images at 130 to less than 200 ms. The estimated gain was 0.01464, with an approximate 95% person bootstrap interval from -0.00474 to 0.04128. The interval includes zero, so the primary test did not establish a positive gain; it also does not establish equal correlations. The score was intact face minus car, minus scrambled face minus car. The comparison used one visit, a fixed image collection, artifact rules, and 2,048 partitions. The study does not account for new images or visits, establish a neural mechanism, validate a clinical score, or measure repeatability across visits.

EEG · ERP CORE · N170 · stimulus sampling · split-half correlation · image reliability