Fig. 2.
Excursion test for dynamic kernel canonical correlation analysis (DKCCA) correctly identifies significant regions of cross-correlation. Representative results after bootstrap and excursion test for trials from simulations with σnoise = 0.2, 0.6, 1, 1.2, 1.4, and 2 (left to right, top to bottom). y-axis is time (ms) in section X; x-axis is time (ms) in section Y. Trial length: 500 ms. True lag of 20 ms begins in each trial between 300 and 310 in section Y (280 and 290 in section X) and lasts ~80 ms. Nonzero values are excess above cutoff. Zero values indicate time-pair correlation that was at cutoff or below.