Figure 4.

The step-by-step procedure of the alignment technique. First, the setpoint is chosen by segmenting the first signal in a set from 200–600 ms post-stimulus. Subsequent trials are then incrementally segmented in 400 ms pieces starting at 100 ms post-stimulus, with a 2 ms shift each increment. The correlation coefficient is calculated for each increment, and the level of shift that produces the highest coefficient value is selected as the ‘aligned’ 400 ms segment for analysis. This process is repeated for each trial within a set until each trial is aligned to the setpoint.