2.6 Measurement of Components Using the Average Time Window
Approach at the Single Trial Level
For each participant, each single trial was also measured using the
Average Time Window (STW) approach to provide a comparison to the STP
approach. A customized MATLAB program (Gavin, 2013) was used to find the
average amplitude for each component in each trial segment, using
pre-defined windows as follows: P1 was 20-70 ms, N1 was 70-130 ms, P2
was 150-250 ms, N2 was 250-320 ms, and P3 was 350-500 ms. Component
latencies are not obtained using this approach, as the voltages of all
data points in the entire window are averaged.