In python:

Construct a matrix TC of size 240 6 consisting of six temporal sources using three vectors, 1) onsets arrival vector (AV) = [0,20,0,0,0,0], 2) increment vector (IV) = [30,45,60,40,40,40], and 3) duration of ones = [15,20,25,15,20,25]. For instance, you can generate first TC using these three vectors as AV:IV:N-20 =0:30:220 and ones stay active for 15 samples, and N here is 240. This TC is also shown in Figure 1 (left). Mean center each TC by subtracting its mean and standardize each TC by dividing it by its standard deviation. This will make TCs bias free (centered around the origin) and equally important (have unit variance). Plot all TCs as six subplots. Why not normalize (divide by l-2 norm) the TCs instead of standardizing it?