-25-
GIf the mean is computed only for time lags 4-9, then mean percent signal change in the voxel below increases dramatically, from 1.557% (all lags) to 3.086%:
0.750%
1.996%
3.361%
4.590%
4.056%
3.765%
Mean % sig. chg,. (lags 4-9)  = 3.086%
4
5
6
7
8
9