Table 1.
Experiment 2: mean correlations of hybrid ICA-seed-based maps with maps from task-related GLM, over the five target (nonseed) fMRI data sets. “Same” indicates mean correlation of hybrid method FC maps with task-related GLM derived from the same fMRI dataset. “Seed” indicates mean correlation of hybrid method FC maps with task-related GLM map from Run 3's fMRI dataset, the seed source.
| Source of time course regressor(s) | Mean correlation with task-related map (95% Confidence Interval) | Same = Seed Null Hypothesis Test | |||
|---|---|---|---|---|---|
| Same | Seed | t | df | P | |
| Single voxel (SV) | 0.71 (0.63–0.78) | 0.23 (0.15–0.31) | 11.3 | 4 | <.001 |
| Average over 5 voxels (FV) | 0.71 (0.64–0.77) | 0.23 (0.15–0.30) | 15.2 | 4 | <.001 |
| Average over 118 voxels (MV) | 0.79 (0.75–0.83) | 0.33 (0.28–0.38) | 19.1 | 4 | <.001 |
| Regression against 1 spatial map (DRS) | 0.72 (0.66–0.77) | 0.28 (0.21–0.35) | 11.5 | 4 | <.001 |
| Regression against all spatial maps (DRA) | 0.74 (0.69–0.79) | 0.40 (0.39–0.41) | 8.7 | 4 | .001 |