Table 2.
Correlations between all variables.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | |
|---|---|---|---|---|---|---|---|---|---|
| 1. Mean RT | |||||||||
| 2. SD RT | .86 *** | ||||||||
| 3. Intelligence | −.29 ** | −.30 ** | |||||||
| 4. TUT | −.12 | −.27 * | .15 | ||||||
| 5. Q-SMW | −.11 | −.04 | .09 | .30 ** | |||||
| 6. MRT | .31 ** | .32 ** | −.27 * | −.03 | −.11 | ||||
| 7. P1 amplitude | −.11 | −.06 | .03 | −.02 | .06 | −.22 * | |||
| 8. P3 amplitude | .03 | .03 | −.05 | .01 | −.07 | −.02 | .27 * | ||
| 9. Alpha power | −.18 | −.16 | .03 | −.11 | −.13 | .06 | .06 | .02 | |
| 10. Theta power | −.18 | −.19 | .18 | .09 | .09 | .03 | −.09 | −.16 | −.05 |
Note: Mean RT = mean reaction times (340 trials of each subject were included), SD RT = standard deviation of reaction times (340 trials of each subject were included), TUT = mean rate of task-unrelated thoughts, Q-SMW = mean score in the questionnaire for spontaneous mind wandering, MRT = response variability in the metronome response task, P1 amplitude = mean amplitude of occipital P1, P3 amplitude = mean amplitude of centro-parietal P3, Alpha power = mean pre-fixation cross alpha power, Theta power = mean post fixations cross theta power, * p < .05, ** p < .01, *** p < .001.