Table 1. Results of ANCOVAs for the changes in heart rate and HRV in reactivity.
| Variables | Analysis | ||
|---|---|---|---|
| Group effect | |||
| F(1,38) | p | ηp2 | |
| HR | 39.93 | < .001 | .51 |
| RMSSD | 2.03 | .16 | .05 |
| lnRMSSD | 5.54 | .02 | .13 |
| pNN50 | 3.09 | .09 | .08 |
| HF | 2.17 | .15 | .05 |
| lnHF | 5.02 | .03 | .12 |
| LF | 2.39 | .13 | .06 |
| lnLF | 10.81 | .00 | .22 |
| SD2 | 4.78 | .04 | .11 |
Note. ANCOVA: the first 4 minutes of the first experimental block as the dependent variable, Group as a fixed factor and the 4-minute-long resting period before the experiment as a covariate. Group: group of participants in the Gatekeeper task group and in the Documentary-viewing group.