Table 3.
Correlation coefficient between CAEP and HRV after the phonological and semantic tasks.
| Variable | Phonological | Semantic | ||
|---|---|---|---|---|
| R | p | R | p | |
| Lat N1 | ||||
| RMSSD | 0.2134 | 0.353 | 0.4660 | 0.033 |
| pNN50 | 0.1315 | 0.570 | 0.4430 | 0.044 |
| HF (ms²) | −0.0029 | 0.989 | 0.3703 | 0.098 |
| SD1 | 0.2134 | 0.353 | 0.4660 | 0.033 |
| Amp N1 | ||||
| RMSSD | −0.2208 | 0.336 | −0.2935 | 0.196 |
| pNN50 | −0.1345 | 0.561 | −0.3115 | 0.169 |
| HF (ms²) | −0.0325 | 0.888 | −0.2260 | 0.324 |
| SD1 | −0.2208 | 0.336 | −0.2935 | 0.196 |
| Lat P2 | ||||
| RMSSD | −0.0058 | 0.979 | 0.1059 | 0.647 |
| pNN50 | −0.0312 | 0.893 | 0.1367 | 0.554 |
| HF (ms²) | −0.0806 | 0.728 | −0.0182 | 0.937 |
| SD1 | −0.0058 | 0.979 | 0.1059 | 0.647 |
| Amp P2 | ||||
| RMSSD | 0.2403 | 0.294 | −0.0636 | 0.784 |
| pNN50 | 0.2014 | 0.381 | 0.7841 | 0.696 |
| HF (ms²) | 0.1306 | 0.572 | −0.0429 | 0.853 |
| SD1 | 0.2403 | 0.294 | −0.0636 | 0.784 |
| Lat N2 | ||||
| RMSSD | −0.1086 | 0.639 | 0.2912 | 0.200 |
| pNN50 | −0.1191 | 0.607 | 0.3285 | 0.146 |
| HF (ms²) | −0.0296 | 0.898 | 0.1371 | 0.553 |
| SD1 | −0.1086 | 0.639 | 0.2912 | 0.200 |
| Amp N2 | ||||
| RMSSD | 0.1390 | 0.548 | −0.1351 | 0.559 |
| pNN50 | 0.1890 | 0.411 | −0.1503 | 0.515 |
| HF (ms²) | 0.1208 | 0.601 | −0.1598 | 0.489 |
| SD1 | 0.1390 | 0.548 | −0.1351 | 0.559 |
| Lat P3 | ||||
| RMSSD | −0.6153 | 0.003 | 0.3241 | 0.151 |
| pNN50 | −0.5720 | 0.006 | 0.3796 | 0.089 |
| HF (ms²) | −0.4985 | 0.02 | 0.3001 | 0.186 |
| SD1 | −0.6153 | 0.003 | 0.3241 | 0.151 |
| Amp P3 | ||||
| RMSSD | 0.3156 | 0.163 | −0.1831 | 0.426 |
| pNN50 | 0.3339 | 0.139 | −0.1860 | 0.419 |
| HF (ms²) | 0.3436 | 0.127 | −0.2299 | 0.316 |
| SD1 | 0.3156 | 0.163 | −0.1831 | 0.426 |
AMP: amplitude; LAT: latency; RMSSD: root-mean square of differences between adjacent normal RR intervals in a time interval; pNN50: percentage of adjacent RR intervals with a difference of duration greater than 50 ms; HF: high frequency; ms: milliseconds; SD1: standard deviation of the instantaneous variability of the beat-to-beat heart rate.