Table 2.
Effects of the Stroop test and the mental arithmetic test on the EEG and HRV features.
| Feature | Stroop Test (S1) | Rest (R1) | Arithmetic Test (S2) | Rest (R2) |
|---|---|---|---|---|
| nLAP | 15.29 (±4.19) | 12.22 (±3.64) | 14.14 (±3.53) | 13.21 (±3.22) |
| nRAP | 14.11 (±3.63) | 11.85 (±3.60) | 12.88 (±3.00) | 12.47 (±3.16) |
| nLBP | 27.37 (±9.11) | 21.62 (±9.09) | 22.61 (±7.63) | 20.42 (±8.53) |
| nRBP | 25.60 (±9.83) | 20.88 (±8.42) | 21.43 (±7.71) | 19.50 (±9.47) |
| DPA | 2.32 (±4.52) | 0.65 (±2.01) | 1.78 (±4.63) | 1.16 (±2.88) |
| TPA | −0.81 (±3.84) | 0.76 (±3.47) | −1.80 (±2.85) | 0.59 (±2.55) |
| APA | −5.87 (±2.33) 1,2 | −2.05 (±1.51) | −6.16 (±2.14) 1,2 | −3.11 (±1.90) |
| BPA | −5.95 (±6.76) | −2.07 (±4.37) | −4.66 (±5.40) | −3.44 (±4.31) |
| mRR | 733.16 (±109.41) | 719.31 (±116.85) | 712.37 (±97.87) | 735.24 (±100.15) |
| SDRR | 74.74 (±58.37) | 77.48 (±38.97) | 68.93 (±49.41) | 75.20 (±47.89) |
| RMSSD | 66.36 (±54.69) | 72.48 (±36.27) | 63.94 (±47.09) | 69.77 (±43.25) |
| nLF-HRV | 10.89 (±3.35) | 10.03 (±2.88) | 10.38 (±2.25) | 9.59 (±1.92) |
| nHF-HRV | 11.63 (±4.59) | 13.71 (±6.51) | 10.20 (±3.29) | 13.72 (±6.16) |
| LF/HF | 97.15 (±14.26) 1,2 | 79.04 (±16.68) | 105.93 (±18.34) 1,2 | 76.95 (±18.72) |
Data are expressed as a mean ± standard deviation. 1 Significant differences between the stress test and rest1 (R1 versus S1 and R1 versus S2) (p < 0.05). 2 Significant difference between the stress test and rest2 (R2 versus S1 and R2 versus S2) (p < 0.05).