Table 1.
Estimated parameters of the sudomotor nerve activity across participants for the two experiments. All amplitudes are expressed in sudomotor units, where one unit is defined as the sudomotor burst amplitude that leads to an eSCR, SF, or SCL change of 1 μs peak amplitude. Conditioned and unconditioned reactions (CR and UR) are both expressed in eSCR units, but the ensuing conditioned skin conductance response also depends on the dispersion of the sudomotor burst which is variable for CR and reported separately.
| Experiment 1 |
Experiment 2 |
|
|---|---|---|
| Mean ± SEM | Mean ± SEM | |
| CR− amplitude (units) | 0.37 ± 0.08 | 0.26 ± 0.05 |
| CR+ amplitude (units) | 0.42 ± 0.09 | 0.33 ± 0.09 |
| z-Transformed CR− amplitude (z-units) | 1.19 ± 0.12 | 1.02 ± 0.06 |
| z-Transformed CR+ amplitude (z-units) | 1.30 ± 0.15 | 1.24 ± 0.09 |
| CR− dispersion (SD in s) | 2.14 ± 0.25 | 1.22 ± 0.07 |
| CR+ dispersion (SD in s) | 2.01 ± 0.26 | 1.06 ± 0.06 |
| CR− peak latency (s) | 2.56 ± 0.56 | 0.51 ± 0.06 |
| CR+ peak latency (s) | 2.52 ± 0.66 | 0.88 ± 0.11 |
| UR amplitude (units) | 1.89 ± 0.35 | 1.87 ± 0.32 |
| z-Transformed UR amplitude (z-units) | 8.07 ± 1.34 | 10.72 ± 1.68 |
| UR latency (s) | 1.95 ± 0.14 | 1.75 ± 0.11 |
| SF frequency (SF > 0.1 units, in Hz) | 0.067 ± 0.005 | 0.135 ± 0.008 |
| SF amplitude (SF > 0.1 units, in units) | 0.29 ± 0.01 | 0.29 ± 0.01 |
| SCL change frequency (SCL change > 0.1 units, in changes/trial) | 0.11 ± 0.01 | 0.14 ± 0.01 |
| SCL change amplitude (SCL change > 0.1 units, in units) | 0.17 ± 0.01 | 0.19 ± 0.01 |