Table 2.
Experiment 3: Parameter estimates (arbitrary units) for skin conductance responses (mean ± standard error of the mean) for the six experimental conditions. In the present model, a significant intercept refers to the fact that parameter estimates deviate from zero, and shows that an effect was detected across all experimental conditions. (Estimated) SCR peak amplitude in the lower part of the table is reported in μS (mean ± standard error of the mean). The table states uncorrected degrees of freedom, F-values, ɛ-values according to Greenhouse-Geisser, and corrected p-values.
| ISI | 3 s | 9 s | 19 s | Intercept | Picture type | ISI | Interaction | |
|---|---|---|---|---|---|---|---|---|
| Mean ± SEM | Mean ± SEM | Mean ± SEM | F(1, 23) | F(1, 23) ɛ | F(2, 46) ɛ | F(2, 46) ɛ | ||
| SCR (parameter estimate) | Neutral | −1.1 ± 6.2 | 19.0 ± 12.0 | 40.5 ± 15.0 | 6.3* | 5.1* | 6.1* | <1 |
| Aversive | 11.8 ± 5.7 | 22.2 ± 13.4 | 50.0 ± 16.5 | 1 | 0.722 | 0.818 | ||
| Effect of stimulus rating on SCR (parameter estimate) | Neutral | 16.6 ± 10.7 | 0.8 ± 12.8 | 0.3 ± 8.0 | 5.2* | 1.3 | <1 | <1 |
| Aversive | 20.1 ± 15.3 | 20.4 ± 12.8 | 19.8 ± 22.9 | 1 | 0.968 | 0.899 | ||
| SCR (peak-scoring) | Neutral | 0.015 ± 0.003 | 0.014 ± 0.005 | 0.014 ± 0.005 | 16.6** | <1 | <1 | 1.6 |
| Aversive | 0.018 ± 0.006 | 0.009 ± 0.003 | 0.012 ± 0.004 | 1 | 0.990 | 0.853 | ||
| SCR (according to Barry et al., 1993) | Neutral | 0.033 ± 0.005 | 0.027 ± 0.004 | 0.005 ± 0.029 | 51.9** | <1 | 2.0 | 2.2 |
| Aversive | 0.030 ± 0.004 | 0.027 ± 0.004 | 0.029 ± 0.005 | 1 | 0.862 | 0.977 | ||
| SCR (according to Lim et al., 1997) | Neutral | 0.7 ± 0.4 | 0.3 ± 0.1 | 0.3 ± 0.1 | 6.2* | 2.4 | 1.4 | 1.6 |
| Aversive | 1.9 ± 0.9 | 0.7 ± 0.3 | 0.3 ± 0.1 | 1 | 0.565 | 0.690 | ||
*
p < .05.
**
p < .01.