Table 1.
Statistical analysis of ERF activity to the emotional expression as a function of condition and post-expression onset time interval
| 100–400 | 400–700 | 700–1000 | 1000–1300 | 1300–1600 | 1600–1900 | 1900–2200 | 2200–2500 | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bilateral posterior | |||||||||||||
| Emotion (Emo) | n.s. | F = 6.62 P < 0.05 | F = 8.72 P < 0.05 | F = 5.69 P < 0.05 | n.s. | n.s. | n.s. | n.s. | |||||
| Social attention (Soc) | n.s. | n.s. | n.s. | n.s. | n.s. | n.s. | n.s. | n.s. | |||||
| Soc × Emo | n.s. | n.s. | n.s. | n.s. | n.s. | n.s | n.s. | n.s. | |||||
| Soc × Emo × Hem | F = 4.93 P < 0.05 | n.s. | n.s. | F = 5.17 P < 0.05 | F = 5.35 P < 0.05 | F = 5.79 P < 0.05 | F = 5.11 P < 0.05 | n.s. | |||||
| Left posterior | |||||||||||||
| Emo | n.s. | F = 6.24 P < 0.05 | F = 4.9 P < 0.05 | n.s. | n.s. | n.s. | n.s. | – | |||||
| Soc × Emo | n.s. | n.s. | n.s. | F = 8.32 P < 0.05 | F = 8.24 P < 0.05 | F = 8.97 P < 0.05 | F = 6.23 P < 0.05 | – | |||||
| Emo (mutual) | n.s. | – | – | F = 6.41 P < 0.05 | F = 5.74 P < 0.05 | F = 8.62 P < 0.05 | F = 4.69 P < 0.05 | – | |||||
| Emo (deviated) | n.s. | – | – | n.s. | n.s. | n.s. | n.s. | – | |||||
| Right posterior | |||||||||||||
| Emo | n.s. | F = 4.35 P = 0.057 | F = 10.72 P < 0.01 | F = 6.24 P < 0.05 | n.s. | n.s. | n.s. | – | |||||
| Soc × Emo | n.s. | n.s. | n.s. | n.s. | n.s. | n.s. | n.s. | – | |||||
| Right anterior | |||||||||||||
| Emotion (Emo) | n.s. | F = 4.4 P = 0.056 | n.s. | n.s. | n.s. | n.s. | n.s. | n.s. | |||||
| Social Attention (Soc) | F = 9.08 P < 0.01 | F = 13.9 P < 0.01 | F = 11.86 P < 0.01 | F = 21.61 P < 0.001 | F = 10.76 P < 0.01 | n.s. | F = 6.09 P < 0.05 | F = 7.09 P < 0.05 | |||||
| Soc × Emo | n.s | n.s. | F = 5.11 P < 0.05 | F = 15.68 P < 0.01 | F = 13.65 P < 0.01 | F = 12.66 P < 0.01 | F = 21.58 P < 0.001 | F = 38.03 P < 0.001 | |||||
| Emo (mutual) | n.s. | F = 5.24 P < 0.05 | F = 12.51 P < 0.01 | F = 14.50 P < 0.01 | F = 19.99 P < 0.001 | F = 16.40 P < 0.01 | F = 14.85 P < 0.01 | F = 24.43 P < 0.001 | |||||
| Emo (deviated) | n.s. | n.s. | n.s. | n.s. | n.s. | n.s. | n.s. | F = 5.38 P < 0.05 | |||||
| Soc (angry) | n.s. | F = 21.2 P < 0.001 | F = 29.79 P < 0.001 | F = 28.70 P < 0.001 | F = 19.5 P < 0.001 | F = 13.6 P < 0.01 | F = 20.08 P < 0.001 | F = 39.49 P < 0.001 | |||||
| Soc (happy) | n.s. | n.s. | n.s. | n.s. | n.s. | n.s. | n.s. | n.s. | |||||
Notes: Repeated measures ANOVAs were performed over bilateral posterior and right anterior sensors in each of the eight 300-ms time windows. The bilateral posterior analysis had three within-subjects factors: social attention (Soc), emotion (Emo) and hemisphere (Hem). The right anterior analysis had two within-subjects factors: social attention (Soc) and emotion (Emo). F- and P-values are reported when significant. Planned comparisons were performed when significant main effects or interactions were observed. Emo (mutual) and Emo (deviated) correspond to the effects of emotion under mutual and deviated attention conditions, respectively. Soc (angry) and Soc (happy) correspond to the effects of social attention for the angry and happy emotions, respectively. n.s. = not significant.