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. 2014 Jul 1;9(7):e100318. doi: 10.1371/journal.pone.0100318

Table 3. Linear Mixed Models for the Physiological Dependent Variables in Experiment 2.

Estimated Marginal Means (SE)
Model Variables 1 2 3 4 df F p
Zygomaticus Major EMG activity (ln[µV])
Condition 1.46 (0.068) 1.491 (0.069) 1.699 (0.068) 1.721 (0.068) 3,206.116 29.538 <.001
Gender 1.769 (0.081) 1.417 (0.101) 1,40.898 7.364 0.01
Condition×Gender 1.56 (0.085) 1.668 (0.087) 1.928 (0.085) 1.918 (0.085) 3,206.116 5.26 0.002
1.36 (0.106) 1.314 (0.107) 1.469 (0.106) 1.524 (0.106)
Corrugator Supercilii EMG activity (ln[µV])
Condition 1.063 (0.027) 1.074 (0.028) 1.021 (0.027) 0.991 (0.027) 3,211.781 13.552 <.001
Gender 0.984 (0.032) 1.091 (0.04) 1,41.149 4.303 0.044
Condition×Gender 1.008 (0.034) 1.007 (0.035) 0.959 (0.034) 0.962 (0.034) 3,211.781 2.619 0.052
1.119 (0.042) 1.142 (0.043) 1.082 (0.042) 1.021 (0.042)
Orbicularis Oculi EMG activity (ln[µV])
Condition 1.606 (0.05) 1.626 (0.051) 1.817 (0.05) 1.828 (0.05) 3,208.14 34.546 <.001
Gender 1.854 (0.06) 1.585 (0.074) 1,40.977 7.952 0.007
Condition×Gender 1.69 (0.063) 1.75 (0.065) 1.989 (0.063) 1.985 (0.063) 3,208.14 3.994 0.009
1.523 (0.078) 1.502 (0.08) 1.646 (0.078) 1.67 (0.078)
Skin conductance level (ln[µS])
Condition 2.204 (0.048) 2.205 (0.049) 2.227 (0.048) 2.231 (0.048) 3,222.169 3.317 0.021
Gender 2.244 (0.06) 2.19 (0.075) 1,41.061 0.318 0.576
Condition×Gender 2.24 (0.061) 2.243 (0.061) 2.243 (0.061) 2.251 (0.061) 3,222.169 1.96 0.121
2.169 (0.076) 2.167 (0.076) 2.212 (0.076) 2.212 (0.076)
Heart rate (BPM)a
Condition 74.02 (0.96) 74.079 (0.969) 74.581 (0.958) 75.747 (0.957) 3,220.154 10.354 <.001
Gender 74.438 (1.174) 74.776 (1.464) 1,82.078 0.032 0.858
Condition×Gender 73.311 (1.203) 73.778 (1.216) 74.77 (1.198) 75.893 (1.197) 3,220.154 3.029 0.03
74.729 (1.497) 74.381 (1.509) 74.392 (1.497) 75.601 (1.494)

Note. Intercept is left out as uninformative from all models. Means 1 through 4 correspond to Cooperative, Cooperative and Competitive, Competitive, and Competitive Without Computer. Means 1 and 2 correspond to Male and Female for Gender. For Gender×Condition interactions, the rows denote Male and Female and the columns denote the Condition. The p-values significant after controlling the false discovery rate are bolded.

a

Heart rate run with independent members.