Table 2.
Generalized Linear Mixed Model results.
| Responsible Factor | ||||||
|---|---|---|---|---|---|---|
| Fixation number | Total fixation duration | |||||
| Likelihood ratio test | Likelihood ratio test | |||||
| Fixed factor | AIC a | χ2 | p | AIC a | χ2 | p |
| Analysis comparing the three species | ||||||
| Species and AOI | 491.0 | 106.9 | ||||
| AOI | 547.8 | 72.80 | <0.001 | 93.67 | 34.21 | <0.001 |
| Species | 623.0 | 149.97 | <0.001 | 121.8 | 69.25 | <0.001 |
| Analysis comparing human familiarity | ||||||
| Familiarity and AOI | 172.2 | 46.3 | ||||
| AOI | 168.3 | 4.09 | 0.39 | 27.0 | 1.08 | 0.90 |
| Familiarity | 170.3 | 10.02 | 0.12 | 21.3 | 7.07 | 0.31 |
| Analysis comparing stimuli with and without a hand sign | ||||||
| Hand-sign and AOI | 97.1 | 59.42 | ||||
| AOI | 102.8 | 9.77 | 0.008 | 53.35 | 3.11 | 0.21 |
| Hand-sign | 126.7 | 33.6 | <0.001 | 62.72 | 12.8 | 0.002 |
a AIC = “Akaike Information Criterion,” an index used to compare the fitted models. The model with the lower AIC is preferred.