Table 2.
Results of final LMMs with confounding effects on personality traits and spatial recognition
| Trait | Significant effect | Estimate ± SE | p | |
|---|---|---|---|---|
| Juveniles (week 6 vs. 7) | Activity OF | Trial number | −0.30 ± 0.15 | 0.049 |
| Test date | +0.34 ± 0.11 | 0.005 | ||
| Boldness | Trial number | +0.53 ± 0.15 | <0.001 | |
| Activity YM | Trial number | −0.46 ± 0.18 | 0.017 | |
| Exploration | Observer | +0.51 ± 0.20 | 0.016 | |
| Spatial recognition | None | |||
| Adults (week 12 vs. 24) | Activity OF | Housing condition | +0.99 ± 0.22 | <0.001 |
| Sex | −0.55 ± 0.22 | 0.021 | ||
| Trial number | −0.47 ± 0.15 | 0.005 | ||
| Boldness | Sex | +0.85 ± 0.21 | <0.001 | |
| Activity YM | None | |||
| Exploration | None | |||
| Spatial recognition | None | |||
| Before and after maturation (week 6 vs. 12) | Activity OF | Test Date | +0.33 ± 0.12 | 0.008 |
| Sex | −0.38 ± 0.18 | 0.042 | ||
| Trial number | −0.27 ± 0.12 | 0.025 | ||
| Boldness | Trial number | +0.76 ± 0.13 | <0.001 | |
| Activity YM | Trial number | −0.31 ± 0.14 | 0.032 | |
| Exploration | None | |||
| Spatial recognition | None | |||
| Before and after sexual contact (week 12 vs. 24) | Activity OF | None | ||
| Boldness | Sex | +0.69 ± 0.25 | 0.01 | |
| Trial number | −0.50 ± 0.21 | 0.03 | ||
| Activity YM | None | |||
| Exploration | None | |||
| Spatial recognition | None |
All full models included the individual ID as random factor; sex, trial number and housing condition as fixed factors; body mass, test date and test time as fixed covariates, as well as the interactions sex × test time and sex × body mass
SE standard error, OF Open Field test, YM Y Maze test