Table 4.
Variation in brain monoamines explained by Cold Stress and Environmental Complexity.
| Cold Stress | Environmental Complexity | |||||
|---|---|---|---|---|---|---|
| χ2 | df | p | χ2 | df | p | |
| Norepinephrine | ||||||
| Ht | 0.53 | 1 | 0.47 | 2.18 | 1 | 0.14 |
| Tel | 0.62 | 1 | 0.43 | 1.05 | 1 | 0.31 |
| Mes | 1.74 | 1 | 0.27 | 1.62 | 1 | 0.20 |
| Ot | 1.52 | 1 | 0.22 | 0.97 | 1 | 0.33 |
| Dopamine | ||||||
| Ht | 0.00 | 1 | 0.99 | 0.39 | 1 | 0.53 |
| Tel | 0.87 | 1 | 0.35 | 2.08 | 1 | 0.15 |
| Mes | 3.49 | 1 | 0.06 | 0.56 | 1 | 0.45 |
| Ot | 3.68 | 1 | 0.06 | 1.23 | 1 | 0.27 |
| Serotonin | ||||||
| Ht | 2.52 | 1 | 0.11 | 1.21 | 1 | 0.27 |
| Tel | 0.85 | 1 | 0.36 | 2.13 | 1 | 0.15 |
| Mes | 1.49 | 1 | 0.22 | 2.16 | 1 | 0.14 |
| Ot | 1.56 | 1 | 0.21 | 0.62 | 1 | 0.43 |
| Dopamine turnover rate | ||||||
| Ht | 1.21 | 1 | 0.27 | 0.38 | 1 | 0.54 |
| Tel | 0.11 | 1 | 0.74 | 0.20 | 1 | 0.65 |
| Mes | 0.38 | 1 | 0.54 | 0.00 | 1 | 0.97 |
| Ot | 3.07 | 1 | 0.08 | 1.12 | 1 | 0.29 |
| Serotonin turnover rate | ||||||
| Ht | 0.05 | 1 | 0.83 | 0.13 | 1 | 0.72 |
| Tel | 0.09 | 1 | 0.77 | 0.01 | 1 | 0.93 |
| Mes | 3.20 | 1 | 0.07 | 2.65 | 1 | 0.10 |
| Ot | 1.33 | 1 | 0.24 | 2.38 | 1 | 0.12 |
Ht – Hypothalamus/thalamus, Tel – Telencephalon, Mes – Mesencephalon, Ot – Optic tectum.