Table 1. ANOVA statistics and Tukey HSD post-hoc test for brain serotonin (5-HT), 5-HIAA, 5-HIAA/5-HT, dopamine (DA), DOPAC, DOPAC/DA, dopamine receptors 1 (D1) and 2 (D2), brain derived neurotrophic factor (BDNF) and proliferating cell nuclear antigen (PCNA) of omission of expected reward (OER) treated and control fish under unstressed and acute stress conditions.
| Treatment effect | Effect of stress | ||||
| ANOVA | Unstressed | Stressed | Control | OER | |
| 5-HT | F (3) = 1.07, p = 0.37 | — | — | — | — |
| 5-HIAA | F (3) = 27.45, p<0.001 | p = 0.99 | p = 0.32 | p <0.001 | p <0.001 |
| 5-HIAA/5-HT | F (3) = 17.89, p<0.001 | p = 0.97 | p = 0.42 | p <0.001 | p <0.001 |
| DA | F (3) = 0.69, p<0.56 | — | — | — | — |
| DOPAC | F (3) = 10.55, p<0.001 | p = 0.57 | p = 0.01 | p = 0.08 | p = 0.001 |
| DOPAC/DA | F (3) = 15.81, p<0.001 | p = 0.7 | p = 0.005 | p = 0.01 | p <0.001 |
| D1 | F 3 = 3.14, p = 0.03 | p = 0.09 | p = 0.23 | p = 0.99 | p = 0.84 |
| D2 | Kruskall-Wallis p = 0.27 | — | — | — | — |
| BDNF | F (3) = 3.04, p = 0.04 | p = 0.03 | p = 0.97 | p = 0.2 | p = 0.88 |
| PCNA | F (3) = 1.54, p = 0.21 | — | — | — | — |