| Neurotransmitter | T-Test Comparisons | ||
| P-NPa | P-NSb | NP-NSc | |
| Serotonin | 0.0009456* | 3.034E-08* | 0.0316477* |
| Glutamate | 0.462012 | 0.1545891 | 0.2408662 |
| Histamine | 0.0258175* | 2.844E-09* | 0.0018546* |
| Norepinephrine | 0.037042315* | 4.85187E-08* | 0.007690843* |