| Similarity | Rank | |
|---|---|---|
| neurotransmitter | 0.972 | 35288 |
| acetylcholine | 0.920 | 55829 |
| serotonin | 0.919 | 18868 |
| dopamine | 0.909 | 20815 |
| norepinephrine | 0.908 | 48622 |
| excitatory | 0.898 | 83741 |
| receptors | 0.886 | 13875 |
| GABA | 0.869 | 46769 |
| Serotonin | 0.864 | 61679 |
| hypothalamus | 0.861 | 40919 |
| cholinergic | 0.858 | 88546 |
| dopaminergic | 0.855 | 78727 |
| hypothalamic | 0.849 | 92743 |
| Dopamine | 0.846 | 75238 |
| monoamine | 0.840 | 84399 |
| neuronal | 0.836 | 36134 |
| synapses | 0.829 | 47947 |
| brain's | 0.829 | 30990 |
| synapse | 0.828 | 71012 |
| neurons | 0.823 | 15481 |
| glutamate | 0.822 | 44758 |
| adenosine | 0.822 | 62814 |
| adrenergic | 0.819 | 99859 |
| limbic | 0.818 | 57770 |
| histamine | 0.814 | 49266 |