SimilarityRank
dopamine 0.861 48767
neurotransmitter 0.840 51284
cortisol 0.765 61115
glutamate 0.763 85465
melatonin 0.732 64514
hormone 0.710 11559
oxytocin 0.707 71128
receptor 0.700 11858
the_central_nervous_system 0.688 30904
progesterone 0.667 75969
nitric_oxide 0.664 68359
neuronal 0.658 71428
the_hippocampus 0.657 66791
testosterone 0.656 32561
stress_response 0.654 69086
the_nervous_system 0.653 19946
antidepressant 0.653 40459
estrogen 0.651 36849
cannabinoid 0.651 91163
metabolism 0.648 11719
the_brain 0.644 2459
ion_channel 0.641 79248
secretion_of 0.641 75985
neuron 0.641 8698
fatty_acid 0.637 31744