SimilarityRank
serotonin 0.861 59388
neurotransmitter 0.838 51284
glutamate 0.803 85465
cortisol 0.699 61115
oxytocin 0.695 71128
neuron 0.686 8698
the_brain 0.683 2459
cannabinoid 0.672 91163
the_hippocampus 0.668 66791
neuronal 0.667 71428
ion_channel 0.661 79248
synapse 0.659 31235
melatonin 0.658 64514
nerve_cell 0.656 44534
brain_function 0.655 40259
receptor 0.654 11858
astrocyte 0.654 63323
brain_activity 0.647 62315
the_central_nervous_system 0.647 30904
Gaba 0.646 86229
the_cerebellum 0.645 83659
brain_cell 0.643 47809
nitric_oxide 0.639 68359
hippocampus 0.634 95024
testosterone 0.631 32561