Ключевые слова: abstract, biochemistry, biology, brain, chemical, chemistry, cns, cognitive, dementia, depression, dopamine, endocrinology, endorphin, formula, frontal, health, hippocampus, hormonal, hormone, human, icon, illustration, isolated, line, medical, medicine, mental, molecular, molecule, neurochemical, neuroscience, neurotransmitter, parkinson, peptide, pleasure, poster, receptor, reward, schizophrenia, science, striatum, structure, symbol, synaptic, system, tegmental, ventral, vta,