I want to know the answer to the following question:
What classification of chemicals do dopamine, serotonin and noradrenaline belong to?
All the background I'm provided with is that "Based on discoveries made through neural mapping of the limbic system, the neurobiological explanation of human emotion is that emotion is a pleasant or unpleasant mental state organized in the limbic system of the mammalian brain.". Is that enough to answer the question?
Answer: no