I want to know the answer to the following question:
Along with dopamine, noradrenaline, serotonin, cortisol and oxytocin, what neurotransmitter or hormone influences emotion?
All the background I'm provided with is that "The numerous theories that attempt to explain the origin, neurobiology, experience, and function of emotions have only fostered more intense research on this topic.". Is that enough to answer the question?