How Does Dopamine as a Hormone Differ as a Neurotransmitter?

Question by Merc: How does dopamine as a hormone differ as a neurotransmitter?
All I know is that dopamine as a hormone stops the production of prolactin but that’s totally unrelated to it as an inhibitory neurotransmitter.

Best answer:

Answer by kt
The effect any neurotransmitter has on a cell depends on the receptor for that transmitter the cell has. Thus, the same transmitter can have an inhibitory effect on one cell, and an excitatory effect on another. However, in general, dopamine as a neurotransmitter acts as a catecholamine – like adrenaline, for which it is a precursor.

For its effects on the brain take a look at this web site:
http://en.wikipedia.org/wiki/Dopamine,
expecially the section titled Functions in the brain.

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