How does dopamine control messages as they pass between neurons?

This is a section from my psychology textbook (we're learning about Parkinson's disease):

'Dopamine is needed to control messages as they pass between neurons in the substantia nigra and the striatum (responsible for balance and control of movement). Without enough dopamine, the neurons of the striatum fire uncontrollably, which essentially prevents a Parkinson's disease sufferer from adequately controlling their movement.'

Thanks in advance!!

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  • Anonymous
    1 month ago

    Google; 'neurotransmitter mechanism of action' and then when you have read up about that, google; 'Dopamine mechanism of action'. 

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