List the major functions of dopamine in the nervous system?

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Dopamine is a messenger molecule in the brain that allows certain nerve cells to communicate with one another. Underestimated at its discovery, dopamine proved critical to central nervous system functions such as movement, pleasure, attention, mood, and motivation. Dopamine is a neurotransmitter, one of those chemicals that is responsible for transmitting signals between the nerve cells (neurons) of the brain. ... Some, in a part of the brain called the substantia nigra, are the cells that die during Parkinson's disease. Both tyrosine and phenylalanine are naturally found in protein-rich foods like turkey, beef, eggs, dairy, soy and legumes . Studies show that increasing the amount of tyrosine and phenylalanine in the diet can increase dopamine levels in the brain, which may promote deep thinking and improve memory.

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CONCLUSION. Thanks for the answere. 1. Motor control ( via nigrostratal projections) 2. Modulation of short- term memory or working memory( via projectolions from central segmental area to prefrontal cortex). 3.Behavioral reinforcement ( via mesolimbic projections). 4. Hypothalamic regulation of pituitary function( eg ,by inhibiting prolactin secretion). 5. Modulation of brain regions controlling emesis( eg.,area postrema of the medilla)

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