While many studies have investigated the neuroscience behind how an animal learns to achieve a goal, such as obtaining water when thirsty, none have understood how animals choose between a number of competing needs - until now. A study, published Sept. 27 in the journal Nature, used advanced techniques developed by the researchers to track the brain's dopamine reward system and found - for the first time ­- this system flexibly retunes toward the most important goal when faced with multiple competing needs.

https://www.miragenews.com/when-needs-compete-love-trumps-thirst-1093050/

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