中國網浪潮資訊 先前的獲勝經歷，會使之後的勝利變得更加容易——這就是所謂“勝利者效應”。是什麼決定著“勝利者效應”的出現？現在，這一謎團的一角已經被浙江大學求是高等研究院和醫學院神經科學研究中心的胡海嵐研究組揭開。

CNCAO NEWS The previous experience of winning might render next success to be more easier, which is known as "winner effect". What is the deciding effect of the "winner effect"? Now the research group of Hu Hailan in Qiushi Academy for Advanced Studies ande Center for Neuroscience, Zhejiang University ( ZJU ), has uncovered a little of this mystery.

　　北京時間7月14日，頂級期刊《Science》以長文方式線上發表了胡海嵐團隊與合作者的研究文章。通過巧妙的實驗設計，研究人員在雄性小鼠上首次確定了大腦前額葉皮層對社會競爭的動態控制，第一次發現了哺乳動物大腦中“勝利者效應”的神經環路——中縫背側丘腦投射往前額葉皮層的環路。

On July 14 Beijing Time, one of the top journals, Science, published the research article written by Hu Hailan's team and partners online in the way of long text. The researchers initially identified the dynamic control of prefrontal cortex ( PFC ) towards social competition and firstly discovered the neural circuit of "winner effect" in mammals' brains, a loop in the dorsal projection of the dorsal raphe to the frontal cortex, through ingenious experimental designs.

　　他們發現，如果增強小鼠的內側前額葉這一特定腦區的神經活動，就能幫助其在社會競爭中戰勝原先高等級的對手，實現“逆襲”。這樣的逆襲反覆累積到一定程度，小鼠提升的等級就會穩固下來，恰體現出“勝利者效應”。

They found that if enhancing the neural activities in certain area of medial prefrontal cortex ( MPFC ) of the mice, it would help them to beat competitors that were in higher level before in social competition and to achieve "counterattack". And when such counterattacks reached to a certain level after repeated accumulation, the increased level of mice would become steady, which could show the "winner effect".

　　專家表示，這項研究成果為研究社會行為相關的疾病提供了治療思路，並且為在競賽中提高選手成績的行為訓練策略提供了理論依據。

Experts stated that this research achievement provided thinking of treatment for studying diseases which were relevant to social behaviors as well as offering theoretical evidence for the training strategy of improving players' performances in competition.

　　（中國網見習作者 胡金 作者 楊雲寒 翻譯：孫吳琦）

來源： 中國網綜合    | 作者：中國網見習 胡金 楊雲寒 翻譯：孫吳琦    | 責編：胡金    審核：張淵

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