当科学家们让实验对象玩一个通过欺骗搭档来赢钱的游戏时，他们注意到来自杏仁核的负面信号开始减少。
When scientists had their subjects play a game in which they won money by deceiving their partner, they noticed the negative signals from the amygdala began to decrease.
信号除了将对象相互连接之外，与事件非常相似。
Signals are a lot like events, except that they connect objects to one another.
然后主循环查询自己的信号和处理程序之间的内部映射表，也叫做回调，并调用注册到指定对象的指定信号的处理程序。
The main loop then looks through its internal mapping table between its signals and handlers, also called callbacks, and calls the handlers registered for the given signal on the given object.
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