Such weak connections were found in animals that had not been exposed to the bacterium.

这种薄弱的连接存在于那些没有暴露于细菌的动物体内。

Conversely, weak connections (those with little ion flow) indicated that social experiences were not triggering a reward.

相反，连接薄弱（离子流较少）表明社会经历没有触发奖励。

The researchers randomly changed the " People You May Know" recommendations algorithm that LinkedIn shows its users, so that the prevalence of weaker and stronger connections varied among people on the site.

研究人员随机改变了领英向用户展示的“你可能认识的人”的推荐算法，从而让网站上不同用户的强关系和弱关系的数量各不相同。

One study showed that depressed people have weak connections in the parts of the brain associated with reward and memory, and strong connections in the areas associated with punishment.

一项研究表明，抑郁症患者大脑中与奖赏和记忆相关的区域连接较弱，而与惩罚相关的区域连接较强。