The participants would type for 10 seconds, rest for 10 seconds, then repeat while the researchers monitored their neural activity.

参与者打10秒后休息10秒，之后重复这套动作，同时研究员监视着们活动。

He became fascinated by how a smile works and analyzed every possible movement of each part of the face, working out the origins of every nerve that controls every facial muscle.

开始着迷于微笑是如何工作，分析了脸部每个部位每一个可能动作，研究出控制每一块面部肌肉每根起源。

And identified 15 different facial movements, The researchers videotaped cats at 3 shelters to see how they responded to an approaching human They recorded facial expressions and body movements from 106 cats in all.

并确定了 15 种不同面部动作，研究员对 3 个收容所猫进行了录像，以了解它们对接近反应。们总共记录了 106 只猫面部表情和身体动作。