And the experimenter is back there with the speed knob and at random intervals he just speeds up the tape of their heart and then slows it down.

实验者回到实验室，带着录音设备,随机地,他加速了心跳的录音,然后又慢下来。

耶鲁公开课 - 心理学导论课程节选

And it doesn't matter which slide he speeds up the tape of the heartbeat on, that's the one the subject is more likely to think is the person of their dreams, the person they're attracted to.

他在放哪张幻灯片的时候,加速录音并不重要，受试者更有可能认为,这个幻灯片上的人就是他的梦中情人。

耶鲁公开课 - 心理学导论课程节选