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

You're brought to the lab and you're listening to a tape recording of interviews with people who are described as possible representatives from your college to appear on a quiz show.

来到实验室,然后在听采访磁带,被采访者可能代表学校,去参加一档智力竞争节目。

耶鲁公开课 - 心理学导论课程节选