另一种被柯仁博士和吉芬博士冠以“男中音”的咯咯咯咯的声音则向他们的求偶对象传递着它们的体型（包括身长和头寸），同时也传达着他们的努力程度（这种努力程度是通过肾上腺皮质酮的水平来衡量的）。
A mid-song sound that Dr Koren and Dr Geffen dubbed “chucks” communicates size (body length and head diameter) and also level of stress (as measured by cortisone levels).
一个人为接受者，把他的/她的前臂放在靠近幕帘的地方；另一个作为传达者，仅能通过触碰对方来传递一种情绪感受。
One person, known as the decoder, placed his or her forearm beneath the curtain, while the other person, or encoder, communicated an emotion solely through touch.
两对情侣合成一组，一个传达者分别向自己的另一半和一个陌生人传递相同的情感。
Couples were grouped in foursomes, and the same encoder conveyed the emotions to both a romantic interest and a stranger.
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