这个实验很简单：21名 TT 治疗专家通过一个屏幕卡住他们的手，掌心向上。
The experiment was straight forward: 21 TT therapists stuck their hands, palms up, through a screen.
她抬起头，若无其事的摊开手掌，掌心向上。
She raised her head and nonchalantly extended her hand, the palm up.
因此，他们很可能试图控制自己的身体，减少可能显示撒谎的举止，或故意做一些强调诚实(如掌心向上伸开)的动作。
As above, they may well seek to control their body, reducing potentially tell-tale movements or deliberately moving in ways that emphasise honesty (such as palms-up openness).
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