By using the receptive relaxation reflex of the stomach as a basis, artificial conditioned reflex has been established with the sound of an electric bell or a metronome as indifferent stimulus.

用食道扩张刺激为基础，以电铃声或节拍器声作为条件刺激，可形成胃容受性舒张的条件反射。

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Yet as I understand it, Keynesian theory is indifferent between spending hikes and tax cuts as a means of stimulus.

FORBES: Quantitative Easing Is A Bottom-Up Policy