(3) 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.

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