The results suggest that ACG may be one of the representative areas of the GSN afferent pathway, and there exist two kinds of VNNs in ACG, which may be differently involved in pain modulation.

• 285个为刺激非相关神经元。结果提示，内脏大神经的传入通路投射到对侧的扣带回前部；扣带回前部存在内脏伤害感受神经元，可分为两种类型，它们在痛觉的感受及调制中可能起不同的作用。