本实验用功能性核磁共振成像技术(fMRI)对人想象冷刺激和实际接受冷刺激进行了研究.结果发现想象冷刺激与实际冷刺激激活脑区既有相同之处也有不同之处.相同点在于两者都激活了初级体感区(SI)、辅助体感区(SII)、左侧额中回和运动区;区别在于想象冷刺激除了激活这些相同的脑区以外,还激活了左侧额下回和扣带回.实际冷刺激没有激活这两个脑区,但是,实际刺激激活了右侧额中回.
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