Livermore A, Hummel T, Pauli E, Kobal G
Department of Biology, Georgia State University, Atlanta 30302.
Experientia. 1993 Oct 15;49(10):840-2. doi: 10.1007/BF01952594.
Based on previous research it may be hypothesized that the perception of odorants is modified by an axon reflex emanating from trigeminal afferents activated via the skin and/or the intranasal respiratory epithelium. The present experiment investigated the effects of trigeminal cutaneous stimulation on intensity estimates of intranasal chemical stimuli. While the left nostril was stimulated chemically with olfactory and trigeminal stimulants, four regions of the face were stimulated electrically. Intensity estimates of the chemical stimuli tended to increase after cutaneous electrical stimulation which may be interpreted in terms of response priming. The effect of electrical stimulation did not differ at the 4 stimulation sites. The results argue against the hypothesis that the processing of intranasal chemical stimuli is modified peripherally by cutaneous trigeminal excitation.
基于先前的研究，可以假设气味剂的感知会被一种轴突反射所改变，这种轴突反射源自通过皮肤和/或鼻内呼吸上皮激活的三叉神经传入神经。本实验研究了三叉神经皮肤刺激对鼻内化学刺激强度估计的影响。当用嗅觉和三叉神经刺激剂对左鼻孔进行化学刺激时，对面部的四个区域进行电刺激。皮肤电刺激后，化学刺激的强度估计往往会增加，这可以用反应启动来解释。在4个刺激部位，电刺激的效果没有差异。这些结果与鼻内化学刺激的处理在周围被皮肤三叉神经兴奋所改变的假设相悖。
