Lee V M, Linden R W
Clinical Cranio-facial Biology Research Unit, King's College London, Strand, U.K.
Physiol Behav. 1992 Dec;52(6):1121-5. doi: 10.1016/0031-9384(92)90470-m.
We have previously shown that smell has no effect on resting parotid salivary flow in humans. In this study we investigated the effect of two odours on unilateral parotid salivary flow stimulated by either mastication or mastication with gustation. Neither odour stimulated flow above that elicited by either mastication or mastication with gustation. Removing an odour by sealing the nares has been reported to reduce stimulated parotid salivary flow, suggesting that smell contributes to stimulated salivary flow. However, in the present study, sealing the nares with a nose clip caused a significant reduction in the saliva elicited by an odourless stimulus. Even placing the nose clip over the bridge of the nose without sealing the nares significantly reduced the salivary flow, suggesting that the nose clip itself causes a reduction in stimulated parotid salivary flow. In conclusion, smell has no effect on stimulated parotid salivary flow in humans.
我们之前已经表明，嗅觉对人类静息腮腺唾液流量没有影响。在本研究中，我们调查了两种气味对咀嚼或咀嚼伴味觉刺激引起的单侧腮腺唾液流量的影响。两种气味都不会刺激产生超过咀嚼或咀嚼伴味觉所引发的流量。据报道，通过封闭鼻孔去除气味会减少刺激的腮腺唾液流量，这表明嗅觉有助于刺激唾液流量。然而，在本研究中，用鼻夹封闭鼻孔会导致无味刺激引发的唾液显著减少。即使将鼻夹放在鼻梁上而不封闭鼻孔，也会显著减少唾液流量，这表明鼻夹本身会导致刺激的腮腺唾液流量减少。总之，嗅觉对人类刺激的腮腺唾液流量没有影响。
