The human tongue is important in the oral processing of food and in sensory perception. Tongue topography could influence delicate differences in sensory perception. It is hypothesized that tongue surface roughness could alter oral lubrication status and affect perception of smoothness. Fifteen participants with varying levels of tongue surface roughness were recruited and tested. Participants' in situ oral lubrication status without and after consumption of fluid food (milk with varying fat content and maltodextrin solutions with different shear viscosities) was measured. Participants' smoothness sensory scores were also recorded.

中文翻译：

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舌头表面粗糙度影响的原位口腔润滑和光滑感

人类的舌头在食物的口腔处理和感官知觉中很重要。舌头地形可能会影响感官知觉的微妙差异。据推测，舌头表面粗糙度可能会改变口腔润滑状态并影响对光滑度的感知。招募和测试了 15 名具有不同舌头表面粗糙度的参与者。测量了参与者在食用流体食物（具有不同脂肪含量的牛奶和具有不同剪切粘度的麦芽糊精溶液）之前和之后的原位口腔润滑状态。参与者的平滑度感官评分也被记录下来。