Barlow S M
Exp Neurol. 1987 May;96(2):253-61. doi: 10.1016/0014-4886(87)90044-6.
Afferent information originating from mechanoreceptors located within perioral facial skin is considered to play an important role in the development and maintenance of fine motor skill associated with the production of speech. To date, little quantitative information is available on the frequency sensitivity of the face to controlled sinusoidal displacements, especially in areas of tissue that change shape during speech. The purpose was to determine the mechanical frequency detection thresholds of select skin sites in the face and hand using a psychophysical procedure. Mean frequency detection thresholds for all facial skin sites were significantly higher than thresholds for the forefinger. Further, pacinian-type frequency sensitivity, characteristic of the finger, was absent in the face. Finally, vibratory stimuli may be useful in the assessment of skin sense in patients with suspected involvement of the trigeminal system. A case study is presented to highlight the quantitative nature of this psychophysical procedure.
源自口周面部皮肤内机械感受器的传入信息，被认为在与言语产生相关的精细运动技能的发展和维持中起重要作用。迄今为止，关于面部对受控正弦位移的频率敏感性，尤其是在言语过程中会改变形状的组织区域，几乎没有定量信息。目的是使用心理物理学方法确定面部和手部选定皮肤部位的机械频率检测阈值。所有面部皮肤部位的平均频率检测阈值显著高于食指的阈值。此外，面部不存在手指特有的帕西尼氏型频率敏感性。最后，振动刺激可能有助于评估疑似三叉神经系统受累患者的皮肤感觉。本文通过一个案例研究来突出这种心理物理学方法的定量性质。
