Characterization of sex-based differences in the mechanical properties of human finger glabrous tissue using a fiberoptic sensor.
Characterization of sex-based differences in the mechanical properties of human finger glabrous tissue using a fiberoptic sensor.
复制标题
使用光纤传感器表征人类手指无毛组织机械性能的性别差异。
DOI：
10.1016/j.jbiomech.2014.04.044
复制
发表时间：
2014
影响因子：
2.4
通讯作者：
Barlow,StevenM
中科院分区：
文献类型：
--
作者：
Venkatesan,Lalit;Barlow,StevenM
TAC-Cell is a custom-built somatosensory stimulator that delivers pneumatic cutaneous tactile inputs to virtually any skin target on the body and by virtue of its non-ferrous materials is compatible with functional magnetic resonance imaging (fMRI) and magnetoencephalography (MEG) brain scanners. In this study, we describe the method to measure apparent skin displacement induced by TAC-Cell stimulation of the glabrous surface of the distal phalanx of the index finger. Specifically, we studied the effect of four servo controller input voltages (0.4 V–1.0 V) on resultant skin displacement among eighteen, neurotypical adult male and female participants. A fiberoptic displacement sensor, commonly used in industrial applications, was coupled to the TAC-Cell to measure the glabrous skin׳s kinematic response to different stimulus amplitudes. Skin displacement was significantly dependent on stimulus amplitudes and sex (p<0.0001). Power spectrum and kinematic analysis of skin displacement showed that the pneumatic TAC-Cell stimulus consists of a spectrally rich, high velocity signal. In related work, we have shown that this dynamic pneumocutaneous stimulus is highly effective in evoking a cortical brain response for neurodiagnostic applications and somatosensory pathway analysis in health and disease.
