The Touch Sensation: Ageing and Gender Influences
A decline in the main sensory modalities (vision, hearing, taste, and smell) is well reported to occur with advancing age, it is expected a similar change to occur with touch sensation and perception. In this study, we have focused on the touch sensations highlighting ageing and gender influences with in vivo systems. The touch process can be divided into two main phases:
- The first phase is the first contact between the finger and the object, during this contact, an adhesive force has been created which is the needed force to permit an initial movement of the finger.
- In the second phase, the finger mechanical properties with their surface topography play an important role in the obtained sensation.
In order to understand the age and gender effects on the touch sense, we develop different ideas and systems for each phase. Significant differences of the main parameters are shown with ageing and gender. The comparaison between men and women groups reveals that the adhesive force is higher for women. The results of mechanical properties show a Young’s modulus higher for women and also increasing with age. The roughness analysis shows a significant difference in function of age and gender.
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