Abstract
This study analyzes the recognition process in the examination of the texture of fine particles through tactile sensing with human fingers, and aims at establishing the structure of texture recognition. Characteristic values of tactile sensing are looked for by the principal component analysis, and also by investigating a relationship between tactile sensing and its verbal response. In this study, it is understood that there are characteristic values of tactile sensing which is relative to the form of a fingerprint. These values are the threshold at which the tactile sensing switch. The correspondence between the diameters of the particles and the term expressed for the tactile sensing is also established.
