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The 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. It investigates the effects of the physical attributes of the particles on the recognition and prepares the foundation for developing sensor devices which implement human tactile sensing. The authors found 1) that there is a clear relationship between the physical attributes and subjects' verbal response, and 2) that there is a threshold at which the subjects switch from feeling particles as separate, individual bodies over to associating them with a fluidlike character. The authors also established 3) correspondences between the diameters of the particles and the terms expressed by the subjects.