The invention relates to medicine, namely namely, psychophysiology, Neurology, Rehabilitation, Clinical Physiology, Sports Physiology and labor and can be used for the study of tactile sensitivity.; The technical result is ensured by the fact that the proposed unit is a metal plate on which there are 4 types of pieces made of metal and is rigidly fixed to the base - 20 isosceles triangles 20 Lozenges 20 squares and 20 laps, with the thickness of each individual figure 1 mm, arranged in a random sequence.; The apparatus consists of a metal plate and a length of 125 mm and 100 mm 5 mm wide (1) on which there are 4 types of pieces made of metal and is rigidly fixed to the base - 20 of isosceles triangles with a side length of 5 mm (2), 20 lozenges with a side length of 5 mm (3) 20 squares with a side length of 5 mm (4), and 20 circles with a diameter of 5 mm (5) with a thickness of each individual figure 1 mm arranged in a random sequence. (Ill.1).
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