The Two-point Fused Sensory Area of the Skin and the Effect of Acupuncture Stimulation / 全日本鍼灸学会雑誌

ABSTRACT

The two-point fused sensory area (fused area) was calculated from two-point fused distance. The fused area was enlarged by acupuncture stimulation. This enlargement of the fused area by acupuncture was explained on the point of the central nervous mechanisms.<br>Applying the two points of touch and pressure stimuli to the skin, the threshold separation required for the two stimuli to be noticed as one rather than two points was determined. On the same region of the body, three longitudinally combined points and one transversally combined point were measured and the area which was surrounded by them was calculated.<br>The fused area was more enlarged through the touch stimuli than through the pressure ones. On the upper limbs, the shape of the fused area was like an oblong and the area was smaller at the peripheral part than the central part. Acupuncture stimulation enlarged the fused area. This was concerned that the lateral inhibition could not be worked in the tract by impulses which were generated by acupuncture.