Again, scratching did nothing to calm them, suggesting that the nerve-dampening effect of scratching applies uniquely to itching, not pain.

 
  • 撓癢同樣無(wú)法使這些神經(jīng)元鎮定下來(lái),表明這些降低神經(jīng)元活性的撓癢只對瘙癢有用,對痛覺(jué)沒(méi)用。
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