現在位置 : 健康2 > 緩解疼痛的策略：雙臂交叉？- Cross Your Arms
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緩解疼痛的策略：雙臂交叉？
可藉由雙臂交叉混淆大腦的疼痛訊息，減輕疼痛。 【24drs.com】 2011/5/27 上午 10:10:23 刊登在疼痛（Pain）期刊的英國研究發現，雙臂在手腕處交叉可以讓大腦在接收手部疼痛訊號時混淆，降低疼痛的強度。 研究人員在8位成人手部的兩個不同位置，用雷射光造成像針刺般的疼痛感覺，第一次，參與者將雙手放在身體兩側；第二次將雙臂在身體中央交叉；參與者要評定疼痛感覺，研究人員則用腦電波儀（EEG）測量大腦的電反應。 結果顯示，雙臂交叉時，無論是疼痛感還是腦電波活動都減少。這個結果可用來透過操縱大腦知覺治療疼痛症狀，英國倫敦大學的Giandomenico Iannetti醫師表示，也許在我們受到傷害時，不只是要揉揉傷口，還要交叉手臂。 研究人員認為，疼痛降低的原因很可能是從大腦內、外部送出矛盾的訊息，造成大腦混亂。 Iannetti醫師認為，這代表處理身體右側和右外部空間的大腦區域通常是一起活動的，讓感官刺激較有效地處理，交叉雙臂會讓這些地區沒有一起活化，導致大腦對感官刺激的處理效果較差，包括疼痛、感受較弱。 |
Cross your arms to relieve pain
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Pain Relief Strategy: Cross Your Arms?
Study Suggests Crossing Your Arms Can Reduce Pain by Confusing the Brain's Pain Signals By Jennifer Warner WebMD Health News May 20, 2011 -- Crossing your arms may confuse the brain and help fight pain, according to a new study. The study suggests crossing arms at the wrists mixes up the brain's perception of pain signals sent from the hands to the brain and reduces the intensity of pain. Researchers say the findings may lead to new therapies to treat painful conditions by manipulating the brain's perception of the body. "Perhaps when we get hurt, we should not only "rub it better" but also cross our arms," says researcher Giandomenico Iannetti, MD, of University College London, in a news release. Conflicting Information From the Brain In the study, published in Pain, researchers used a laser to deliver a pin-prick-like pain sensation to the hands of eight adult volunteers in two different positions. The first time, the participants had their hands at their sides and the second time they crossed their arms over the center of their bodies. |
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Crossing your arms 'relieves hand pain'
Crossing your arms across your body after injury to the hand could relieve pain, researchers suggest. 20 May 2011 Last updated at 00:36 GMT The University College London team, who undertook a proof-of-concept study of 20 people, say the brain gets confused over where pain has occurred. In the journal Pain, they suggest this is because putting hands on the "wrong" sides disrupts sensory perception. Pain experts say finding ways of confusing the brain is the focus of many studies. The team used a laser to generate a four millisecond pin-prick of pain to participants' hands, without touching them. Each person ranked the intensity of the pain they felt, and their electrical brain responses were also measured using electroencephalography (EEG). The results from both participants' reports and the EEG showed that the perception of pain was weaker when the arms were crossed over the "midline" - an imaginary line running vertically down the centre of the body. Activation Dr Giandomenico Iannetti, from the UCL department of physiology, pharmacology and neuroscience, who led the research, said: "In everyday life you mostly use your left hand to touch things on the left side of the world, and your right hand for the right side of the world. Perhaps when we get hurt, we should not only 'rub it better' but also cross our arms ” Quote Dr Giandomenico Iannetti, UCL "This means that the areas of the brain that contain the map of the right body and the map of right external space are usually activated together, leading to highly effective processing of sensory stimuli. "When you cross your arms these maps are not activated together anymore, leading to less effective brain processing of sensory stimuli, including pain, being perceived as weaker." He said the discovery could potentially lead to new ways of treating pain that exploit this confusion. Dr Iannetti he added: "Perhaps when we get hurt, we should not only 'rub it better' but also cross our arms." His team, alongside Australian researchers, are now testing the theory on patients who have chronic pain conditions. A spokesman for the Pain Relief Foundation said a lot of research into relieving chronic pain was looking into ways of confusing the brain and disrupting pain messages. |
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Crossing arms reduces pain: mini-lecture (UCL)
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