经颅电刺激术 有助于人们学习数学概念
<p><span word="In">In</span> <span word="a">a</span> <span word="lab">lab</span> <span word="in">in</span> <span word="Oxford">Oxford</span> <span word="University">University</span>'<span word="s">s</span> <span word="experimental">experimental</span> <span word="psychology">psychology</span> <span word="department">department</span>, <span word="researcher">researcher</span> <span word="Roi">Roi</span> <span word="Cohen">Cohen</span> <span word="Kadosh">Kadosh</span> <span word="is">is</span> <span word="testing">testing</span> <span word="an">an</span> <span word="intriguing">intriguing</span> <span word="treatment">treatment</span>: <span word="He">He</span> <span word="is">is</span> <span word="sending">sending</span> <span word="low">low</span>-<span word="dose">dose</span> <span word="electric">electric</span> <span word="current">current</span> <span word="through">through</span> <span word="the">the</span> <span word="brains">brains</span> <span word="of">of</span> <span word="adults">adults</span> <span word="and">and</span> <span word="children">children</span> <span word="as">as</span> <span word="young">young</span> <span word="as">as</span> 8 <span word="to">to</span> <span word="make">make</span> <span word="them">them</span> <span word="better">better</span> <span word="at">at</span> <span word="math">math</span>.</p><p>在牛津大学(<span word="Oxford">Oxford</span> <span word="University">University</span>)实验心理学系的一个实验室里，研究人员罗伊・科恩・卡多什(<span word="Roi">Roi</span> <span word="Cohen">Cohen</span> <span word="Kadosh">Kadosh</span>)正在试验一项有趣的治疗方法：他让低剂量的电流流经成年人和最小年龄为八岁的儿童的大脑，让他们更会做数学题。</p><p><span word="A">A</span> <span word="relatively">relatively</span> <span word="new">new</span> <span word="brain">brain</span>-<span word="stimulation">stimulation</span> <span word="technique">technique</span> <span word="called">called</span> <span word="transcranial">transcranial</span> <span word="electrical">electrical</span> <span word="stimulation">stimulation</span> <span word="may">may</span> <span word="help">help</span> <span word="people">people</span> <span word="learn">learn</span> <span word="and">and</span> <span word="improve">improve</span> <span word="their">their</span> <span word="understanding">understanding</span> <span word="of">of</span> <span word="math">math</span> <span word="concepts">concepts</span>.</p><p>相对较新的大脑刺激技术“经颅电刺激术”（<span word="transcranial">transcranial</span> <span word="electrical">electrical</span> <span word="stimulation">stimulation</span>，简称<span word="tES">tES</span>）可能有助于人们学习数学概念，并提高他们对数学概念的理解。</p><p><span word="The">The</span> <span word="electrodes">electrodes</span> <span word="are">are</span> <span word="placed">placed</span> <span word="in">in</span> <span word="a">a</span> <span word="tightly">tightly</span> <span word="fitted">fitted</span> <span word="cap">cap</span> <span word="and">and</span> <span word="worn">worn</span> <span word="around">around</span> <span word="the">the</span> <span word="head">head</span>. <span word="The">The</span> <span word="device">device</span>, <span word="run">run</span> <span word="off">off</span> <span word="a">a</span> 9-<span word="volt">volt</span> <span word="battery">battery</span> <span word="commonly">commonly</span> <span word="used">used</span> <span word="in">in</span> <span word="smoke">smoke</span> <span word="detectors">detectors</span>, <span word="induces">induces</span> <span word="only">only</span> <span word="a">a</span> <span word="gentle">gentle</span> <span word="current">current</span> <span word="and">and</span> <span word="can">can</span> <span word="be">be</span> <span word="targeted">targeted</span> <span word="to">to</span> <span word="specific">specific</span> <span word="areas">areas</span> <span word="of">of</span> <span word="the">the</span> <span word="brain">brain</span> <span word="or">or</span> <span word="applied">applied</span> <span word="generally">generally</span>. <span word="The">The</span> <span word="mild">mild</span> <span word="current">current</span> <span word="reduces">reduces</span> <span word="the">the</span> <span word="risk">risk</span> <span word="of">of</span> <span word="side">side</span> <span word="effects">effects</span>, <span word="which">which</span> <span word="has">has</span> <span word="opened">opened</span> <span word="up">up</span> <span word="possibilities">possibilities</span> <span word="about">about</span> <span word="using">using</span> <span word="it">it</span>, <span word="even">even</span> <span word="in">in</span> <span word="individuals">individuals</span> <span word="without">without</span> <span word="a">a</span> <span word="disorder">disorder</span>, <span word="as">as</span> <span word="a">a</span> <span word="general">general</span> <span word="cognitive">cognitive</span> <span word="enhancer">enhancer</span>. <span word="Scientists">Scientists</span> <span word="also">also</span> <span word="are">are</span> <span word="investigating">investigating</span> <span word="its">its</span> <span word="use">use</span> <span word="to">to</span> <span word="treat">treat</span> <span word="mood">mood</span> <span word="disorders">disorders</span> <span word="and">and</span> <span word="other">other</span> <span word="conditions">conditions</span>.</p><p>电极被放在一顶很紧的帽子里，戴在头上把头包住。这款设备采用一颗常常用于烟雾探测器的九伏电池，只会产生微小的电流，可以瞄准大脑的特定区域，也可以应用于整个大脑。微弱的电流降低了副作用风险，从而开启了将它用作普通认知促进器、甚至用于没有认知障碍的人的可能性。科学家也在探索其治疗情绪障碍和其他状况的用途。</p>
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