睡眠为何会改善记忆力
<p> 睡眠为何会改善记忆力 <span word="The">The</span> <span word="mechanism">mechanism</span> <span word="by">by</span> <span word="which">which</span> <span word="a">a</span> <span word="good">good</span> <span word="night">night</span> <span word="s">s</span> <span word="sleep">sleep</span> <span word="improves">improves</span> <span word="learning">learning</span> <span word="and">and</span> <span word="memory">memory</span> <span word="has">has</span> <span word="been">been</span> <span word="discovered">discovered</span> <span word="by">by</span> <span word="scientists">scientists</span>. 良好的睡眠可以改善学习记忆能力，其中的机制被科学家发现。 <span word="The">The</span> <span word="team">team</span> <span word="in">in</span> <span word="China">China</span> <span word="and">and</span> <span word="the">the</span> <span word="US">US</span> <span word="used">used</span> <span word="advanced">advanced</span> <span word="microscopy">microscopy</span> <span word="to">to</span> <span word="witness">witness</span> <span word="new">new</span> <span word="connections">connections</span> <span word="between">between</span> <span word="brain">brain</span> <span word="cells">cells</span> - <span word="synapses">synapses</span> - <span word="forming">forming</span> <span word="during">during</span> <span word="sleep">sleep</span>. <span word="Their">Their</span> <span word="study">study</span>, <span word="published">published</span> <span word="in">in</span> <span word="the">the</span> <span word="journal">journal</span> <span word="Science">Science</span>, <span word="showed">showed</span> <span word="even">even</span> <span word="intense">intense</span> <span word="training">training</span> <span word="could">could</span> <span word="not">not</span> <span word="make">make</span> <span word="up">up</span> <span word="for">for</span> <span word="lost">lost</span> <span word="sleep">sleep</span>. <span word="Experts">Experts</span> <span word="said">said</span> <span word="it">it</span> <span word="was">was</span> <span word="an">an</span> <span word="elegant">elegant</span> <span word="and">and</span> <span word="significant">significant</span> <span word="study">study</span>, <span word="which">which</span> <span word="uncovered">uncovered</span> <span word="the">the</span> <span word="mechanisms">mechanisms</span> <span word="of">of</span> <span word="memory">memory</span>. <span word="It">It</span> <span word="is">is</span> <span word="well">well</span> <span word="known">known</span> <span word="that">that</span> <span word="sleep">sleep</span> <span word="plays">plays</span> <span word="an">an</span> <span word="important">important</span> <span word="role">role</span> <span word="in">in</span> <span word="memory">memory</span> <span word="and">and</span> <span word="learning">learning</span>. <span word="But">But</span> <span word="what">what</span> <span word="actually">actually</span> <span word="happens">happens</span> <span word="inside">inside</span> <span word="the">the</span> <span word="brain">brain</span> <span word="has">has</span> <span word="been">been</span> <span word="a">a</span> <span word="source">source</span> <span word="of">of</span> <span word="considerable">considerable</span> <span word="debate">debate</span>. <span word="Researchers">Researchers</span> <span word="at">at</span> <span word="New">New</span> <span word="York">York</span> <span word="University">University</span> <span word="School">School</span> <span word="of">of</span> <span word="Medicine">Medicine</span> <span word="and">and</span> <span word="Peking">Peking</span> <span word="University">University</span> <span word="Shenzhen">Shenzhen</span> <span word="Graduate">Graduate</span> <span word="School">School</span> <span word="trained">trained</span> <span word="mice">mice</span> <span word="in">in</span> <span word="a">a</span> <span word="new">new</span> <span word="skill">skill</span> - <span word="walking">walking</span> <span word="on">on</span> <span word="top">top</span> <span word="of">of</span> <span word="a">a</span> <span word="rotating">rotating</span> <span word="rod">rod</span>. <span word="They">They</span> <span word="then">then</span> <span word="looked">looked</span> <span word="inside">inside</span> <span word="the">the</span> <span word="living">living</span> <span word="brain">brain</span> <span word="with">with</span> <span word="a">a</span> <span word="microscope">microscope</span> <span word="to">to</span> <span word="see">see</span> <span word="what">what</span> <span word="happened">happened</span> <span word="when">when</span> <span word="the">the</span> <span word="animals">animals</span> <span word="were">were</span> <span word="either">either</span> <span word="sleeping">sleeping</span> <span word="or">or</span> <span word="sleep">sleep</span> <span word="deprived">deprived</span>. <span word="Their">Their</span> <span word="study">study</span> <span word="showed">showed</span> <span word="that">that</span> <span word="sleeping">sleeping</span> <span word="mice">mice</span> <span word="formed">formed</span> <span word="significantly">significantly</span> <span word="more">more</span> <span word="new">new</span> <span word="connections">connections</span> <span word="between">between</span> <span word="neurons">neurons</span> - <span word="they">they</span> <span word="were">were</span> <span word="learning">learning</span> <span word="more">more</span>. <span word="And">And</span> <span word="by">by</span> <span word="disrupting">disrupting</span> <span word="specific">specific</span> <span word="phases">phases</span> <span word="of">of</span> <span word="sleep">sleep</span>, <span word="the">the</span> <span word="research">research</span> <span word="group">group</span> <span word="showed">showed</span> <span word="deep">deep</span> <span word="or">or</span> <span word="slow">slow</span>-<span word="wave">wave</span> <span word="sleep">sleep</span> <span word="was">was</span> <span word="necessary">necessary</span> <span word="for">for</span> <span word="memory">memory</span> <span word="formation">formation</span>. <span word="During">During</span> <span word="this">this</span> <span word="stage">stage</span>, <span word="the">the</span> <span word="brain">brain</span> <span word="was">was</span> <span word="replaying">replaying</span> <span word="the">the</span> <span word="activity">activity</span> <span word="from">from</span> <span word="earlier">earlier</span> <span word="in">in</span> <span word="the">the</span> <span word="day">day</span>. <span word="Prof">Prof</span> <span word="Wen">Wen</span>-<span word="Biao">Biao</span> <span word="Gan">Gan</span>, <span word="from">from</span> <span word="New">New</span> <span word="York">York</span> <span word="University">University</span>, <span word="told">told</span> <span word="the">the</span> <span word="BBC">BBC</span>: <span word="Finding">Finding</span> <span word="out">out</span> <span word="sleep">sleep</span> <span word="promotes">promotes</span> <span word="new">new</span> <span word="connections">connections</span> <span word="between">between</span> <span word="neurons">neurons</span> <span word="is">is</span> <span word="new">new</span>, <span word="nobody">nobody</span> <span word="knew">knew</span> <span word="this">this</span> <span word="before">before</span>. <span word="We">We</span> <span word="thought">thought</span> <span word="sleep">sleep</span> <span word="helped">helped</span>, <span word="but">but</span> <span word="it">it</span> <span word="could">could</span> <span word="have">have</span> <span word="been">been</span> <span word="other">other</span> <span word="causes">causes</span>, <span word="and">and</span> <span word="we">we</span> <span word="show">show</span> <span word="it">it</span> <span word="really">really</span> <span word="helps">helps</span> <span word="to">to</span> <span word="make">make</span> <span word="connections">connections</span> <span word="and">and</span> <span word="that">that</span> <span word="in">in</span> <span word="sleep">sleep</span> <span word="the">the</span> <span word="brain">brain</span> <span word="is">is</span> <span word="not">not</span> <span word="quiet">quiet</span>, <span word="it">it</span> <span word="is">is</span> <span word="replaying">replaying</span> <span word="what">what</span> <span word="happened">happened</span> <span word="during">during</span> <span word="the">the</span> <span word="day">day</span> <span word="and">and</span> <span word="it">it</span> <span word="seems">seems</span> <span word="quite">quite</span> <span word="important">important</span> <span word="for">for</span> <span word="making">making</span> <span word="the">the</span> <span word="connections">connections</span>.</p>
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