英语幻灯片-做梦竟能增强记忆力.pdf

People who enjoy a dream-filled sleep are significantly better at recalling information and making links between facts when they wake,scientists found.科学家发现，那些睡觉时梦境连连的人M 们，醒来时记忆力和关联事物的能力都会 显著增强。But recharging with a shallow nap offers no such mental boost,the research suggests.he results of the study add to the growing body of evidence that Rapid Eye Movement(REM)sleep is crucial to the brain/s ability to lay down and consolidate memories.但同时该研究显示，如果仅仅是打个小盹，不会对脑力产 生如此奇效。此前不断有证据表明，快速眼动睡眠对大脑巩固记忆的能 力至关重要，而这一研究结果再次印证了该说法。An average night s repose includes four or five spells of REM sleep,but these bursts tend to be lengthier towards the end of the night.夜间睡眠通常包括四到五个周期的快 速眼动睡眠，但直到天亮之前，快速眼 动睡眠间隔周期呈逐渐延长的趋势。This means that adults who get less than the recommended seven to eight hours a night-and therefore insufficient REM sleep-may be damaging their minds ability to form strong memories.Although REM sleep is not classified as a type of deep sleep,it is only reached after the brain has passed through deep sleep stages.这意味着，睡眠时间不足7-8小时的成年人形成牢固记忆 的能力受到严重影响，因为他们无法保障充分的快速眼动睡眠 时间。尽管快速眼动睡眠并不属于深度睡眠的范畴，但只有在经 过深度睡眠后，大脑才能进入快速眼动睡眠状态。Tor the most recent study,participants were shown groups of three words 一 such as cootie,heart and“sixteen-and asecf to findanother word that can 6e associated all three words.In this e侬mp3 the answer woufxf have been“sweet”.II亘星英 i吾 Www.Hxen.coni在最新研究中，研究人员向参与者屐示三个单词-譬如cookie”、aheart，爱yJ”以及“s谑een(16)”,同时他们需要找到与这三个词语相关的一个词。在这个词子中，正确答案应该是“sweet，甜蜜)”这个词。Participants were tested once in the morning and then given the same tasagain in tHe afternoon.In between,some were allowed a nap with sleep,some a nap without 磔 sleep while tHeothers Had a quiet rest period.参与者在早上和下午各进行了同样战浅。而在两次 测试的中间，一些人进行了短暂的快速眼粉漫民；一些人 虽然小睡但并未进入快速眼动睡眠状态；还有、部分人只 是安静地休息了一会儿。丁/ie quiet rest and 虱E%sCeep groups showed no improvement in their test results,but the 磔 sleep group improved on theirmorning performance 6y anaverage of almost 40 per 4ce”为于分别进行简单休息和无快速眼如眠小憩的两组 参与者，他们实验结果并没有任何进步；议入快速眼动 睡眠的一组测试者，他们早上的测试成绩提添r近40%。(Dr Sara Medhic a sleep researcher at the Vnwersity of CaCifornia in San Diego who led the stiufy 6eReves t tHe formation of connections 6etw previously unassociated informationin the 6rain-which leads tocreative pro6Cem-soving-isencouraged 6y neurological changes which occur during 磔 sleep.该研究负责人，加州大学圣地亚哥分校睡眠研 究员萨拉梅德尼克认为，大脑把之前储存的信息 联系在一起，并最终形成创造性的解决问题的方案,这整个过程的催化剂便是快速眼动睡眠中发生的神 经变化。Scientists have been working on connecti between sleep,dreams and brain activity since th REM state was firstidentified in 1953 by US researchers.自1953年美国研究人员首次确 认快速眼动睡眠状态以来，科学 家一直致力于研究睡眠、梦境以 及大脑活动三者之间的联系。They found that p woken while their cl eyes made jerking movements recalled much more colourful andelaborate dreams than people woken during other stages of sleep.他们发现相对那些从其它睡眠状态中 醒来的人，从快速眼动睡眠状态中醒来的 人更善于记住那些丰富多彩的梦境。It is now beliei sort of mental the brain to so that needs to E information vl This process memories are the brain to ot:hat sleep acts as a g system,enabling levant information tained from useless can be discarded.:ake place asted from one part of现在人们坚信，睡眠过程就像是一种记忆的归档系随着储存的记忆在大脑中进行位置转移，大脑从而信息进行区分一一摒弃无用信息，保留有用信息。