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1、研究：借酒消愁“愁更愁”研究：借酒消愁“愁更愁”ModeratedrinkingcanimprovememoryHittingthebottletohelpdrownoutmemoriesyou'dratherforgetmayinfactetchthemmoredeeplyintoyourconsciousness,anewstudyhasfound.Hittingthebottletohelpdrownoutmemoriesyou'dratherforgetmayinfactetchthemmoredeeplyintoyourconsc
2、iousness,anewstudyhasfound.Andhavingoneortwoglassesofwineadaymayincreaseyourabilitytoremember,andevenhelpwithAlzheimersufferers.ThestudyatAucklandUniversitywasundertakenbyDrMaggieKalevandProfessorMatthewDuring.Thetworesearchersfoundmoderatelevelsofalcoholconsumption,equiva
3、lenttooneortwoglassesofwineaday,couldenhancememory.Incontrast,highlevelsofalcoholdecreasedtheabilityofnewbraincellstodevelopandmature."Lowlevelsofalcoholpromotedneutralmemories,suchasrememberingobjects,"saidDrKalev."However,contrarytopopularbelief,wealsofoundthatexcessivel
4、evelsofalcoholenhancedmemoriesofhighlyemotionalstimuli,meaningtheconceptof`drinkingtoforget'isunlikelytobetrue."Ourworksuggeststhatheavydrinkingactuallyreinforcesnegativememories."Thestudyalsoidentifiedthewaylowdosesofalcoholimprovedmemory.DrKalevsaida"veryimportant"brainr
5、eceptor,calledanNMDAreceptor,appearedtobenecessaryfortheprocess.TestingdoneonratsshowediftheydidnothaveenoughNMDAreceptors,theirmemorydidnotimprovewhengivenlowalcoholdoses.However,ratswhichdidshowhighnumbersofNMDAreceptorsexhibitedmemoryimprovementwhengivensmallamountsofal
6、cohol."Pathwaysbywhichmemoryislaiddownareunclear,butNMDAreceptoriscriticalinthisprocess,"DrKalevsaid."Buildingonthisknowledgemayhelpinthetreatmentofmemorydisorders,suchasAlzheimer'sdiseaseandotherdementias."TheresultsofthestudyarepublishedinJournalofNeuroscience.一项最新研究发现，借
7、酒消愁可能会“愁更愁”。每天喝一两杯酒能够增强记忆，甚至有助于缓解阿滋海默氏症（老年痴呆症）。该研究是由奥克兰大学的麦吉•卡莱弗博士和马修•杜林教授共同开展的。他们发现，适度饮酒——即每天喝一两杯酒，能够增强记忆力。而过度饮酒则会抑制新生脑细胞的发育及生长。卡莱弗博士说：“少量饮酒能够促进‘中性记忆’，比如对物体的记忆。”“然而，我们还发现，与普遍观点相反，过度饮酒能够强化人对高强度情感刺激的记忆，也就是说‘借酒消愁’并不能奏效。”“我们的研究表明酗酒实际上能强化人的负面记忆。”同时，少量饮酒能够改善人的记忆。卡莱弗博士说大脑中的“门冬氨酸
8、受体”在这一过程中起了“十分重要”的作用。白鼠试验表明，如果它们大脑中没有足够的门冬氨酸受体，即使摄入少量酒精，记忆也不会得到改善。然而，大脑中有大量门冬氨酸受体的白鼠在摄入少量
