托福阅读――事实否定题(十七)

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1、智课网托福备考资料托福阅读――事实否定题（十七）InfantileAmnesiaWhatdoyourememberaboutyourlifebeforeyouwerethree?Fewpeoplecanrememberanythingthathappenedtothemintheirearlyyears.Adults'memoriesofthenextfewyearsalsotendtobescanty.Mostpeoplerememberonlyafewevents—usuallyonesthatwerem

2、eaningfulanddistinctive,suchasbeinghospitalizedorasibling’sbirth.Howmightthisinabilitytorecallearlyexperiencesbeexplained?Thesheerpassageoftimedoesnotaccountforit;adultshaveexcellentrecognitionofpicturesofpeoplewhoattendedhighschoolwiththem35yearsearlier.An

3、otherseeminglyplausibleexplanation—thatinfantsdonotformenduringmemoriesatthispointindevelopment—alsoisincorrect.Childrentwoandahalftothreeyearsoldrememberexperiencesthatoccurredintheirfirstyear,andelevenmontholdsremembersomeeventsayearlater.Nordoesthehypoth

4、esisthatinfantileamnesiareflectsrepression—orholdingback—ofsexuallychargedepisodesexplainthephenomenon.Whilesuchrepressionmayoccur,peoplecannotrememberordinaryeventsfromtheinfantandtoddlerperiodseither.Threeotherexplanationsseemmorepromising.Oneinvolvesphys

5、iologicalchangesrelevanttomemory.Maturationofthefrontallobesofthebraincontinuesthroughoutearlychildhood,andthispartofthebrainmaybecriticalforrememberingparticularepisodesinwaysthatcanberetrievedlater.Demonstrationsofinfants’andtoddlers'long-termmemoryhavein

6、volvedtheirrepeatingmotoractivitiesthattheyhadseenordoneearlier,suchasreachinginthedarkforobjects,puttingabottleinadoll’smouth,orpullingaparttwopiecesofatoy.Thebrain’slevelofphysiologicalmaturationmaysupportthesetypesofmemories,butnotonesrequiringexplicitve

7、rbaldescriptions.Asecondexplanationinvolvestheinfluenceofthesocialworldonchildren’slanguageuse.Hearingandtellingstoriesabouteventsmayhelpchildrenstoreinformationinwaysthatwillendureintolaterchildhoodandadulthood.Throughhearingstorieswithaclearbeginning,midd

8、le,andendingchildrenmaylearntoextractthegistofeventsinwaysthattheywillbeabletodescribemanyyearslater.Consistentwiththisview,parentsandchildrenincreasinglyengageindiscussionsofpasteventswhenchildrenarea