资源描述：
《0915认知阅读2》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、PsychologicalReviewCopyright1994bytheAmericanPsychologicalAssociation,Inc.1994,Vol.101,No.2,353-3560033-295X/94/S3.00TheMagicalNumberSeven:StillMagicAfterAllTheseYears?AlanBaddeleyThe"magicalnumberseven"givesabeautifullyclearaccountofinformationtheoryandd
2、emon-strateshowtheconceptoflimitedchannelcapacitycanbeappliedacrossarangeofsensorydimen-sions.However,itsmajorinfluencestemsnotfromthisbutfromthedemonstrationthatimmediatememoryspanisrelativelyinsensitivetoamountofinformationperitem.Inemphasizingtheimpor-
3、tanceoftherecedingofinformationanddevelopingtheconceptofchunking,Millersettheagendaforthenextphaseofcognitivepsychologyinwhichinformation-processingconceptswentbeyondtheconfinesofinformationtheory.Thisarticlecontinuestobecitedbecausetheseunderlyingideasco
4、ntinuetobefruitful.Asalong-timeadmirerofthisarticle,Icontinuetoquoteit,processingmachine,aconceptthathascometodominatecog-buthadnotreaditforsomeyears,andbeganmypreparationsnitivepsychologysincethattime.TheideaofinformationasbyrereadingitwhilevisitingtheUn
5、iversityofOtagoinNewabstract,butneverthelessmeasurable,allowsthetheoristtoZealand.Iwasintriguedtodiscoverthatthe1956volumeofdrawconclusions,notonlyacrossdifferentsensoryandpercep-PsychologicalReviewopenedvirtuallyautomaticallyatthisar-tualdomainsbutevenmo
6、rewidely,asMillerdemonstratedbyticle,whichincontrasttothepristinestateoftherestoftheapplyingtheconceptoflimitedcapacitytosensoryjudgments,journalwasdistinctlydog-eared,asifnibbledbygenerationsoftachistoscopicperceptionand,ofcourse,memoryspan.Thein-hungryk
7、iwis.Theobviousdegreeofusespokewellofthegoodformation-processingmetaphorandthegeneralutilityofthetasteofgenerationsofOtagostudents,oratleastoftheirteach-conceptoflimitedchannelcapacityhavebeenenormouslyin-ers,andencouragedmetodothedog-earednesstestonacoup
8、lefluentialintheinterveningyearsandcontinuetobevaluable.ofadjacentissues,comingupwithUnderwood'sclassicarticleThisarticle,alongwithBroadbent's(1958)Perceptionandonproactiveinhibition(whichIhadinfactsuggestedasapos-C
