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1、2007年Text1Ifyouweretoexaminethebirthcertificatesofeverysoccerplayerin2006’sWorldCuptournament,youwouldmostlikelyfindanoteworthyquirk:elitesoccerplayersaremorelikelytohavebeenbornintheearliermonthsoftheyearthaninthelatermonths.IfyouthenexaminedtheEuropeannationalyouthteamsthatfeedtheW
2、orldCupandprofessionalranks,youwouldfindthisstrangephenomenontobeevenmorepronounced.Whatmightaccountforthisstrangephenomenon?Hereareafewguesses:a)certainastrologicalsignsconfersuperiorsoccerskills;b)winter-bornbabiestendtohavehigheroxygencapacity,whichincreasessoccerstamina;c)soccer-
3、madparentsaremorelikelytoconceivechildreninspringtime,attheannualpeakofsoccermania;d)noneoftheabove.AndersEricsson,a58-year-oldpsychologyprofessoratFloridaStateUniversity,sayshebelievesstronglyin“noneoftheabove.”EricssongrewupinSweden,andstudiednuclearengineeringuntilherealizedhewoul
4、dhavemoreopportunitytoconducthisownresearchifheswitchedtopsychology.Hisfirstexperiment,nearly30yearsago,involvedmemory:trainingapersontohearandthenrepeatarandomseriesofnumbers.“Withthefirstsubject,afterabout20hoursoftraining,hisdigitspanhadrisenfrom7to20,”Ericssonrecalls.“Hekeptimpro
5、ving,andafterabout200hoursoftraininghehadrisentoover80numbers.”Thissuccess,coupledwithlaterresearchshowingthatmemoryitselfisnotgeneticallydetermined,ledEricssontoconcludethattheactofmemorizingismoreofacognitiveexercisethananintuitiveone.Inotherwords,whateverinborndifferencestwopeople
6、mayexhibitintheirabilitiestomemorize,thosedifferencesareswampedbyhowwelleachperson“encodes”theinformation.Andthebestwaytolearnhowtoencodeinformationmeaningfully,Ericssondetermined,wasaprocessknownasdeliberatepractice.Deliberatepracticeentailsmorethansimplyrepeatingatask.Rather,itinvo
7、lvessettingspecificgoals,obtainingimmediatefeedbackandconcentratingasmuchontechniqueasonoutcome.Ericssonandhiscolleagueshavethustakentostudyingexpertperformersinawiderangeofpursuits,includingsoccer.Theygatherallthedatatheycan,notjustperformancestatisticsandbiographicaldetailsbutalsot
8、heresultsoft
