an electric signal can trick a monkey’s brain into 阅读理解答案

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1、Anelectricsignalcantrickamonkey’sbraininto阅读理解答案　　Anelectricsignalcantrickamonkey’sbrainintobelievingtheanimal’sfingerhasbeentouched.　　Touchsomething,andyourbrainknows.Thehandsendssignalstothebraintoannouncecontactwasmade.Butthatfeelingoftouchmaynotrequiremakingactualcontact,tests

2、onmonkeysnowshow.Zappingbraincellscanfooltheanimalintothinkingitsfingerhastouchedsomething.　　Apersonwhohaslostalimborbecomeparalyzedmayneedanartificiallimbtocompleteeverydaytasks.Butsuchpatientsmaynottrulyfeelanyobjectstheyhold.Thenewfindingspointtowardonedaycreatingasenseoftouchi

3、nthosewhousesuchartificiallimbs.PsychologistSlimanBensmaiaofUniversityofChicagoworkedonthenewtests.Histeam’sfindingsappearedonOctober14intheProceedingsoftheNationalAcademyofSciencesoftheUnitedStatesofAmerica.　　Thesenseoftouchiscrucialtoeverydaytasks:Peoplewithoutitmayhavedifficult

4、ycrackinganegg,liftingacuporeventurningadoorknob.That’swhyrestoringitisamajorgoalfordesignersofartificiallimbs.　　Intheirnewstudy,Bensmaiaandhisco-workersworkedwithrhesusmonkeys(恒河猴).Thescientistsimplantedelectrodes(电极)---smalldevicesthatcandetectandrelayanelectricalsignal—intothea

5、nimals’brains.Thescientistsusedtheelectrodedatatoidentifywhichneuronshadbecomeactive.Thenthescientistsusedtheimplantedelectrodestozapthosesameneurons.Andthemonkeysreactedasthoughtheirfingershadbeentouched.Infact,theyhadn’t.　　Themonkeyscouldn’tusewordstotellthescientistswhattheyhad

6、felt.Instead,theycommunicatedbylookinginaparticulardirection—justaswhentheyhadreallybeentouched.　　Thenewfindingsshowhowtouch-sensitivedevicescouldbebuilt.Thenewstudyalsooffers“aniceclearpathway”forfiguringouthowtorestoreasenseoftouchtoanamputee(被截肢者)orsomeonewithainjuryofspinalcor

7、d.　　Thestudyshowshowartificiallimbsmightbeconnectedtothebrainsothatapersoncan“feel”withsuchaprosthesis(假肢).Butsuchasupersensorydevicedoesn’texistyetandscientistshavealotofworktodobeforepeoplewillbenefitfromit.Researchersmustfirstfigureoutwhethertheelectrodeswouldworkinpeopleinthes

8、amewaytheydoinmonkeys.　　“Ithinkth