欢迎来到天天文库
浏览记录
ID:43104260
大小:28.50 KB
页数:4页
时间:2019-09-27
《Major Progress in Health Through Technology》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、FromVOALearningEnglish,thisisSCIENCEINTHENEWSinSpecialEnglish.I'mBobDoughty.AndI'mFaithLapidus.Today,wetellaboutawomanwhocanusesignalsfromherbraintomovearoboticarm.Wetellabouteffortstodevelopanexperimentalgenetreatmentforpatientswithheartdisease.AndweexplainhowAmericancomputersarehel
2、pingmedicalworkersinZimbabwestudytheconditionoftheirpatients.Awomanparalyzedfromtheneckdownhaslearnedtouseherthoughtstocontrolaspecially-designedmotorizedarm.Thearmistheproductofyearsofresearchonmind-controlledartificiallimbs.ResearchersintheAmericanstateofPennsylvaniasaythemotorized
3、armisthemostadvancedmind-controlledprosthetic,orreplacementlimbevermade.TheycreatedthedevicetohelpreturnsomemusclecontroltoJanScheuermann.Sheissufferingfromadegenerativeneuromusculardiseasethatparalyzedherfromtheneckdown.Shehasnocontrolofherarmsandlegs.Themotorizedrightarmhasafive-fi
4、ngered,fully-jointedhand.ItenablesMs.Scheuermanntopickupandholdobjects,andfeedherself.NeurobiologistAndrewSchwartzledtheUniversityofPittsburghresearchteamthatdevelopedtheprostheticarm.Hesaysresearchersplacedabout200electrodesinthewoman'sleftcerebralcortex.Theleftcerebralcortexisthepa
5、rtofthebrainthatpeopleusetomovetheirrightarm.Dr.Schwartzsaystheelectrodesrecordedwhatthewoman'sbraincellsweredoingwhenshethoughtaboutmovingthearm."Andthatwasenoughinformationthatwecouldthendecodefromthoserecordings,whattheintentionofthesubjectwas,thewayshewantedtomoveherarmandherwris
6、tandcloseherhand.Wecoulddecodetheinformationfromthoseneuronstoallowustodothat."JanScheuermanntookpartina13-week-longprogramtoteachherbraintomovethearm.Butshedidnotneedthatmuchtime.Shewasabletousehermindtomovetheroboticarmafterjusttwoweeksoftraining.Shereportedlytoldresearchersthatshe
7、plannedtousethearmtofeedherselfsomechocolate.Whenshewasabletodothat,itmadetheresearchteamveryhappy.AndrewSchwartzsayshisteamplanstobuildanotherartificialarm,sopeoplelikeMs.Scheuermanncanholdandmoveobjectsusingtwohands."Andreallythesatisfyingpartisthatwe'renotjustmakingamachinemove,we
8、'reactuallyr
此文档下载收益归作者所有