首页
财务会计
医药卫生
金融经济
考公考编
外语考试
学历提升
职称考试
建筑工程
IT考试
其他
登录
职称考试
共用题干 第三篇Controlling Robots with the MindBelle,our tiny monkey,was seated in ...
共用题干 第三篇Controlling Robots with the MindBelle,our tiny monkey,was seated in ...
admin
2020-12-24
8
问题
共用题干
第三篇
Controlling Robots with the Mind
Belle,our tiny monkey,was seated in her special chair inside a chamber at our Duke
University lab. Her right hand grasped a joystick(操纵杆)as she watched a horizontal
series of lights on a display panel.She knew that if a light suddenly shone and she moved
the joystick left or right to correspond to its position,she would be sent a drop of fruit juice into her mouth.
Belle wore a cap glued to her head.Under it were four plastic connectors,which fed
arrays of microwires一each wire finer than the finest sewing thread一into different regions of
Belle's motor cortex(脑皮层),the brain tissue that plans movements and sends
instructions. Each of the 100 microwires lay beside a single motor neuron(神经元).When
a neuron produced an electrical discharge,the adjacent microwire would capture the current
and send it up through a small wiring bundle that ran from Belle's cap to a box of electronics
on a table next to the booth.The box,in turn,was linked to two computers,one next
door and the other half a country away.
After months of hard work,we were about to test the idea that we could reliably
translate the raw electrical activity in a living being's brain一Belle's mere thoughts一into
signals that could direct the actions of a robot.We had assembled a multijointed robot arm
in this room,away from Belle's view,which she would control for the first time.As soon as Belle's brain sensed a lit spot on the panel,electronics in the box running two real-time
mathematical models would rapidly analyze the tiny action potentials produced by her brain
cells.Our lab computer would convert the electrical patterns into instructions that would
direct the robot arm.Six hundred miles north,in Cambridge,Mass,a different computer
would produce the same actions in another robot arm built by Mandayam A. Srinivasan.If
we had done everything correctly,the two robot arms would behave as Belle's arm did,at
exactly the same time.
Finally the moment came.We randomly switched on lights in front of Belle,and she
immediately moved her joystick back and forth to correspond to them.Our robot arm moved
similarly to Belle's real arm.So did Srinivasan's.Belle and the robots moved in synchrony
(同步),like dancers choreographed(设计舞蹈动作)by the electrical impulses sparking in
Belle's mind.
In the two years since that day,our labs and several others have advanced
neuroscience,computer science and microelectronics to create ways for rats,monkeys and
eventually humans to control mechanical and electronic machines purely by"thinking
through,"or imagining,the motions.Our immediate goal is to help a person who has been
unable to move by a neurological(神经的)disorder or spinal cord(脊髓)injury, but
whose motor cortex is spared,to operate a wheelchair or a robotic limb.
选项
Which of the following statements indicates the success of the experiment?
A:Belle responded to the robots successfully.
B:Belle and the robots danced beautifully.
C:Belle and the robots responded to the lights at the same time.
D:The two robots moved the joysticks successively.
答案
C
解析
转载请注明原文地址:https://ti.zuoweng.com/ti/RNlQKKKQ
相关试题推荐
共用题干 MoreAboutAlzheimer'sDiseaseScientistshavedevelopedskinteststha...
共用题干 WronglyConvictedManandHisAccuserTellTheirStoryNEWYORKNY,Janua...
共用题干 WronglyConvictedManandHisAccuserTellTheirStoryNEWYORKNY,Janua...
共用题干 WronglyConvictedManandHisAccuserTellTheirStoryNEWYORKNY,Janua...
共用题干 第三篇FirstSelf-containedHeartImplantedApatientonthebrink(边缘)ofdea...
共用题干 第三篇FirstSelf-containedHeartImplantedApatientonthebrink(边缘)ofdea...
共用题干 第三篇FirstSelf-containedHeartImplantedApatientonthebrink(边缘)ofdea...
共用题干 第二篇Around45%oftheUK'scarbondioxideemissionscomefromtheenergy...
共用题干 第二篇Around45%oftheUK'scarbondioxideemissionscomefromtheenergy...
共用题干 第一篇ANewStrategytoOvercomeBreastCancerPost-menopausal(绝经后的)womenw...
随机试题
患者,男性,35岁。近2个月反复咳嗽、乏力,经抗菌药物治疗无明显好转,近1周偶有
多发性骨髓瘤的特征不包括下列哪项 A、骨质疏松 B、贫血 C、反复感染
以下属于评价信贷资产质量的指标的是( )
房地产经纪人员应该掌握的职业技能包括( )。
隧道照明,对瓦斯地段不得超过( )V。 A、220 B、110 C、
胎头宫缩时暴露于阴道口,当宫缩间歇时又缩回阴道内,称为A:胎头着冠B:胎头拨露C:胎头俯屈D:胎头仰伸E:胎头下降
患者女,36岁。胸胁胀闷,走窜疼痛,急躁易怒,胁下痞块,刺痛拒按,痛经,经色紫黯有块,舌质紫黯或见瘀斑,脉弦涩,其临床意义是A.气随血脱证B.气滞血瘀证C.
供暖系统中供暖管道与可燃物之间保持的距离当温度大于100℃时,不小于()mm或采用不燃材料隔热;当温度不大于100℃时,不小于50mm或采用不燃材料隔热。A.
某建筑进行内部装修,一名电工违章电焊施工作业,结果引发火灾,造成3人死亡。根据《中华人民共和国刑法》,对该电工依法追究刑事责任。下列定罪中,正确的是()。A.重
可引起大叶性肺炎的是A.肺炎链球菌B.A群链球菌C.流感嗜血杆菌D.金黄色葡萄球菌E.肠致病型大肠埃希菌