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
Controlling Robots with the Mind Belle, our tiny monkey, was seated in her...
Controlling Robots with the Mind Belle, our tiny monkey, was seated in her...
admin
2020-12-24
30
问题
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 — each wire finer than the finest sewing thread — 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 — Belle’s mere thoughts — 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 Beliefs 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.
Which of the following statements indicates the success of the experiment?
选项
Aelle responded to the robots successfully.
Belle and the robots danced beautifully.
Celle 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/HdsQKKKQ
相关试题推荐
WideWorldofRobots Engineerswhobuildandprogramrobotshavefascinatin...
WideWorldofRobots Engineerswhobuildandprogramrobotshavefascinatin...
WideWorldofRobots Engineerswhobuildandprogramrobotshavefascinatin...
WideWorldofRobots Engineerswhobuildandprogramrobotshavefascinatin...
WideWorldofRobots Engineerswhobuildandprogramrobotshavefascinatin...
WideWorldofRobots Engineerswhobuildandprogramrobotshavefascinatin...
WideWorldofRobots Engineerswhobuildandprogramrobotshavefascinatin...
下面的短文有15处空白,请根据短文内容为每处空白确定1个最佳选项。 YoungAdultsWhoExerciseGetHigher...
下面的短文有15处空白,请根据短文内容为每处空白确定1个最佳选项。 YoungAdultsWhoExerciseGetHigher...
下面的短文有15处空白,请根据短文内容为每处空白确定1个最佳选项。 YoungAdultsWhoExerciseGetHigher...
随机试题
下列试验有助于诊断桡骨茎突狭窄性腱鞘炎的是()。 A.密耳试验 B.屈腕试验
卖方在指定的装运港把货物送过船舷后交付,货过船舷后须由买方承担货物的全部费用以及
关于后张法预应力筋的张拉控制,下列说法正确的是()。
如果当期应收账款减少,即收回上一期的应收账款_______本期产生的应收账款,销
Thepriceofvegetablesvariesaccordin
有胚胎毒性的中药是
当今世界,科技的进步和知识的创新已经成为经济发展的第一推动力,而科技进步和知识创新的主体是知识分子,离开了知识分子,科技进步和知识创新只能是一句空话,生产...
半殖民地半封建社会的社会性质,决定了近代中国不可能是一个独立的民主国家,外部没有民族独立,而受帝国主义压迫;内部没有起码的资产阶级民主,反动统治阶级凭借强...
王某从公司分得股息10000元,则王某的所得应按()项目征税。A.工资、薪金所得B.劳务报酬所得C.合伙企业个人投资者的生产、经营所得D.利息、股息
在工作计划完善之后,社区工作就进入了实施计划的阶段。这一阶段的工作重点主要是( )。A.社区资源管理 B.明确目标 C.设计方案 D.执行社区工作