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
21
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.
Belle would be fed some fruit juice if she
选项
A grasped the joystick.
B moved the joystick to the side of the light.
C sat quietly in a special chair.
D watched lights on a display panel.
答案
B
解析
转载请注明原文地址:https://ti.zuoweng.com/ti/KN9QKKKQ
相关试题推荐
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...
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
口底、颌下和颈部的急性蜂窝织炎可并发 A.菌血症 B.败血症 C.化脓性海
149)输电线路的阻抗角与导线的材料有关,同型号的导线,截面越大,阻抗越大,阻抗
2018年6月即将在青岛举行的上海合作组织峰会,主旋律是弘扬“上海精神”,“上海
可以选择外部人员的内部晋升制是()。
远期疗效评估的工作程序不包括( )。
氰化高铁血红蛋白吸收峰(nm)是在
教育心理学对教育实践具有()作用。 A.描述B验证 C.解释D.预测
患儿,9岁,发热,咽痛1日就诊,体检:体温38.9℃,咽部充血,双扁桃腺肿大Ⅱ度,有脓性分泌物,舌红,乳头粗,颈部及躯干见红色鸡皮疹,压之退血,腋窝处明显...
共用题干 某货运企业的年设计运输能力为31.3亿吨公里,平均每万吨公里运费收入、可变成本分别为5000元、3600元。该企业的年固定总成本为18000万...
某投资者计划在未来5年的每年末存入银行30000元,存款年利率为3%,由此所形成的年金类型是:A:普通年金B:先付年金C:递延年金D:永久年金