首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Controlling Robots with the Mind Belle, our tiny monkey, was seated in her special chair inside a chamber at our Duke Univers
Controlling Robots with the Mind Belle, our tiny monkey, was seated in her special chair inside a chamber at our Duke Univers
admin
2009-06-15
72
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 currant 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 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
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://kaotiyun.com/show/A2Ld777K
本试题收录于:
职称英语理工类A级题库职称英语分类
0
职称英语理工类A级
职称英语
相关试题推荐
TheboysoldgoodsfromdoortodoorbecauseDr.Kellygavespecialattentiontothecasemainlybecause
WhichofthefollowingisNOTtrueofchronicdiseasesintheUS?Thepassageindicatesthatspendingmoremoneyondiseasepre
WhatIsAnthrax?There’sbeenalotoftalkaboutanthraxonthenewslately.Somepeoplearewordedthatanthraxmaybeconn
TheDangersofSecondhandSmokeMostpeopleknowthatcigarettesmokingisharmfultotheirhealth.Scientificresearchshows
TheDangersofSecondhandSmokeMostpeopleknowthatcigarettesmokingisharmfultotheirhealth.Scientificresearchshows
FDAhasapprovedtheplanofusingHIVtocurecancerinhumans.HIVcanbesafelyusedtocurecanceronlyifthedeadlygenes
HeatandHealthExtremelyhotweatheriscommoninmanypartsoftheworld.Althoughhotweatherjustmakesmostpeoplehot,
BeAlerttoAntimicrobial(抗微生物的)ResistanceTheabilityofmicro-organismsto.findwaystoavoidtheactionofthedrugs
UseofTrademarksAcompanymustdeterminewhetherornottoapplyfortrademarkprotectionunderthefederalLanhamActof
MysteriousNazcaDrawingsOneofthemostmysteriousarchaeologicalspectaclesintheworldistheimmensecomplexofgeomet
随机试题
_____是对组织未来发展方向和目标的构想和设想,是对未来的展望和幢憬。
A.胆B.胃C.肠D.膀胱具有受盛化物功能的脏是
当地下多线换乘车站共用一个站厅公共区时,站厅公共区的建筑面积不应超过()m2。
下列哪一项属于限定性资产管理计划种类?()
定期存款是个人事先约定存期的存款,其利率视期限长短而定,最典型的代表是()。(2010年上半年)
2014年及今后一个时期我国“三农”工作重点不包括()。
一个人与外界接触或与他人交往而使行为和行为倾向产生比较持久改变的过程称为()。
【2018年下】中国古典文学很善于用意象表达作者的思想情感。特别是古典诗词,利用意象传神达意,是诗人的一项重要的艺术手法,历代不乏这方面的大家高手。例如李白的《忆秦娥·箫声咽》,被后人誉为“怀古咏史诗中无与伦比的典范之作”。这首词运用意象体现作者的所感、所
如果你公选成功,如何唱“黑脸”?
2009年,山东省文化事业协调推进。全省拥有博物馆96个,公共图书馆147个,群众艺术馆、文化馆156个。拥有各种艺术表演团体119个,艺术表演场馆90个,新建市、县文化设施48处,乡镇综合文化站572处。国家级、省级文化产业示范基地分别发展到6家和71家
最新回复
(
0
)