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 Unive
Controlling Robots with the Mind Belle, our tiny monkey, was seated in her special chair inside a chamber at our Duke Unive
admin
2008-09-21
75
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), tile 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 multi-jointed 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 Sriniwlsan’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 codex 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/l6Ld777K
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
CulturalDifferencesPeoplefromdifferentculturessometimesdothingsthatmakeeachotheruncomfortable,sometimeswithou
MedicineAwardKicksoffNobelPrizeAnnouncementsTwoscientistswhohavewonpraiseforresearchintothegrowthofcancer
ScientistsDevelopWaysofDetectingHeartAttackGermanresearchershave(1)anewgenerationofdefibrillatorsandearlywarn
ThetiesymbolizesallofthefollowingexceptWhydoesBlairsometimesshowupinaformaleventwithoutatie?
A.ImportanceofstayingintellectuallyactiveB.Effectsofagingonaperson’srecallabilityC.Short-termmemoryversuslong-te
Welearnfromthefirstparagraphthatlaughterinalaughterclinic,doctors
Believeitornot,opticalillusion(错觉)cancuthighwaycrashes.Japanisacaseinpoint.Ithasreducedautomobilecrasheson
Abouttwentyyearsago,allimportantresourcesinourcountrywereallocatedbythecentralgovernment.
ThispoemdepictsthebeautifulsceneryofasmalltownintheSouth.
随机试题
若某肿瘤可检测到CD20,则该肿瘤可能是
能疏肝理气,和中,化痰的中药有
建设工程项目的信息管理是通过对各个系统、各项工作和各种数据的管理,使项目的()能方便和有效地获取、存储、存档、处理的交流。
规范性原则、易解性原则和易得性原则属于信息()应遵循的要求。
(2008年)张某拟设立个人独资企业。2007年3月2日,张某将设立申请书等申请设立登记文件提交到拟定设立的个人独资企业所在地工商行政管理机关,设立申请书的有关内容如下:张某以其房产、劳务和现金3万元出资;企业名称为A贸易有限公司。3月10日,该
“世界四大博物馆”包括()。[2013年河南真题]
将教学目标分成认知、情感、动作技能三大领域的教育学家是()。
在古代,男子成年后对年龄都有专门的代称,其中五十岁叫做()。
2015年4月22日至24日,亚非领导人会议和万隆会议60周年纪念活动在印度尼西亚首都雅加达举行。本次亚非领导人会议的主题是
Readthefollowingtextsfromanarticleinwhichpeopletalkedaboutsomethingconcerningenvironmentalprotection.Forquestio
最新回复
(
0
)