时间:2018-12-24 作者:英语课 分类:Scientific American(四)月


英语课

 This is Scientific American 60 Second Science, I am Sophie Bushwick, go a minute?


 
It’s tough to pick a familiar face out of a crowd—but focusing on a known voice in a noisy room is easy. And a new study scanned volunteers’ brains to look at how we solve the so-called cocktail 1 party problem. The work is in the journal Nature.
 
Researchers recorded the activity of the subject’s cerebral 2 cortexes while playing them sentences spoken by different voices. First, the subjects listened to individual sentences and reported key features of each one. Then, they heard two different sentences played at the same time, but had to listen to and recall details from only one voice.
 
Each voice drew a particular response from the auditory cortex. And even with an extra sentence playing simultaneously 3, researchers saw that the cortex responded specifically to the voice that the subject was focusing on. This finding indicates that our brains process sound based not only on the audio input 4 they receive, but also on our listening goals. And it could lead to speech recognition systems that are accurate in crowds—even at a cocktail party.
 
Thanks for the minute for Scientific Americans 60 second Science, I am Sophie Bushwick.

1 cocktail
n.鸡尾酒;餐前开胃小吃;混合物
  • We invited some foreign friends for a cocktail party.我们邀请了一些外国朋友参加鸡尾酒会。
  • At a cocktail party in Hollywood,I was introduced to Charlie Chaplin.在好莱坞的一次鸡尾酒会上,人家把我介绍给查理·卓别林。
2 cerebral
adj.脑的,大脑的;有智力的,理智型的
  • Your left cerebral hemisphere controls the right-hand side of your body.你的左半脑控制身体的右半身。
  • He is a precise,methodical,cerebral man who carefully chooses his words.他是一个一丝不苟、有条理和理智的人,措辞谨慎。
3 simultaneously
adv.同时发生地,同时进行地
  • The radar beam can track a number of targets almost simultaneously.雷达波几乎可以同时追着多个目标。
  • The Windows allow a computer user to execute multiple programs simultaneously.Windows允许计算机用户同时运行多个程序。
4 input
n.输入(物);投入;vt.把(数据等)输入计算机
  • I will forever be grateful for his considerable input.我将永远感激他的大量投入。
  • All this information had to be input onto the computer.所有这些信息都必须输入计算机。
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AAGC
Aeschynomene americana
Allium schoenoprasum L.
amalgam plugger
application-development language
artificial stocking
bandage gauze
bat ribbon
binary synchronous device data block
bind-days
boysen berry
Brissaud's dwarf
chemical anticarcinogenic drug
chemoconvulsant
cherryville
Chrysomelidae
concolor
counter sample
cupids
dichloramine
disodic alkaliine
drill-sharpening machine
Echogynography
ecotonal
electrochemistry at liquid-liquid interface
electronic sign
Entale
extraneous term
fenoxazoline
fine ream
foamed polystyrene chaplet
garage shop
genus epipactiss
genus Sagina
gleewoman
haroutounian
heteropolyanion
homotopy type invariant
hot-finished material
Idb-1016
idea champions
incomplete compaction
injurious weed
isolar
jet cutting car
junta
ketchuppy
leptosols
load bearing characteristic
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medicinal perfume
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Midgard, Midgarth
mikester
military characteristics
monkey bread
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off-set seismic operation
optical fiber source
oral traditions
overfarm
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oximctry
parachute troops
partial cracking
piston ring groove cleaner
Ponte di Legno
portal-type frame
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quicktongued
ranque
rascally
salvage and salvage charge
sharpness of vision
Ship's Sinking
sovann
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Spy Wednesday
stamate
teleprocessor
Theilman
thiocolchicine
thread fasteners
tibetan high
Tiedemann's nerve
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trial by media
unstainable
vapor compression refrigerating machine
vertimeter
VWAP
Waddingworth
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wet snow
wet-chemical technique
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