时间:2018-12-07 作者:英语课 分类:60秒科学


英语课

很多人都相信上帝是公平的,关上眼前的一扇窗会为你打开另一扇窗。在最新的科学研究中我们也能得到类似的结论:天生听力有缺陷的人会有更好的视觉。


Recent research explains how the deaf can have extraordinary sight. Christie Nicholson reports


Is it an old wives tale or can deaf people actually see better? Scientists have long thought that the structure of our brain is fixed 1. For instance, from birth the auditory cortex will receive only sound or the visual cortex will receive only visual input 2.


But in the last decade neuroscientists have overthrown 3 this idea in favor of a more malleable 4 brain. 


New research published this week in the journal Nature Neuroscience supports that view. It helps explain why those who are congenitally deaf may have extraordinary sight.


Since the auditory cortex sits there, at birth, waiting for auditory inputs 5 that never come, it starts receiving visual stimuli 6 instead—in cats anyway. And the neural 7 real estate devoted 8 to vision increases.


Researchers compared congenitally deaf cats to hearing cats, and found that deaf cats have enhanced peripheral 9 vision and motion detection.


They confirmed that the part of the auditory cortex that picks up peripheral sound switches to peripheral vision.  


With the deaf it’s especially good to have increased peripheral vision. If you cannot hear a car approaching from the side, it'd be advantageous 10 to actually see it.


—Christie Nicholson

 



1 fixed
adj.固定的,不变的,准备好的;(计算机)固定的
  • Have you two fixed on a date for the wedding yet?你们俩选定婚期了吗?
  • Once the aim is fixed,we should not change it arbitrarily.目标一旦确定,我们就不应该随意改变。
2 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。
3 overthrown
adj.(金属)可锻的;有延展性的;(性格)可训练的
  • Silver is the most malleable of all metals.银是延展性最好的金属。
  • Scientists are finding that the adult human brain is far more malleable than they once thought.科学家发现成人大脑的可塑性远超过他们之前认识到的。
4 inputs
n.输入( input的名词复数 );投入;输入端;输入的数据v.把…输入电脑( input的第三人称单数 )
  • Uncheck the inputs checked for optimization in the previous stage. 不测试那些已经测试过的优化了的以前步骤的inputs.(变量参数)。 来自互联网
  • Just in case, save in a file the inputs obtained at the previous stage. 以防万一,保存以前步骤获得的inputs(变量参数值)到一个文件中去。 来自互联网
5 stimuli
n.刺激(物)
  • It is necessary to curtail or alter normally coexisting stimuli.必需消除或改变正常时并存的刺激。
  • My sweat glands also respond to emotional stimuli.我的汗腺对情绪刺激也能产生反应。
6 neural
adj.神经的,神经系统的
  • The neural network can preferably solve the non- linear problem.利用神经网络建模可以较好地解决非线性问题。
  • The information transmission in neural system depends on neurotransmitters.信息传递的神经途径有赖于神经递质。
7 devoted
adj.忠诚的,忠实的,热心的,献身于...的
  • He devoted his life to the educational cause of the motherland.他为祖国的教育事业贡献了一生。
  • We devoted a lengthy and full discussion to this topic.我们对这个题目进行了长时间的充分讨论。
8 peripheral
adj.周边的,外围的
  • We dealt with the peripheral aspects of a cost reduction program.我们谈到了降低成本计划的一些外围问题。
  • The hotel provides the clerk the service and the peripheral traveling consultation.旅舍提供票务服务和周边旅游咨询。
9 advantageous
adj.有利的;有帮助的
  • Injections of vitamin C are obviously advantageous.注射维生素C显然是有利的。
  • You're in a very advantageous position.你处于非常有利的地位。
学英语单词
a sight for sore eyes
act on something
aggregate adjustment
alternate hemianesthesia
amalrik
antipersonnel hand grenade
aposematic resemblance
backwash-regeneration cycle
Balmer discontinuity
be one up on
billers
bottle method
bottom clearance
calophya meliorata
central business intensity index
chemical energies
climate resource
cold-maceration
commencement of liquefaction
creg
delayed scanning
diffused silicon diode
discount on stock
division rings
dropping character
electric-field meter
elliptical cross section
employee needs for motivation
engle
Eriochrome black T
festyfull
Fontinaleae
gaseous effluent cooler
globe and mail
GTBA
guas
harazd
have your eye on something
helmet
HEXOPAL
horizontal airspace
in the wedding
interflowing
interpersonal relations
inthrones
Ipomoea dissecta
irrigation cooler
Kamenki
Keplerates
landov
luminosity classification
Magyichaung
major corn seed
malvas
Martelange
mean population
mesospore
mesyl
metahyostyly
mevinphos
mycosphaerella platanifolia cooke
non-recognition
Occidental Petroleum Corporation
outfronts
parameter-free representation
Pascalines
pediculosis
peripheral manager interface
piquerist
Platform for Internet Content Selection
practices of law
pressure sounder
Psaronius
pyxine sorediata
radar-coverage indicator
red scad
repeatability of a measuring instrument
Rex cat
rosette leaves
Schallibaum's solution
sgurr
slow-scan sync
solderball
sporadic typhus
sulesomab
swimmy
synaptic space
Taiohae
tapehead
timber hitch
Tolypite
train load
trigger error
two-pin plug
uniform tariff classification
unulcerate
vertebrate feet
waist cincher
Wall of Worry
wanshon
weakly water-wet
whitten effect