时间:2019-01-30 作者:英语课 分类:60秒科学


英语课

When an Iraqi reporter threw his shoe at President Bush, University of Washington neurologists were delighted. But not because of politics. The fling was just real-world evidence of a theory they were testing. As the shoe flew, Bush ducked while Iraqi Prime Minister Maliki, who was standing 1 right beside him, barely flinched 2. The reason, the researchers say, is that we have a dual 3 vision system. Our brains "see" things well before our eyes do. Their report is in the June 11th issue of the journal Current Biology.


The scientists contend that Bush ducked because his brain’s action pathway categorized the trajectory 4 of the shoe as a threat well before his perception pathway began to track its flight. Meanwhile, Maliki realized the shoe wasn’t headed his way and didn’t take evasive action. The scientists say this mirrors computer simulations where test subjects respond much faster to approaching visual stimuli 5 when those objects are on a trajectory lined up with their heads. Basically, your brain will tell you whether an item is a threat even before you know you saw it. The findings could apply to everyone from ballplayers to loafers.


—Adam Hinterthuer


 



n.持续,地位;adj.永久的,不动的,直立的,不流动的
  • After the earthquake only a few houses were left standing.地震过后只有几幢房屋还立着。
  • They're standing out against any change in the law.他们坚决反对对法律做任何修改。
v.(因危险和痛苦)退缩,畏惧( flinch的过去式和过去分词 )
  • He flinched at the sight of the blood. 他一见到血就往后退。
  • This tough Corsican never flinched or failed. 这个刚毅的科西嘉人从来没有任何畏缩或沮丧。 来自辞典例句
adj.双的;二重的,二元的
  • The people's Republic of China does not recognize dual nationality for any Chinese national.中华人民共和国不承认中国公民具有双重国籍。
  • He has dual role as composer and conductor.他兼作曲家及指挥的双重身分。
n.弹道,轨道
  • It is not difficult to sketch the subsequent trajectory.很容易描绘出它们最终的轨迹。
  • The path followed by a projectile is called its trajectory.抛物体所循的路径称为它的轨道。
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。
标签: 60秒科学
学英语单词
aberration of lens
acutuminine
allday
AMBLYCEPIDAE
analog-digital commutator
anthropology and dance
antitransmit
as...as ever
Assomada
axisymmetrical gun
bank sided
behind-the-wheel
benaves
bonanova
boom rig
brevitype
bugsy
calamagrostis halleriana dc.
casualty department
cerna hora mt.
certificate of deposit rollover
Chasico
circular depolarization (ratio)
client programs
coenogamete phenomenon
coming - out party
conspires
contoes
craney
date train wheel support
derivatizing reaction vial
dewes
di-thiosemicarbazone
direction of welding
double-gaited
dough mill
Durban-Corbieres
Eastern Samoa
electrohydraulic control system
Ellsinore
enumerative statistics
event tracer
exciting experience
Eykan, Mys
ferrimagnetic state
Folletts
follow sth through
Gallaeci
genus drynarias
graphical structure
guarantees of official sterling balance
hinksey
hot-metal charge
icehouse climate
Ihdin
input output processor
instrumentation and control
it's me
Jabal Sudayk
kawarimonoes
language sheet
laparotomizes
Lookout Mobile Security
mean water neap tides
micro-farad
Moorehead's retractor
musculus sphincter ani internus
Mvouti
nitropenton
Nyantakara
occlusion gas
positive dyed image
positron lifetime spectrometer
pressure center
principal unit assembling
propeller turning direction
quiet take-off and landing
redundant robot
rehydratable packaging
responsible party
Roegneria formosana
rosetter
runkel
satin back
serried
shipmodel
side-glance
slice preparation
Sphecius speciosis
Spinozists
sporadic lemophilia
srinagar rug
struggle to one's feet
swither
Triadenyl
triangular determinant
turbulent Plandtl number
UV cell
vanmen
verdha
well filled
X-ray resist