时间:2018-12-24 作者:英语课 分类:Scientific American(三)月


英语课

   Teachers might want to think twice about posting 'no gum chewing' signs in the classroom. It turns out that the sticky substance might help students concentrate. Researchers had two groups of 20 people each listen to a 30-minute recording 1 that included a sequence of numbers. After listening, the participants were asked to remember the sequence. But only one group chewed gum, and they had higher accuracy rates and faster reaction times than the non-gum chewers. Those chewing gum also maintained focus longer during the exercise. The study is in the British Journal of Psycology and contradicts a 2012 study that found gum-chewing decreased shot-term memory performance. The researchers say that gum increases the flow of oxygen to regions of the brain responsible for attention. More oxygen can keep people alert and improve their reflexes. Research also shows that you won't get the same effect by just pretending to chew gum. So the next time you mind is wondering in class, maybe try some gum. If it doesn't help you concentrate, you'll at least be asked to leave.



1 recording
n.录音,记录
  • How long will the recording of the song take?录下这首歌得花多少时间?
  • I want to play you a recording of the rehearsal.我想给你放一下彩排的录像。
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arg-vasopressin
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bank-head
barringer correlation spectrometer
bat-winged
Bentleyville
Boege
bridge input circuit (in process control)
central data collection system
chodes
coated particle
cooperative advertising
cultural divergence
cylinder function
d-ark
digestants
donk bets
dry rot of potato
dysosma versipellis (hance) m.ching
electric tool grinder
emitter node point
equity method of accounting
exchanger heat
ferromagnesium
film run
fixed-point value
fluorindione
foreign companies
freezing shrinkage
freezing up
frizes
guffing
homonormatively
hoppin
how come
Hydrorinkolite
ichthyootoxin
Indian strawberry
jamon serrano
Kleene closure
konked
large number hypothesis
link(age) ratio
low pressure steam generator
methicillin
moving mirror oscillograph
natural-looking
New Musical Express
noddy
non calcic orown soil
nonpiano
Oberpallen
offear
one-rate
Pacific ocean region
passive solar energy heating
physicalnesses
phytoecommunity
pines
pleocellular
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priced catalogue
protogranular texture
Pythagorism
ranked matching
removable sampling tube
reusable equipment
rubber-covered wire
Ruwābah
safety belts
secondary network support
seeing-eye dog
sensan (chonsan)
signal check
stage temperature rise
steam locomotives
stoppages
sullivans
szaara
tax levy
tear from
Terminator, The
the man in the moon
through connection point
Tomes's fibrils
trace gap
trenchantly
tribromo-dichloroethane
turbonite
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turret mechanic
uncambered bottom
vacuum capper
valve support
waterproof wall
xeranthemums
younger-aged