You' re in your car,heading for a crossroads.The light turns yellow,so you decide to step on the gas. Then you see a police car. Almost instantly, you know that stepping on the accelerator(油门）is a mistake.But there's a good chance that you'll do it anyway,says Susan Courtney,a professor in the Department of Psychological& Brain Sciences at Johns Hopkins University.
Thar's because as one area of your brain is recognizing that police car,other areas have already begun carrying out your original plan to speed up."Even if you haven't actually started moving your your brain has already started that plan, Courtney says.And stopping a plan requires a lot of brainpower,Courtney and a team of researchers report in the journal Neuron
The team monitored the brain activity of 21 people as they met with a situation that was a bit like
approaching a crossroads when the night turns yellow.Participants were asked to focus on a central point on a screen and wait for a target to appear somewhere else.Sometimes they were allowed to do the natural thing and shift their gaze to the target when it appeared.However,most of the time,they got a visual order to resist the wish to move their gaze.In other words,they had to cancel an action the brain was already planning to carry out.
The study found that changing an action required three key brain areas to communicate with eight other areas.Previous research had suggested fewer areas were required.The team also found that all the communication had to occur when participants got the order not to move their eyes.
This lag(落后）is why we experience that awful moment when our brain knows we shouldn't step on the accelerator,but our foot does it anyway."If the signal has already been sent,you can only watch it happen without being able to stop it,"Courtney says.The brain's stop system appears to be involved in a lot more than just controlling our bodies."It's not just about stopping your foot or your eyes;it's about changing your plan,"Courtney says.
64.What will people most probably do in the situation according to Susan?
A.They will stop the car.
B.They will drive slowly.
C.They will speed up.
D.They will avoid the police car.
65.What do Courtney's words show?
A.The brain needs a long time to deal with the signal.
B.It is hard for the brain to accept two different signals.
C.Sometimes people will stop an action without realizing it.
D.Changing an action requires different parts of the brain to work together.
66.What does the text want to show?
A.How to make a change.
B.How to stop a dangerous action.
C.Why your brain reacts faster than your body.
D.Why you have trouble in stopping an action.
答案64-66 CDD
Thar's because as one area of your brain is recognizing that police car,other areas have already begun carrying out your original plan to speed up."Even if you haven't actually started moving your your brain has already started that plan, Courtney says.And stopping a plan requires a lot of brainpower,Courtney and a team of researchers report in the journal Neuron
The team monitored the brain activity of 21 people as they met with a situation that was a bit like
approaching a crossroads when the night turns yellow.Participants were asked to focus on a central point on a screen and wait for a target to appear somewhere else.Sometimes they were allowed to do the natural thing and shift their gaze to the target when it appeared.However,most of the time,they got a visual order to resist the wish to move their gaze.In other words,they had to cancel an action the brain was already planning to carry out.
The study found that changing an action required three key brain areas to communicate with eight other areas.Previous research had suggested fewer areas were required.The team also found that all the communication had to occur when participants got the order not to move their eyes.
This lag(落后）is why we experience that awful moment when our brain knows we shouldn't step on the accelerator,but our foot does it anyway."If the signal has already been sent,you can only watch it happen without being able to stop it,"Courtney says.The brain's stop system appears to be involved in a lot more than just controlling our bodies."It's not just about stopping your foot or your eyes;it's about changing your plan,"Courtney says.
64.What will people most probably do in the situation according to Susan?
A.They will stop the car.
B.They will drive slowly.
C.They will speed up.
D.They will avoid the police car.
65.What do Courtney's words show?
A.The brain needs a long time to deal with the signal.
B.It is hard for the brain to accept two different signals.
C.Sometimes people will stop an action without realizing it.
D.Changing an action requires different parts of the brain to work together.
66.What does the text want to show?
A.How to make a change.
B.How to stop a dangerous action.
C.Why your brain reacts faster than your body.
D.Why you have trouble in stopping an action.
答案64-66 CDD
苏19057182-3号