<TED Worksheet>
11. How to control someone else’s arm with your brain 
Greg Gage
<5:10> March 2015

 

Questions
(PDF)   (Word)

Answers
(PDF)   (Word)

Transcipt

 

<Questions: How to control someone else’s arm with your brain>
1. According to the speaker, many people are fascinated by the brain, but they don’t know much about how it works. Why?

 

 

2. The equipment used to study neuroscience is very complex and very expensive, and this is causing a problem. What is it?

 





3. What percentage of people will have a neurological disorder? Have we invented any ways to cure these diseases?

 

 

4. When the speaker was a graduate student, he and his lab mate decided to do something. What was it? Why did they do it? 

 

 




5. How many neurons do we have in our brain?

 

 

6. The speaker asked Sam, the female volunteer, to stick out her arm and put electrodes on it. What was he trying to do?

 

 




7. The speaker called up another volunteer, Miguel, and put electrodes on his arm as well. What was he trying to do?

 

 

8. When the speaker squeezed Sam’s hand, nothing happened. Why? 

 

 




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<Answers: How to control someone else’s arm with your brain>
1. According to the speaker, many people are fascinated by the brain, but they don’t know much about how it works. Why?
We don’t teach neuroscience in schools.

 

 

2. The equipment used to study neuroscience is very complex and very expensive, and this is causing a problem. What is it?
People can’t get access to those tools. (You need to dedicate your life and spend six and a half years as a graduate student just to become a neuroscientist to get access to those tools.)

 




3. What percentage of people will have a neurological disorder? Have we invented any ways to cure these diseases?
20%.    No.

 

 

4. When the speaker was a graduate student, he and his lab mate decided to do something. What was it? Why did they do it? 
They decided to take the complex equipment that they had for studying the brain and make it simple enough and affordable enough that anyone you know, an amateur or a high school student, could learn and actually participate in the discovery of neuroscience.

 




5. How many neurons do we have in our brain?
about 80 billion

 

 

6. The speaker asked Sam, the female volunteer, to stick out her arm and put electrodes on it. What was he trying to do?
He was trying to listen to what her brain was going to do. (He was trying to listen to the electrical discharges that her brain would send.)

 

 




7. The speaker called up another volunteer, Miguel, and put electrodes on his arm as well. What was he trying to do?
He was trying to copy Sam’s brain signals and inject them into Miguel’s hand so that Miguel’s hand would move when Sam’s brain told her hand to move.

 

 

8. When the speaker squeezed Sam’s hand, nothing happened. Why? 
Because her brain had to send the message.

 

 

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