<TED Worksheet (Free)>
49. How do our brains process speech?
Gareth Gaskell
<4:21>   July 2020

 

Questions
(PDF)   (Word)

Answers
(PDF)   (Word)

Trascript

<Key Vocabulary>
Write the meaning(s) of each word. Write an example sentence (example sentences) if you need.

(1) comprehension

(2) recognition

(3) parallel

(4) multiple

(5) theory

(6) neuron

(7) cortex

(8) register

(9) recognition

(10) hone

(11) suppress

(12) vital

(13) fragment

(14) emerge

(15) explosion

(16) settle

(17) context

(18) eliminate

(19) prevent

(20) hippocampus

(21) interweave

(22) unconscious

(23) integrate

(24) ensure




===============

≪Questions≫

  1. According to the speech, how many different words does the average 20 year old know? How many different words does the average 60 year old know?   

     20 years old:

                                                 

     60 years old:

                                                 

 

  1. Although spoken words last less than a second, our brain can recognize the right word most of the time. How accurate is it?

 

 

  1. Which of the following statements is true?
  1.  Speech comprehension is similar to reading comprehension.
  2.  Parallel processing is the ability of the brain to do multiple different things simultaneously.
  3.  Reading comprehension is similar to sign language comprehension.
  4.  The neurons in the cortex of the brain lose activity when we try to understand sign language.  

 

  1. When we hear the beginning of a word, several thousand neurons in the brain’s cortex become active. Why?

    

 

 

  1. Although thousands of neurons in the brain’s cortex activate when we hear the beginning of a word, as the word goes on, we reach to the point at which there is only one firing pattern remaining active. What is this point called?

    

 

  1. Up to how many syllables per second can most people comprehend?

    

 

  1. Which of the following statements is not true?
  1. When we remember new words, we usually overwrite the words that we already know.
  2. When we remember new words, we initially store them in a part of the brain called the hippocampus.
  3. When we start hearing a word, our brain registersmultiple possible meanings before the full wordemerges.
  4. The recognition process will move more quickly if the context is clear.

 

  1. In order to transfer new words that we encounter to the cortex, what do we need to do?

 

 




================

≪Answers≫

  1. According to the speech, how many different words does the average 20 year old know? How many different words does the average 60 year old know?   

     20 years old:  

        between 27,000 and 52,000   

     60 years old: 

        between 35,000 and 56,000   

 

  1. Although spoken words last less than a second, our brain can recognize the right word most of the time. How accurate is it?

About 98% (of the time, the brain chooses the correct word.)

 

  1. Which of the following statements is true?
  1.  Speech comprehension is similar to reading comprehension.
  2.  Parallel processing is the ability of the brain to do multiple different things simultaneously.
  3.  Reading comprehension is similar to sign language comprehension.
  4.  The neurons in the cortex of the brain lose activity when we try to understand sign language.  

 

  1. When we hear the beginning of a word, several thousand neurons in the brain’s cortex become active. Why?

       Because with just the beginning of a word, there are many possible matches.

 

 

  1. Although thousands of neurons in the brain’s cortex activate when we hear the beginning of a word, as the word goes on, we reach to the point at which there is only one firing pattern remaining active. What is this point called?

     recognition point

 

  1. Up to how many syllables per second can most people comprehend?

     8 

 

  1. Which of the following statements is not true?
  1. When we remember new words, we usually overwrite the words that we already know.
  2. When we remember new words, we initially store them in a part of the brain called the hippocampus.
  3. When we start hearing a word, our brain registersmultiple possible meanings before the full wordemerges.
  4. The recognition process will move more quickly if the context is clear.

 

  1. In order to transfer new words that we encounter to the cortex, what do we need to do?

     sleep

 

========================

Click here for more TED Talks Worksheets!

========================