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0How reading shapes your brain
Becca
Hello. Welcome to 6 Minute English from BBC Learning English. I'm Becca.
Georgie
And I'm Georgie. Now, Becca, do you read a lot?
Becca
Hmm, I don't read often. I just feel like I don't have the time, Georgie. How about yourself?
Georgie
I would love to read more, but I don't read very much at the moment. I read mostly before bed because I feel like it helps me relax and go to sleep. And today we're talking all about reading. We'll be hearing from some experts about how reading can change our brains, and as usual we'll be learning some useful new words and phrases.
Becca
Let's start with a quiz question. The longest novel in the world is widely thought to be by French author Marcel Proust, a book which, when translated into English, means Remembrance of Things Past. But how many words does the book contain? Is it: a) 130,000, b) 1.3 million, or c) 13 million?
Georgie
OK. The longest novel in the world. I still think 13 million words sounds too many, so I'm going to go with b) 1.3 million.
Becca
Alright. We'll find out at the end of the programme. Now, we might think of reading as like speaking. We're born with the potential to do it and then we learn. It's natural. If something is natural, it's something you were born with or that comes from nature.
Georgie
But Maryanne Wolf, author of the book Reader Come Home, says that this isn't true.
Maryanne Wolf
We think of language as natural, and reading is written language so it must be natural. But it isn't. It isn't natural at all.
Becca
Scientific studies suggest that when we're born, our brains already have the networks that allow our eyes to see and our vocal cords to produce sounds, but not with the pathways we need to read.
Georgie
Let's hear more from psychologist and neuroscientist Rebecca Gotlieb, speaking to the BBC World Service.
Rebecca Gotlieb
From an evolutionary timescale, our brain hasn't had enough time to develop a dedicated reading brain. And so, to build a reading brain network, we co-opt parts of the brain involved in vision and auditory processing, and language, and attention and affect. Reading is really a whole brain process. It involves activation in all four lobes of the cortex.
The process of developing a reading brain alters everything, from brain activity to brain structure and brain connectivity. The power of deep reading is really fundamental to our humanity. When we read deeply, we change our brains and we change who we are.
Becca
Rebecca says that our brains haven't evolved to include a dedicated reading brain. Dedicated here means designed and used for one particular purpose.
Georgie
So, because we don't have a part of the brain designed specifically for reading, when we learn to read, we co-opt other parts of the brain. Co-opt here means to include someone or something, often against their will.
Becca
Right. Learning to read means using lots of different parts of the brain that are designed for other things, and this changes our brain structure compared to someone who hasn't learned to read.
Georgie
And the language we read also shapes our brain. Chinese characters, for example, use symbols instead of letters of the alphabet to represent words and ideas.
Becca
Research suggests that learning to read these symbols activates different areas of the brain to reading an alphabet-based system.
Georgie
Scientists studied a bilingual man who could read and speak Chinese and English. The man suffered a stroke, which affected parts of his brain, including his ability to read Chinese. But amazingly, he was still able to read English.
Becca
Maryanne Wolf explains more to the BBC World Service.
Maryanne Wolf
It's a beautiful example of how the brain's circuit reflects the requirements of Chinese, which inevitably means more visual memory and visual processing of those beautifully intricate symbols or characters.
Georgie
Maryanne says that the brain's circuit is shaped by learning to read Chinese. A circuit is a system of connections.
Becca
The visual qualities of Chinese symbols inevitably mean more visual areas of the brain are developed. Inevitably means in a way that cannot be stopped or avoided.
Georgie
Maryanne describes the symbolic Chinese characters as beautifully intricate. If something is intricate, it has lots of detail.
Becca
And something which also has lots of detail, or certainly lots of words – I asked you, Georgie, how many words are in Marcel Proust's Remembrance of Things Past.
Georgie
I said 1.3 million.
Becca
And you were correct!
Georgie
Yay!
Becca
The book also contains lots of very long sentences, including one with over 900 words.
Georgie
One sentence with 900 words? That is a lot. OK. It's time to recap the language we learned during this programme, starting with natural, which describes something you were born with or that comes from nature.
Becca
Dedicated can describe something that is designed and used for one particular purpose.
Georgie
If you co-opt someone or something, you involve them, sometimes against their will.
Becca
A circuit is a system of connections – for example, in the brain.
Georgie
Inevitably means in a way that cannot be stopped or avoided.
Becca
And intricate describes something which has lots of detail.
Georgie
That's it for this episode of 6 Minute English.
Becca
Thanks for joining us. Goodbye!
Georgie
Bye.
词汇表
natural [ˈnætʃrəl] adj. 天生的，本能的，固有的
dedicated [ˈdedɪkeɪtɪd] adj. 专门的，专用的
co-opt [kəʊˈɒpt] vt. 借用，挪用；拉拢，笼络
circuit [ˈsɜːkɪt] n. （大脑）回路，电路
inevitably [ɪnˈevɪtəbli] adv. 不可避免地，必然地
intricate [ˈɪntrɪkət] adj. 复杂的，错综复杂的
network [ˈnetwɜːk] n. 神经网络，网络
vocal cord [ˈvəʊkl kɔːd] 声带
pathway [ˈpɑːθweɪ] n. 神经通路，路径
neuroscientist [ˈnjʊərəʊsaɪəntɪst] n. 神经科学家，神经学家
evolutionary timescale [ˌiːvəˈluːʃənəri ˈtaɪmskeɪl] 进化时间尺度
auditory [ˈɔːdɪtəri] adj. 听的，听觉的
lobe [ləʊb] n. （脑等器官的）叶
cortex [ˈkɔːteks] n. 大脑皮层
connectivity [ˌkɒnekˈtɪvəti] n. 连接性，连通性
against one's will 违背某人的意愿
Chinese characters 汉字
alphabet-based [ˈælfəbet beɪst] adj. 基于字母的
bilingual [baɪˈlɪŋɡwəl] adj. 双语的，两种语言的
stroke [strəʊk] n. 中风
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