Luyện nói tiếng Anh bằng Shadowing qua video: The most important lesson from 83,000 brain scans | Daniel Amen | TEDxOrangeCoast
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Reviewer Gopal In this talk,
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I'm going to give you the single most important lesson my colleagues and I have learned from looking at 83,000 brain scans.
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But first, let me put the lesson into context.
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I am in the middle of seven children.
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Growing up, my father called me a maverick,
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which to him was not a good thing.
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In 1972, the Army called my number,
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and I was trained as an infantry medic,
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where my love of medicine was born.
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But since I truly hated the idea of being shot at,
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or sleeping in the mud,
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I got myself retrained as an X-ray technician and developed a passion for medical imaging.
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As our professors used to say,
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how do you know unless you look?
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In 1979, when I was a second-year medical student,
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someone in my family became seriously suicidal,
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and I took her to see a wonderful psychiatrist.
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Over time, I realized that if he helped her,
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which he did, it would not only save her life,
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but it would also help her children and even her future grandchildren
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as they would be shaped by someone who is happier and more stable.
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I fell in love with psychiatry because I realized it had the potential to change generations of people.
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In 1991, I went to my first lecture on brain SPECT imaging.
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SPECT is a nuclear medicine study that looks at blood flow and activity.
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It looks at how your brain works.
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SPECT was presented as a tool to help psychiatrists get more information to help their patients.
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In that one lecture, my two professional loves,
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medical imaging and psychiatry, came together and quite honestly revolutionized my life Over the next 22 years,
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my colleagues and I would build the world's largest database of brain scans related to behavior on patients from 93 countries.
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SPECT basically tells us three things about the brain.
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Good activity, too little or too much.
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Here is a set of healthy SPECT scans.
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The image on the left shows the outside surface of the brain,
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and a healthy scan shows full, even, symmetrical activity.
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The color is not important,
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it's the shape that matters.
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In the image on the right,
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red equals the areas of high activity,
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and in a healthy brain,
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they're typically in the back part of the brain.
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Here is a healthy scan compared to someone who had two strokes.
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You can see the holes of activity.
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Here's what Alzheimer's looks like,
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where the back half of the brain is deteriorating.
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Did you know that Alzheimer's disease actually starts in the brain 30 to 50 years before you have any symptoms?
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Here's a scan of traumatic brain injury.
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Your brain is soft and your skull is really hard.
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Or drug abuse.
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The real reason not to use drugs?
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They damage your brain.
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Obsessive compulsive disorder where the front part of the brain typically works too hard so that people cannot turn off their thoughts.
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And epilepsy where we we frequently see areas of increased activity.
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In 1992, I went to an all-day conference on brain SPECT imaging.
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It was amazing and mirrored our own early experience using SPECT in psychiatry.
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But at that same meeting,
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researchers started to complain loudly that clinical psychiatrists like me should not be doing scans,
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that they were only for their research.
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Being a maverick and having clinical experience,
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I thought that was a really dumb idea.
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Without imaging, psychiatrists then and even now make diagnoses like they did in 1840 when Abraham Lincoln was depressed
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by talking to people and looking for symptom clusters.
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Imogene was showing us there was a better way.
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Did you know that psychiatrists are the only medical specialists that virtually never look at the organ they treat?
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Think about it.
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Cardiologists look, neurologists look, orthopedic doctors look,
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virtually every other medical specialty's look.
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psychiatrist gets.
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Before imaging, I always felt like I was throwing darts in the dark at my patients and had hurt some of them,
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which horrified me.
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There is a reason that most psychiatric medications have black box warnings.
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Give them to the wrong person and you can precipitate a disaster.
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Early on our imaging work taught us many important lessons such as illnesses like ADHD,
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anxiety, depression and addictions are not single or simple disorders in the brain.
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They all have multiple types.
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For example, here are two patients who have been diagnosed with major depression
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that had virtually the same symptoms yet radically different brains.
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One had really low activity in the brain,
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the other one had really high activity.
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How would you ever know what to do for them unless you actually looked?
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It needs to be tailored to individual brains, not clusters of symptoms.
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Our imaging work also taught us
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that mild traumatic brain injury was a major cause of psychiatric illness
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that ruined people's lives and virtually no one knew about it because they would seize psychiatrists for things like temper problems,
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anxiety, depression, insomnia and they would never look so they would never know.
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Here's a scan of a 15 year old boy who fell down a flight of stairs at the age of three.
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And even though he was unconscious for only a few minutes,
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There was nothing mild about the enduring effect that injury had on this boy's life.
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When I met him at the age of 15,
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he had just been kicked out of his third residential treatment program for violence.
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He needed a brain rehabilitation program,
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not just more medication thrown at him in the dark or behavior therapy,
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which if you think about it, is really cruel.
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To put him on a behavior therapy program when behavior is really an expression of the problem,
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it's not the problem.
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Researchers have found that undiagnosed brain injuries are a major cause of homelessness,
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alcohol abuse, depression, panic attacks, ADHD, and suicide.
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We are in for a pending disaster with the hundreds of thousands of soldiers coming back from Iraq and Afghanistan,
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and virtually no one is looking at the function of their brain.
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As we continued our work with SPECT,
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the criticism grew louder, but so did the lessons.
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Judges and defense attorneys sought our help to understand criminal behavior.
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To date, we have scanned over 500 convicted felons, including 90 murderers.
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Our work taught us that people who do bad things often have troubled brains.
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That was not a surprise.
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But what did surprise us was that many of these brains could be rehabilitated.
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So here's a radical idea.
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What if we evaluated and treated troubled brains rather than simply warehousing them in toxic, stressful environments?
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In my experience, we could save tremendous amounts of money by making these people more functional,
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so when they left prison,
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they could work, support their families, and pay taxes.
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Dostoevsky once said, a society should be judged not by how well it treats its outstanding citizens,
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but by how it treats its criminals.
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Instead of just crime and punishment,
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we should be thinking about crime evaluation and treatment.
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So after 22 years and 83,000 scans,
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the single most important lesson my colleagues and I have learned is that you can literally change people's brains.
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And when you do, you change their life.
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You are not stuck with the brain you have.
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You can make it better,
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and we can prove it.
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My colleagues and I performed the first and largest study on active and retired NFL players,
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showing high levels of damage in these players at a time when the NFL said they didn't know
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if playing football caused long-term brain damage.
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The fact was they didn't want to know.
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That was not a surprise.
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I think if you get most thoughtful nine-year-olds together and you talk about
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the brain is soft about the consistency of soft butter,
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it's housed in a really hard skull that has many sharp bony ridges,
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you know, 28 out of 39 year olds would go,
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probably a bad idea for your life.
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But what really got us excited was the second part of
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the study where we put players on a brain smart program
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and demonstrated that 80% of them could improve in the areas of blood flow,
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memory, and mood, that you are not stuck with the brain you have.
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You can make it better on a Brain Smart program.
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How exciting is that?
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I am so excited.
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Reversing brain damage is a very exciting new frontier,
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but the implications are really much wider.
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Here is the scan of a teenage girl who has ADHD,
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who was cutting herself, failing in school,
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and fighting with her parents.
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When we improved her brain,
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she went from D's and F's to A's and B's and was much more emotionally stable.
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Here's a scan of Nancy.
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Nancy had been diagnosed with dementia,
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and her doctor told her husband that he should find a home for her because within a year,
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she would not know his name.
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But on an intensive brain rehabilitation program,
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Nancy's brain was better, as was her memory.
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And four years later, Nancy still knows her husband's name.
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Or my favorite story to illustrate this point is Andrew,
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a nine-year-old boy who attacked a little girl on the baseball field for no particular reason,
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and at the time was drawing pictures of himself hanging from a tree and shooting other children.
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Andrew was Columbine, Aurora, and Sandy Hook waiting to happen.
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Most psychiatrists would have medicated Andrew as they did Eric Harris
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and the other mass shooters before they committed their awful crimes
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but SPECT imaging taught me that I had to look at his brain
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and not throw darts in the dark at him to understand
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what he needed his SPECT scan showed a cyst the size
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of a golf ball occupying the space of his left him for love.
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No amount of medication or therapy would have helped Andrew.
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When the cyst was removed,
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his behavior completely went back to normal,
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and he became the sweet,
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loving boy he always wanted to be.
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Now 18 years later, Andrew,
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who is my nephew, owns his own home,
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is employed, and pays taxes.
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because someone bothered to look at his brain.
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He has been a better son and will be a better husband, father, and grandfather.
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When you have the privilege of changing someone's brain,
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you not only change his or her life,
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you have the opportunity to change generations to come.
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I'm Dr. Daniel Amen.
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Thank you.
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Video của Daniel Amen mang đến một bài học quan trọng từ 83,000 hình chụp não, không chỉ về y học mà còn về cách thức chúng ta giao tiếp và tương tác với nhau. Khi luyện nói tiếng Anh qua video này, bạn không chỉ cải thiện khả năng ngôn ngữ mà còn mở rộng hiểu biết về tâm lý học và sức khỏe tâm thần. Điều này tạo ra một ngữ cảnh phong phú cho việc sử dụng ngôn ngữ, giúp bạn phát triển không chỉ từ vựng mà còn cả kỹ năng phân tích và tư duy phản biện. Nghe và nhắc lại các cấu trúc câu giúp phát triển kỹ năng luyện nói tiếng anh hiệu quả hơn, nhờ vào việc tái tạo ngữ điệu và phong cách nói của người bản ngữ.
Ngữ pháp & Cấu trúc trong ngữ cảnh
Dưới đây là một số cấu trúc chính được sử dụng trong video mà bạn có thể áp dụng khi luyện nói:
- I realized that...: Cấu trúc này giúp bạn diễn đạt nhận thức hay suy nghĩ của mình về một vấn đề.
- It was not only... but also...: Sử dụng để nhấn mạnh mối liên hệ hoặc sự tương tác giữa hai ý tưởng, mạnh mẽ trong việc phát triển đối thoại.
- Did you know that...: Cách bắt đầu câu hỏi thú vị, thường dùng để tạo sự chú ý và khuyến khích thảo luận.
- This taught us that...: Cấu trúc này khuyến khích diễn giải và rút ra bài học, rất hữu ích khi nói về trải nghiệm cá nhân.
Bằng cách thực hành những cấu trúc này, bạn có thể nâng cao kỹ năng shadowspeak và phát triển cách diễn đạt rõ ràng hơn trong giao tiếp hàng ngày.
Các cạm bẫy phát âm thường gặp
Khi xem video, hãy lưu ý đến những từ hoặc ngữ điệu có thể gây khó khăn cho bạn:
- Psychiatry: Lưu ý phát âm âm “psy” ở đầu từ có thể dễ nhầm lẫn.
- Medication: Từ này thường bị phát âm sai do sự phức tạp của các âm đứng gần nhau.
- Traumatic: Âm đầu “tr” thường khó phát âm với người học tiếng Anh, bạn nên luyện tập để cải thiện.
Bằng cách chú ý đến những dấu hiệu này trong video, bạn sẽ cải thiện khả năng shadow speech và nghe rõ hơn. Đây là lý do tại sao sử dụng phần mềm shadowing cũng có thể là một công cụ học tập hữu ích để luyện tập phát âm và nhấn mạnh.
Phương Pháp Shadowing Là Gì?
Shadowing là kỹ thuật học ngôn ngữ có cơ sở khoa học, ban đầu được phát triển cho chương trình đào tạo phiên dịch viên chuyên nghiệp và được phổ biến rộng rãi bởi nhà đa ngôn ngữ học Dr. Alexander Arguelles. Nguyên lý cốt lõi đơn giản nhưng cực kỳ hiệu quả: bạn nghe tiếng Anh của người bản xứ và lặp lại to ngay lập tức — như một "cái bóng" (shadow) đuổi theo người nói với độ trễ chỉ 1–2 giây. Khác với luyện ngữ pháp hay học từ vựng bị động, Shadowing buộc não bộ và cơ miệng phải đồng thời xử lý và tái tạo ngôn ngữ thực tế. Các nghiên cứu khoa học xác nhận phương pháp này cải thiện đáng kể phát âm, ngữ điệu, nhịp điệu, nối âm, kỹ năng nghe và độ lưu loát khi nói — đặc biệt hiệu quả cho người luyện IELTS Speaking và muốn giao tiếp tiếng Anh tự nhiên như người bản ngữ.