跟读练习: AP Psychology- The Human Brain - 通过YouTube学习英语口语
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Hi, my name is Nicole McIntyre and I'd like to talk to you about psychology.
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Hi, my name is Nicole McIntyre and I'd like to talk to you about psychology.
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Psychology is interesting to study because of how it relates to other sciences and to the real world.
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Today, let's study the human brain.
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The brain is easily the most intricate and interesting psychological phenomenon that we know.
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If you're taking AP Psychology,
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an intro-level psychology class in college,
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or if you're just curious about the most important thing that makes us human,
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you'll want to get to know the brain.
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The brain is a part of the nervous system,
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or more specifically, the central nervous system.
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The CNS is comprised of the brain and the spinal cord,
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and it makes all the big decisions for your body.
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But what those big decisions are and how it makes them is complicated.
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As you probably imagine, it's very difficult to study brain activity.
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The brain does nothing on the outside to indicate anything it might be doing on the inside.
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This is why we use technology to try and find connections between the brain and behavior.
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We have EEGs, CT and PET scans,
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MRI and fMRI machines, all of which provide many details about the brain structure,
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but only some of which,
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the EEG, PET scan and fMRI,
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show us exactly how the brain functions.
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Now back before we had this kind of technology and even now,
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an important way in which we study the brain is through accidents.
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In 1848, a railroad worker named Phineas Gage was involved in a gunpowder accident
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that sent a metal rod through the front part of his skull.
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Though he miraculously survived and retained his ability to function completely as before,
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the brain damage to his frontal lobe somehow altered his entire personality.
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He was no longer himself,
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but rather mean, emotional, and impulsive.
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And so researchers concluded that the areas in which the brain was damaged must have controlled behavior.
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The idea that different areas of the brain control different parts of behavior is called brain localization.
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And brain localization can help us divide the brain into separate categories so that we can study both its structure and function.
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There are three major parts of the brain,
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the hindbrain, midbrain, and forebrain,
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each of which serve different purposes.
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The hindbrain rests at the top of the spinal cord and is the oldest,
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most ancient part of the brain.
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It evolved first and has kept us alive by controlling our most basic biological functions.
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It consists of the brainstem,
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the central connection between the spinal cord and our skull,
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the medulla, which controls involuntary but necessary actions such as our breathing,
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blood pressure, and heart rate,
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the pons, which passes neural information between the three brain regions and helps coordinate movement such as facial expression,
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the reticular activating system that controls arousal or our alertness,
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the thalamus, which receives and relays sensory information,
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and our cerebellum, which means little brain,
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because it controls many important things like muscle movement,
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balance, and emotions, and because it looks like a literal little brain attached to the underside of our hindbrain.
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The midbrain follows, sitting just above the spinal cord and just below the forebrain,
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and primarily functions using sensory information to coordinate simple movements.
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Its major components are the tectum and tegmentum,
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the brain's roof and floor.
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Lastly is the forebrain, containing our limbic system,
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or the emotional center of our brain.
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You may recall that the forebrain is where Phineas Gage sustained the most damage.
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Had the rod hit him any lower,
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he may have died, but instead he just changed.
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This is because the limbic system contains three very important things that allow for higher brain function and human behavior.
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The hippocampus is involved in processing new learning and new memories.
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The amygdala is more involved in the expression of emotions,
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such as anger and frustration.
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And the hypothalamus controls many things,
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such as our body's temperature,
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water balance and hunger, our sympathetic nervous system and endocrine system,
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and even our sex drive and sleeping patterns.
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The forebrain is essentially the most human part of our brain,
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and it's the part that we're most familiar with.
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Part of it is the cerebral cortex,
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all that pink and wrinkly stuff that we know and love.
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This is the gray matter full of densely packed neurons that cover the entire brain.
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As we grow and develop,
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our cerebral cortex grows as well,
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allowing it to wrinkle even more and fill our brain with more and more neural connections.
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The cerebral cortex covers our two hemispheres,
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left and right, each specializing in different functions,
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which is what we call brain laterization or hemispheric specialization.
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The left hemisphere is involved in language processing and logical tasks,
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while the right hemisphere is more involved in creative and spatial reasoning.
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The hemispheres are connected by the corpus callosum,
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a very important band of nerve fibers between them that allows them to work together.
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But neuropsychologist Roger Sperry discovered that each hemisphere can also operate independently of the other in split brain patients.
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These patients are so called
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because of a surgery they obtained to have their corpus callosum cut in order to treat severe seizures.
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Okay, so bear with me.
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I know that you've been given a lot of ways to categorize the brain already,
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but the cerebral cortex can still be broken down even further.
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Within each hemisphere of the cortex are four distinct lobes,
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the frontal, parietal, temporal, and occipital.
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These lobes are categorized based on how they receive sensory information and control muscle movements.
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What What comes in is your sensory cortex and what goes out is your motor cortex.
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In the frontal lobe, higher level thinking takes place.
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Living right behind your eyes is your prefrontal cortex,
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which can be thought of as your brain's boss of sorts.
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It's associated with executive thought processing and emotional control.
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It thinks ahead to pursue success and to foresee consequence.
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It allows for judgment, abstract thought,
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a lot of our personality,
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and even speech, because also within the frontal lobe,
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but typically only in the left hemisphere,
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is one of the brain's two language processing centers.
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The Broca's area was discovered by Paul Broca as able to control speech production
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when he noticed that damage to this area caused expressive aphasia,
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or the inability to speak.
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In the parietal lobe, we have our somatosensory cortex,
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or as I called it before,
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our sensory cortex, which receives touch sensations,
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as well as information about our body's temperature and position.
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The occipital lobes are furthest from our eyes but house our visual cortex.
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When your right eye sends visual information to the brain,
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it's interpreted by your right occipital lobe,
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and when your left eye does so,
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it's interpreted by your left occipital lobe.
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And the temporal lobes right by our ears process sound.
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Sound, unlike sight, is not lateralized,
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and when it enters our left ear,
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is processed in both hemispheres.
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And this is also where our second language processing center is located, Wernicke's area.
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This center interprets speech, and when damaged,
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cause receptive aphasia, or the inability to comprehend speech.
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The rest of the cerebral cortex is made up of association areas,
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which deal with complicated, sophisticated thinking,
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the stuff that you're always trying to get better at,
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like learning, remembering, or being funny.
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And though while because the brain is localized and has these unimaginably complex functions that come from its very specific structure,
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it's still somewhat flexible.
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The brain's plasticity is what allows it to adapt, grow, and heal itself.
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I know, that was a lot of biology for a discussion on psychology,
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but psychology is very complex and has a lot of different parts to it,
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not unlike the human brain itself.
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Thank you for listening today and learning about the brain structure and function.
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Goodbye!
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背景与上下文
在这段视频中，讲者Nicole McIntyre与我们探讨了心理学，特别是人类大脑的重要性。心理学不仅与其他科学有联系，而且对理解我们的生活和行为有着深远的影响。大脑作为中枢神经系统的重要组成部分，负责身体的许多重大决定。本段内容旨在帮助英语学习者更好地理解大脑的功能及其在日常生活中的应用，并为您提供提高口语能力的工具。
日常沟通的五大短语
- “心理学很有趣” - 表达对心理学的兴趣。
- “大脑是一个复杂的现象” - 说明大脑的复杂性。
- “我们使用技术来研究大脑” - 讨论如何利用科技来理解大脑。
- “不同区域控制不同的行为” - 引入大脑局部化的概念。
- “这有助于我们理解行为的根本原因” - 进一步阐述行为与大脑之间的联系。
逐步跟读指南
为了提高您的英语口语能力，并掌握更复杂的表达方式，遵循以下逐步跟读（shadow speak）指南：
- 选择视频片段：找出视频中您感兴趣的部分，特别是与大脑和心理学相关的段落。
- 分段聆听：将较长的句子分成较短的部分，逐句聆听。可以使用“看YouTube学英语”的方式，将每一句话反复听几遍。
- 模仿发音：播放语音后，尝试跟随讲者的语速和语调进行模仿，这是一种有效的雅思口语练习。
- 记录并回放：录下您自己的发音，然后与原始视频进行比较，注意差异并进行调整。
- 反复练习：反复进行这个过程，以便熟练掌握句子的结构和发音, 切忌急于求成，逐步提高准确度。
通过这样的方法，您不仅能够增强自己在英语口语表达方面的能力，还能更深入地理解大脑的复杂功能。您也可以使用“shadow speech”技巧，以及不断回顾视频中的内容，来提高自己的英语水平。
什么是跟读法？
跟读法 (Shadowing) 是一种有科学依据的语言学习技巧，最初开发用于专业口译员的培训，并由多语言者Alexander Arguelles博士普及。这个方法简单而强大：您在听英语母语原声的同时立即大声重复——就像是一个延迟1-2秒紧跟说话者的影子。与被动听力或语法练习不同，跟读法强迫您的大脑和口腔肌肉同时处理并模仿真实的讲话模式。研究表明它能显着提高发音准确性，语调，节奏，连读，听力理解和口语流利度——使其成为雅思口语备考和真实英语交流最有效的方法之一。