Shadowing Practice: How Depression Affects The Brain - Yale Medicine Explains - Learn English Speaking with Video
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The current standard of care for the treatment of depression is based on what we call the monoamine deficiency hypothesis,
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essentially presuming that one of three neurotransmitters in the brain is deficient or underactive.
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Neurotransmitters can be thought of as the chemical messengers within the brain.
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It's what helps one cell in the brain communicate with another to pass that message along.
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But the reality is there are more than a hundred neurotransmitters in the brain and billions of connections between neurons.
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So we know that that's a limited hypothesis.
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For decades, we thought that the primary pathology, the primary cause of depression was some abnormality in these neurotransmitters,
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specifically serotonin or norepinephrine.
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However, norepinephrine and serotonin did not seem to be able to account for the symptoms of depression in people who had major depression.
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Instead, the chemical messengers between the nerve cells in the higher centers of the brain involved in regulating mood and emotion,
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which include glutamate and GABA, were possibilities as alternative causes for the symptoms of depression.
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We know that these two, which are the most ubiquitous and abundant neurotransmitters in the brain,
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actually regulate how the brain is changing over time and adapting.
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When you are exposed to severe and chronic stress, like people experience when they have depression,
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you lose some of the connections between the nerve cells and the communication in these circuits becomes inefficient and noisy.
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Because of the noisy communication in the circuits involved in regulating mood and emotion,
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we think that the loss of these synaptic connections contributes to the biology of depression.
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It's critical to understand the neurobiology of depression and how the brain plays a role in that for two main reasons.
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One, it helps us understand how the disease develops and progresses.
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And we can start to target treatments based on that.
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There are clear differences between a healthy brain and a depressed brain.
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And the exciting thing is, when you treat that depression effectively, the brain goes back to looking like a healthy brain.
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We recognize that the treatment for depression is a long -term process because for many people, depression is a long -term disorder.
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So we need new treatments.
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We've needed new ways to approach depression for people that haven't responded well to their prior treatments.
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We are in a new era of psychiatry.
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This is a paradigm shift away from a model of monoaminergic
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deficiency to a fuller understanding of the brain as a complex neurochemical organ.
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Vocabulario y notas de pronunciación para esta lección
Este vídeo tiene 28 frases y 415 palabras para practicar shadowing. La parte hablada dura 3:19. El hablante mantiene un ritmo constante de unas 125 palabras por minuto, cómodo para el shadowing. Solo el 80 % de las palabras está entre las 3.000 más comunes del inglés, por lo que el vocabulario es exigente.
Vocabulario clave de este vídeo
15 palabras del vídeo que vale la pena aprender, con su pronunciación y significado:
| Palabra | Pronunciación | Significado |
|---|---|---|
| regulate verbo | /ˈɹɛɡ.jə.leɪt/ | reglamentar |
| mood sustantivo | /muːd/ | humor m ánimo, estado de ánimo |
| emotion sustantivo | /ɪˈməʊ.ʃən/ | afecto, emoción |
| nerve sustantivo | /nɝv/ | nervio |
| messenger sustantivo | /ˈmɛs.ən.d͡ʒɚ/ | mensajero |
| hypothesis sustantivo | /haɪˈpɒθɪsɪs/ | hipótesis, hipótesi |
| noisy adjetivo | /ˈnɔɪzi/ | ruidoso |
| deficiency sustantivo | /dɪˈfɪʃənsi/ | deficiencia, déficit |
| symptom sustantivo | /ˈsɪm(p)təm/ | síntoma |
| essentially adverbio | /ɪˈsɛnʃəli/ | esencialmente, en esencia |
| contribute verbo | /kənˈtɹɪb.jut/ | contribuir, aportar |
| disorder sustantivo | /dɪsˈɔɹdɚ/ | desorden |
| biology sustantivo | /baɪˈɑ.lə.d͡ʒi/ | biología |
| chronic adjetivo | /ˈkɹɑ.nɪk/ | crónico |
| depressed adjetivo | /dɪˈpɹɛst/ | deprimido, abatido |
Gramática en este vídeo
Las estructuras que más usa el hablante, con las palabras exactas del vídeo:
| Estructura | En el vídeo |
|---|---|
| Voz pasiva be + participio pasado — importa lo que ocurre, no quién lo hace | is based · can be thought · are exposed |
| Oraciones de relativo who / which + oración — información extra sobre una persona o cosa | people who had · two, which are |
Pronunciación a tener en cuenta
- Los sonidos de “th”: hypothesis /haɪˈpɒθɪsɪs/, pathology /pəˈθɒləd͡ʒi/
- Los sonidos de “sh” y “zh”: emotion /ɪˈməʊ.ʃən/, deficiency /dɪˈfɪʃənsi/, essentially /ɪˈsɛnʃəli/, deficient /dɪˈfɪʃənt/, inefficient /ˌɪn.ɪˈfɪʃ.ənt/
- Palabras largas — cuida el acento: hypothesis /haɪˈpɒθɪsɪs/, deficiency /dɪˈfɪʃənsi/, essentially /ɪˈsɛnʃəli/, biology /baɪˈɑ.lə.d͡ʒi/, communicate /kəˈmjuːnɪkeɪt/
Cómo practicar con este vídeo
- Escucha el vídeo entero una vez sin hablar y anota las palabras que no conoces.
- Haz shadowing frase por frase a velocidad normal, repitiendo cada una hasta que tu ritmo coincida con el del hablante.
- Grábate y compara con el original, prestando atención a palabras como regulate, mood, emotion.
¿Qué es la Técnica de Shadowing?
Shadowing es una técnica de aprendizaje de idiomas respaldada por la ciencia, desarrollada originalmente para la formación de intérpretes profesionales y popularizada por el políglota Dr. Alexander Arguelles. El método es simple pero poderoso: escuchas audio en inglés nativo y lo repites en voz alta de inmediato, como una sombra que sigue al hablante con solo 1-2 segundos de retraso. A diferencia de la escucha pasiva o los ejercicios de gramática, el shadowing obliga a tu cerebro y músculos de la boca a procesar y reproducir simultáneamente patrones de habla reales. Las investigaciones muestran que mejora significativamente la precisión de la pronunciación, la entonación, el ritmo, el habla conectada, la comprensión auditiva y la fluidez al hablar, convirtiéndola en una de las metodologías más efectivas para la preparación del IELTS Speaking y la comunicación en inglés en el mundo real.