Pratica di Shadowing: 1 6 What Illusions Teach Us - Impara a parlare inglese con i video
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51 frasi
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Neuroscience has largely worked out the basic information processing steps that lead to the construction of our conscious experience of the world.
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Light reflects off of surfaces in the world.
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This reflected light passes through the cornea, pupil and lens before being detected by photoreceptors in the retina.
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Let's call the moment that light is detected by cells in the retina time zero.
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Our conscious experience of events in the world does not happen at time zero, but rather a quarter to a third of a second later.
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During that quarter to one third of a second, a tremendous amount of very complex unconscious
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and pre-conscious processing takes the two-dimensional pattern of pixel-like activations at
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the retina to a highly constructed three-dimensional conscious experience of objects and events occurring in the world.
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Some of the work in my lab has focused on the operations
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that happen in this quarter to one third of a second
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before we become conscious of what is apparently happening in the world.
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I have been especially interested in visual illusions
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because they are mistakes made by the constructive processes that go into the creation of our conscious visual experience.
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They are mistakes that can tell us useful information about the processes that go into the construction of our conscious experience.
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In the case of a visual illusion, we might see something that we know is not really there.
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It looks like something is there or is happening that we know cannot really be happening.
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Take this example of what is called apparent motion.
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In one frame, I show two dots, and in the next frame, I show two other dots.
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Even though there is no motion in this image sequence, your visual system creates a motion sequence.
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But this motion sequence is ambiguous.
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Some of you probably see vertical motion, and others see horizontal motion.
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Whatever you see, you can now force your visual system to construct the opposite motion.
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Let's say you're seeing horizontal motion now.
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To force your brain to see vertical motion, cover the right two jumping dots with your hand.
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Now, you'll see the remaining two dots go vertically.
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Now, when you take your hand away, you will continue to see the motion jump back and forth vertically.
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Likewise, if you want to force your visual system to see horizontal motion, cover the bottom two dots with your hand.
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Now the top two will jump back and forth, and when you remove your hand, the horizontal motion will continue.
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This apparent motion is, well, only apparent.
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It's not real.
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There's no net horizontal or vertical motion in the image, and none of the dots are actually moving at all.
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We are experiencing a motion consciously that does not exist.
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It is a construction of those processes that create our conscious experience.
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Apparent motion is a case where we see something that we know is not really out there in the world.
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There are other cases where we fail to see something that we know is, in fact, happening in the world.
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A beautiful example of this occurs in a phenomenon called motion-induced blindness.
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You can see that there are three yellow dots and a blinking fixation point.
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In addition, there's a rotating array of crosses.
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What you'll notice, if you carefully look at the blinking dot in the middle is
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that one or two or all three of the yellow dots will vanish from your consciousness.
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But if you make a sudden eye movement, poof, all three yellow dots appear again.
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So we have cases where we consciously experience something that we know is not really happening in reality,
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as when we see horizontal or vertical apparent motion in a sequence of static dots,
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And we also have cases where we fail to see something that we know is happening in reality.
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So what are we to take from all this?
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While it's safe to assume that there is a reality in itself, it might turn out to function in a radically different way
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than it seems to function to us given what we can glean from our flawed sensory constructions.
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Yet all we have are our senses
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and the constructions of our conscious experience to go on in deciphering what is happening in reality.
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Beyond these limitations, we can only try to do the best
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that we can in our efforts to figure out the nature of reality as it really is, beyond how it may seem to us.
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Vocabolario e note di pronuncia per questa lezione
Questa lezione di conversazione di livello C1 si basa sul video “1 6 What Illusions Teach Us”. Le parole che ritornano più spesso: motion, dot, conscious, experience, happening. Questo video contiene 51 frasi e 754 parole da ripetere con lo shadowing. Il parlato dura 4:17. Chi parla ha un ritmo naturale di circa 176 parole al minuto, vicino a una conversazione quotidiana. Il 82% delle parole rientra nelle 3.000 più comuni dell’inglese; conviene studiare le altre prima di iniziare.
Vocaboli chiave di questo video
Le 15 parole più avanzate del video, con pronuncia e significato:
| Parola | Pronuncia | Significato |
|---|---|---|
| horizontal aggettivo | /ˌhoɹəˈzɑn.təl/ | orizzontale |
| retina sostantivo | /ˈɹɛt.ə.nə/ | retina |
| vertically avverbio | /ˈvɝ.tɪ.kəli/ | verticalmente |
| consciously avverbio | coscientemente | |
| blink verbo | /ˈblɪŋk/ | sbattere le ciglia, ammiccare |
| construct verbo | /ˈkɑn.stɹʌkt/ | costruire |
| dimensional aggettivo | /daɪˈmɛn.ʃə.nəl/ | -dimensionale |
| detect verbo | /dɪˈtɛkt/ | individuare, rilevare |
| blindness sostantivo | /ˈblaɪndnəs/ | cecità |
| cornea sostantivo | /ˈkɔː(ɹ)ni.ə/ | cornea |
| neuroscience sostantivo | neuroscienza | |
| photoreceptor sostantivo | fotorecettore | |
| vanish verbo | /ˈvænɪʃ/ | sparire, svanire |
| radically avverbio | /ˈɹædɪkli/ | radicalmente |
| induce verbo | /ɪnˈduːs/ | persuadere, incitare |
I phrasal verb che sentirai
| Parola | Significato |
|---|---|
| figure out verbo | scoprire, rendersi conto |
| pass through verbo | trapassare |
La grammatica di questo video
Le strutture che chi parla usa di più, con le parole esatte del video:
| Struttura | Nel video |
|---|---|
| Present perfect have/has + participio passato — un’azione passata che conta ancora adesso | has largely worked · has focused · have been |
| Forma passiva be + participio passato — conta ciò che accade, non chi lo fa | being detected · is detected · is called |
Pronuncia a cui fare attenzione
Chi parla usa 3 contrazioni e forme ridotte, come you'll, you're. Pronunciale nella forma breve, così come le senti.
- I suoni “sh” e “zh”: illusion /ɪˈl(j)uːʒ(ə)n/, dimensional /daɪˈmɛn.ʃə.nəl/, fixation /fɪksˈeɪʃən/, vanish /ˈvænɪʃ/, limitation /lɪmɪˈteɪʃən/
- Parole lunghe — attenzione all’accento: horizontal /ˌhoɹəˈzɑn.təl/, vertically /ˈvɝ.tɪ.kəli/, dimensional /daɪˈmɛn.ʃə.nəl/, ambiguous /æmˈbɪɡ.ju.əs/, limitation /lɪmɪˈteɪʃən/
I suoni difficili per chi parla italiano:
- Consonante finale — senza aggiungere una vocale dopo: dot /dɑt/, blink /ˈblɪŋk/, construct /ˈkɑn.stɹʌkt/, detect /dɪˈtɛkt/, blindness /ˈblaɪndnəs/
- /æ/ — più aperta della “e”: vanish /ˈvænɪʃ/, radically /ˈɹædɪkli/, ambiguous /æmˈbɪɡ.ju.əs/, activation /ˌæktəˈveɪʃən/, static /ˈstæt.ɪk/
Come esercitarsi con questo video
- Ascolta tutto il video una volta senza parlare e annota le parole che non conosci.
- Inizia a velocità 0,75×, fai shadowing frase per frase e torna alla velocità normale quando diventa facile.
- Registrati e confronta con l’originale, facendo attenzione a parole come horizontal, retina, vertically.
Cos'è la tecnica dello Shadowing?
Shadowing è una tecnica di apprendimento delle lingue supportata da studi scientifici, originariamente sviluppata per la formazione dei traduttori professionisti e resa popolare dal poliglotta Dr. Alexander Arguelles. Il metodo è semplice ma potente: ascolti un audio in inglese di madrelingua e lo ripeti immediatamente ad alta voce — come un'ombra che segue il parlante con un ritardo di solo 1–2 secondi. A differenza dell'ascolto passivo o degli esercizi di grammatica, lo shadowing costringe il tuo cervello e i muscoli della bocca a elaborare e riprodurre simultaneamente i modelli di discorso reale. La ricerca dimostra che migliora significativamente la precisione della pronuncia, l'intonazione, il ritmo, il discorso connesso, la comprensione dell'ascolto e la fluidità del parlato — rendendolo uno dei metodi più efficaci per la preparazione alla prova di speaking dell'IELTS e per la comunicazione reale in inglese.