📢 Sound science — why we make you speak
Our training keeps your mouth open the whole way through, and the same question comes back every time: can I not just follow along in my head? The short answer is that reading with your eyes and reading with your voice are different jobs for the brain. But a misunderstanding arrives attached to that answer, and the story is not finished until both halves are on the table.
Read silently and the work ends at recognising the letters and pulling up the meaning. Read the same line out loud and three things are added: planning the articulation, moving the mouth and tongue to carry it out, and hearing your own voice come back. Input and output turn in one loop instead of one direction. Work presented by Tohoku University in Japan, from the lab of Ryuta Kawashima, has long treated reading aloud and simple arithmetic as tasks that put the prefrontal cortex to work — the front of the brain, the part that holds and orders whatever you are in the middle of doing.
Read a recipe through and you know the dish. Cook it once and your hands know it. Both are worth doing and they are not the same practice. Language is like that. A sentence you have only ever read is a sentence your mouth has never met.
This is where people tie themselves in knots. “Reading aloud works the brain” and “speaking along with the script open is fake shadowing” sit on different levels, and neither one cancels the other. Reading aloud earns its place — as speaking practice, and as reading practice. It is not listening practice. With the text in front of you the answer is already there, so the ear has no reason to strain, and the straining is the exercise. Granting reading aloud its value and calling it listening training are two completely different acts. [[fake-shadowing]] takes that apart in detail; [[what-is-shadowing]] sets out what shadowing is in the first place.
The same act — saying words out loud — needs a different setup depending on what you are after.
On a train or in an open office, shape the words without voicing them. The vocal folds rest while the articulators still move, and that is worth considerably more than nothing. Even so, keep one slot in the day where the sound actually comes out — the loop only closes when there is something for you to hear.
Source
The reading-aloud and prefrontal cortex framing follows the research direction Tohoku University presents for Ryuta Kawashima (tohoku.ac.jp research highlights). Cerebral activity during the reading aloud of long sentences has been imaged with fMRI in NeuroReport (2003, PMID 14502076). For when the script comes off see [[fake-shadowing]]; for what shadowing is, [[what-is-shadowing]]; for why sound has to come before print, [[listening-first-order]]. — Not carried over from the Korean edition: the original blog post’s activation percentage for reading aloud, its line about gaming brains resembling dementia, and its claim that everyone eventually develops dementia — none of the three had a primary source we could check. Preventing or treating illness is likewise not a claim of this article.
Read the original →※ This article summarizes and restructures the key points of the source above.
🗣 Shadowing · 5 more on this