It’s like listening to an audiobook or hearing someone read a fairytale’s beginning.

This internal speech is calledsubvocalization.

Why humans have developed this habit and what it means for cognition are fascinating topics of scientific study.

What Is Subvocalization, That Reading Voice in Our Heads?

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Subvocalization turns out to reveal a lot about speech, thoughts, and reading.

Dr. Russell Moul wrote about this phonological loop, as postulated by Alan Baddeley, forIFL Science.

Therefore, understanding what is read becomes like understanding speech.

What Is Subvocalization, That Reading Voice in Our Heads?

Photo: T.TOMSICKOVA/Depositphotos

It is thought that subvocalization develops from our earliest experiences with reading.

Young children learn to read by sounding out words and sentences, by reading aloud.

Eventually as we get better at reading skills, the vocalization becomes internal.

What Is Subvocalization, That Reading Voice in Our Heads?

Photo: PERIG76/Depositphotos

Nerve signals to the brain are also similar to speech.

By reading frequently, the subvocalization may become less distracting and reading speed can increase.

Subvocalization is the internal voice that reads aloud inside our heads while we process text.

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