In order to understand how the inner voice works, you need to understand how human thought translates into action. “Whenever we do any action, our brain makes a prediction of the sensory consequences of that action,” says Loevenbruck. Say you want to fetch a glass of water. “Your brain sends the ...

Loevenbruck explains that, for the most part, we hear what she terms “inner language”. But not always. “You can have expanded and more condensed forms of inner speech,” she says. “People may experience them as abstract representations of language, without sound … some people say their inner voice...