7min chapter

Twenty Thousand Hertz cover image

The Voice Inside

Twenty Thousand Hertz

CHAPTER

The Phenomenon of Inner Speech: Origins and Effects

This chapter explores the concept of inner speech, discussing its origins and development in humans. It touches upon the theories of Lev Vygotsky and explores evolutionary explanations for why inner speech developed. The chapter also examines the effects of inner speech, including its association with anxiety and its potential connection to voice hearing.

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