Internal monologue , also known as inner voice , internal speech , or verbal stream of consciousness , is thinking in words. It also refers to the semi-constant internal monologue some people have with themselves at a conscious or semi-conscious level (see Default mode network ). Much of what people consciously report "thinking about" may be thought of as an internal monologue, or a conversation with oneself. Some of this can be considered as speech rehearsal. A similar term, interior monologue , is used In literary criticism.