When the thoughts of speakers are the same, the role of speech is reduced to a minimum. Inner speech often omits subjects, since the subject is understood. When the characteristics of egocentric speech that are similar to social speech are eliminated, egocentric speech drops. Older children with obstacles examine the situation in silence and find a solution. Vygotsky theorized that egocentric speech has a genetic connection with inner speech.
Egocentric speech is the key to studying inner speech because it is the stage that precedes it.
Egocentric and inner speech both fulfill intellectual functions and have similar structures. Inner speech is for oneself, while external, social speech is for others. There are various forms of inner speech. Verbal memory, as in the recitation of a poem, is a form of inner speech. Written Language Language does not depend on sound, but is the functional use of signs.