The technique by which an author presents a character's random, unfiltered thoughts as they occur in the character's mind, without logical sequence or editorial organisation, is known as

Stream of consciousness is a narrative technique that attempts to replicate the continuous, associative, and often illogical flow of a character's thoughts, feelings, and perceptions as they occur, without the organising intervention of the author. Free indirect discourse blends the narrator's voice with a character's thoughts while maintaining grammatical structure. A dramatic monologue is a poem or speech addressed to a listener, and interior soliloquy, while related, is more structured than stream of consciousness.