Which communication type operates predominantly through exchange of messages with oneself?

Intrapersonal communication refers to the process of communicating within oneself. This can include internal dialogues, reflections, thoughts, and self-talk. It is the way individuals process information, develop ideas, and manage their emotions. This type of communication is primarily personal and does not involve outside interactions or exchanges with others, thereby emphasizing the solitary aspect of communication that happens internally.

In contrast, interpersonal communication involves exchanges between two or more people, such as conversations or discussions. Group communication relates to interactions that occur within a group context, where multiple individuals share information and ideas. Horizontal communication typically refers to communication among peers or colleagues at the same level within an organization. Each of these other types focuses on external exchanges rather than the introspective, self-directed nature of intrapersonal communication.