Speech activities
Speech is a form of communication that has developed historically in the process of materially transforming human activity, mediated by language. Speech includes the processes of generating and perceiving messages for the purposes of communication or (in particular) for the purposes of regulating and controlling one's own activities (internal speech, self-centered speech). Psychology is primarily interested in the place of speech in the system of higher mental functions of a person - in its relationship with thinking, consciousness, memory, emotions, etc...