Językowa zewnętrzna i wewnętrzna kontrola działania
External and internal language control of activity

Summary/Abstract: The paper discusses the relationship between language, cognition and behavior. It shows language as an external activator (the control function of speech) and an internal organizer of thoughts (private speech, inner speech). A. Luria’s research on the control function of speech has been continued in the study of the understanding of directives; L.S. Vygotsky’s concept of forms of speech has resulted in the imaginative research on private speech conducted since the 1980s, revealing the specifi city of private speech and the important part it plays in development, while studies of inner speech have helped to explain the role of language in thinking. Research on the executive functions allows us to track links between higher cognitive processes and language. It turns out that language and communication skills and vocabulary not only correlate with the developmental level of the executive functions, but are a good predictor of their development

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