Abstract
The longest age stage in human development is adulthood, which is characterised by the accumulation of communicative experience and numerous opportunities for effective interaction with others. This article examined the psychophysiological features of communicative competence development in adulthood and identified guidelines for promoting long-term communicative functionality in adults, considering their psycholinguistic features. Among the methods used in the study, key approaches include theoretical, empirical, and statistical analysis. The study explored the essential characteristics and age-related features of communicative competence development in adults, as well as anatomical and functional changes in adulthood. It was demonstrated that older people do not lack communicative knowledge or skills, compared with younger individuals. Furthermore, heterochrony and uneven ageing among individuals and groups were also confirmed. Experimental findings indicated that most middle-aged individuals exhibit a high level of communicative competence, which can be attributed to their accumulated experience in communication. This is further supported by competence, knowledge and skills, as well as their willingness to share information with others. A comparative analysis of early and middle adulthood groups revealed that communicative competence indicators are slightly higher in early adulthood than in middle adulthood. Taking into account the findings on communicative competence development in adulthood, methodological recommendations have been developed for individuals at different stages of this life period