Vol.3, Iss.3, September 2023

The structural organization of the brain matures between 16 and 22 years old when spontaneous contradictions in individual behavior appear with the greatest frequency which is caused by the duality of human consciousness based on the early maturing instinctive-hormonal centers of the limbic system and the late differentiating neocortical fields of voluntary thinking. When creating a written speech, limbic and cortical mechanisms of motivational control are used and individualize the resulting text. Personalization of writing meaningful texts is enhanced by the variability of brain structures involved in this process. We examined evolutionary morphofunctional systems to evaluate their biological value. Depending on individual priorities and motivational choices, written composition was carried out in two strategies. The first was the most general principle of saving the energy expenditure of the brain during any voluntary activity. The second was the mobilization of cortical centers with extremely high energy costs. To identify these differences, a pragmalinguistic analysis technique was developed in this study, supporting both strategies.