The article presents the results of a study of the impact of digitalization on the formation and development of one of the main subsystems of the psyche that is cognitive subsystem. The determinative influence of digitalization on its formation, significant in degree and complex in nature, has been revealed. It is shown that it is carried out at two main and mutually complementary levels: analytical and structural. The essence of the analytical level of determination is that, in general, there is a significant decrease in the degree of formation of individual components of the cognitive subsystem: basic cognitive processes and their corresponding qualities. The specificity of the structural level of determination is that similarly - also significant and essential transformations are carried out in terms of general organization - structuring and integration of these components into integrity. On the basis of this, the position is justified, according to which the previously established syndrome of cognitive decline includes not only the reduction of individual parameters of the cognitive subsystem, but also the transformation of their overall structure. At the same time, an important specific pattern of structural transformations of the cognitive subsystem under the influence of digitalization factors is that it develops mainly in terms of changing the degree (measure) of its organization and integration, and not in terms of its qualitative restructuring. On the contrary, it remains quite invariant and resistant to the determinative influence of digitalization factors.