Background. The influence of mild traumatic brain injury (MTBI) on mental functions is not given a proper account in modern neurology and neuropsychology. The data published provide information on the state of higher mental functions (HMF) and on disturbances of the psychological well-being of children and adolescents after MTBI. The analysis of research materials in this area provides data on disorders associated with both local and cerebral symptoms, which form a diverse picture of cognitive and behavioural disorders.

The Objective is to study HMF in adolescents of 10-14 years old after TBI of mild severity as part of the methodology of neuropsychological syndrome analysis (Luria, 1973). Design. The study is based on the original set of techniques designed by A.R. Luria. We focused on assessing the status of various HMF components (motor areas, gnostic areas of memory and intelligence). We also studied the mental activity in its regulatory and dynamic aspects. The population included 31 patients with MTBI and 20 healthy subjects.

Results. The analysis of the results showed that violations of HMF in the acute period were represented by three types of syndromes. The leading place in each syndrome is occupied by deficiency symptoms of non-specific brain structures.

Conclusion. The information obtained enriches the knowledge of neuropsychology about the patterns of development of brain systems and related mental functions in adolescence, and also allows one to choose more suitable options for rehabilitation effects aimed at improving the adaptation of patients, enhancing their quality of life, and preventing negative consequences of MTBI.