The textbook is the first systematic presentation of the fundamentals of neuro-psychological diagnostics and correction of deviant development (DD). It contains stimulus material for neuropsychological research of speech and non-speech mental functions; description of the algorithm (scheme) of neuropsychological examination and the main neuropsychological syndromes of OR in right-handers and left-handers; description of methods for complex neuropsychological correction of OR, developed in accordance with the principle of “replacement ontogenesis”. The proposed systematic approach is effective not only in the form of psychological support for OR, but also in working with children attending mass children's institutions, as well as with adults, as it is based on the classical (according to A.R. Luria) method of neuropsychological analysis. For students of higher education establishments. May be useful for psychologists, speech therapists, speech pathologists, doctors.