(from Greek for reading deficiencies) is a reading disorder that occurs when different areas of the left hemisphere (in right-handed people) are affected, or the inability to practically master reading. Depending on the area of cortical damage, several forms of dyslexia can be distinguished, including visual dyslexia, which manifests itself in the inability to recognize individual letters such as dyslexia or compound words such as verbal dyslexia, caused by a deficiency in the visual perception of letters and words. It is possible to use unilateral visual dyslexia, in which case half of the text (usually the left half) is ignored. In auditory dyslexia, “guess reading” is observed. With dyslexia associated with the motor (incoming), reading becomes non-automatic, and difficulties arise in copying letters to appropriate expressions. As for dyslexia associated with motor motor (outgoing), disturbances in the successive motor organization of the act of speech are observed. When individual letters are recognized and pronounced correctly, the process of combining letters into syllables or syllables into words is deficient, the process of switching from one syllable or word to another is affected, and repetitiveness occurs in speech. Damage to the frontal or anterior schizophrenia of the cerebral cortex leads to a form of dyslexia associated with disturbances in the regulatory mechanisms, selectivity of all mental processes, including reading, which manifest as disorders of the purposeful nature of reading, attention deficit, pathological inertia, guess reading, etc.