Hallucination (lat. Hallucinatio - vision, ghost, deception of the senses) - false perceptions that arise without a real object, respectively, outside the body’s adequate response to the stimulus. Internal hallucinatory images usually relate to objects and people; internal perception may be accompanied by depersonalization of sensations. Hallucination is the result of unhealthy functioning of the organs of vision, hearing, smell, touch and other mental or physiological state. People have always encountered states of various psychophysiological disorders. A person may fall into an unconscious state, lose the ability to self-control and be responsible for their actions. A neurological phenomenon is expressed in a psychotic state of the brain against the background of a sharp excitation or slowdown of its activity. With insomnia, the brain does not rest from the intense processes of perceiving sensations of reality, and its disorder occurs. With severe nervous overstrain, a state of consciousness disorder occurs. A person, against the background of increased sensitivity, suddenly hears voices or sees shadows, this