Agnosia Apperceptive Lissauer

APPERCEPTIVE LISSAUER Agnosia (ALA) - selective unrelatedness; a disturbance of perception, consisting in the fact that the patient does not recognize objects based on the signs presented. The phenomenon of ala is characteristic of all patients with Balint syndrome; the syndrome is characterized by manifestations of delusions, hallucinations, and lack of a critical attitude towards oneself and others. Observed in schizophrenia, intoxication psychoses, organic brain lesions; may occur in the long-term period of a traumatic brain injury or infection. It was first described in 1891 by H. Lissauer, who subsequently studied 26 patients with this pathology. With ala, the primary intention during perception is disrupted. When trying to complete the pencil outline of an object figure, patients neglect the differences between homogeneous parts and do not complete the drawing. Patients learn to put on makeup for theater and cinema, distinguish paintings from photographs, use maps correctly, etc. But they experience difficulty in determining the shape of an object based on a characteristic feature. The speech of patients often becomes incomprehensible, the grammatical structure of phrases is disrupted, speech becomes contradictory - phrases appear that are distorted stylistically and grammatically. Amnestic agrania Non-situational selective memory amnesia, e.g. verbal-logical, preserving knowledge of logical relations and abstract concepts.