Neurological diseases >>>> Agnosia - what is it?
Agnosia - what is it?
Agnosia is a pathological condition associated with disturbances in the information acquisition system (visual, auditory, tactile). Agnosia does not arise on its own, but develops against the background of other diseases: circulatory disorders in the brain, brain injuries, toxic brain lesions, abnormalities in the structure of the brain, brain tumors, inflammation in brain tissues.
The reasons for the development of agnosia lie in the defeat of the cortex and subcortical structures of the brain (occipital and parietal zones), which are responsible for analyzing the collected information. In fact, with agnosia, all the senses work, visual, auditory and skin receptors transmit information, but the corresponding analyzers do not process it properly.
Depending on the violation of certain structures of the brain, agnosias also differ: visual, auditory, topographic, somatoagnosias, etc.
Signs of agnosia are manifested in the inability to:
- Distinguish (recognize) objects by their external characteristics (shape, color, size, texture, belonging to any group of objects);
- Orientate in space: determine the depth, distance to objects or objects, direction, right and left sides;
- To navigate in time and movement of objects: the passage of time or movement of an object in space is not noticed;
- Recognize speech, shades of speech, identify sounds (rustling, knocking, ringing, murmuring, etc.);
- Recognize parts of your own body and navigate in their relative position (there may be a feeling that body parts are separated from each other or perceived as alien, a raised or lowered limb, tilt, various postures are not recognized);
- Recognize objects by touch.
Successful treatment of agnosia depends on the success of treatment of the disease that caused it. The main goal of treatment is to adapt a person suffering from one form or another of agnosia to the surrounding reality.
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