Some symptoms that occur may be:[citation needed] Studies have narrowed the area of the brain that, when damaged, causes visuospatial dysgnosia to the border of the occipito-temporoparietal region.
[1] Predominantly, lesions (damage, often from stroke) are found in the angular gyrus of the right hemisphere (in people with left-hemisphere language), and are usually unilateral, meaning in one hemisphere of the brain.
[citation needed] Bilateral lesions produce more complex dysgnosic signs such as object anomia (inability to name an object), prosopagnosia (inability to recognize faces), alexia (inability to read), dressing apraxia, and memory impairment in conjunction with visuospatial dysgnosia symptoms.
[1] Visuospatial dysgnosia has many symptoms in common with Bálint's syndrome and can present simultaneously.
This comes from the general occupational therapy practice of teaching clients with intellectual dysfunctions to use the most effective combinations of perceptual input modalities, which may enable them to complete a task.