Summary:
A case-report of a 70-year-old woman with denial of visual perception – inverse Anton’s syndrome is
given. Although the patient was referred for neurological examination because of her ictally started
blindness, at least unconscious processing of visual information was found. At the same time the patient
was neither disoriented nor hysterical. CT scans revealed two well-defined haemorrhagic lesions in
both occipital lobes, this combination probably plays a crucial role in the reported syndrome. Clinical
observation as well as CT findings were compared with the published data. Hypothetical relations of
inverse Anton’s syndrome to the disorders of visual perception, visual agnosia, disturbances of directed
attention and Bálint syndrome are discussed. Its connection to the neuropsychological syndromes in
which visual perception and consciousness are dissociated as a result of brain damage, including
blindsight, implicit shape perception or covert recognition of faces in prosopagnosia, is suggested.
Key words:
denial of visual perception, consciousness, implicit perception, visual agnosia, blindsight
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