Transcription of Agnosia A - ACNR
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18 IACNR VOLUME 4 NUMBER 5 NOVEMBER/DECEMBER 2004 AgnosiaAgnosia is a perceptual disorder in which sensationis preserved but the ability to recognise a stimulusor know its meaning is lost. Agnosia means with-out knowledge . Patients with Agnosia cannot under-stand or recognise what they see, hear or feel. Agnosiaresults from lesions that disconnect and isolate visual,auditory and somatosensory input from higher level pro-cessing. Perceptual skills have a hierarchical and nature and severity of perceptualimpairment depends upon modality affected and thelevel at which sensory processing has been is rare in its pure form.
18 I ACNR • VOLUME 4 NUMBER 5 • NOVEMBER/DECEMBER 2004 Agnosia A gnosia is a perceptual disorder in which sensation is preserved but the ability to recognise a …
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