Perceiving left and imagining right: dissociation in neglect.
Signor Piazza, a patient with a left parieto-occipital haemorrhage and a right thalamic stroke, showed severe right personal neglect (e.g. touching own body parts) and right perceptual neglect in tasks with (e.g. cancelling tasks) or without (e.g. description of a complex picture) motor response. He had also right-sided neglect dyslexia (including single words), without language impairments. However, the patient also presented with a clear left-sided deficit in the representational domain (e.g. imagery tasks). Signor Piazza's pattern of performance suggests dissociation between imagery and perception within the neglect syndrome.
Neurological Clinic, University of Milan, Italy.
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Beschin
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Basso
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Della Sala
D000368:Aged; D000377:Agnosia / Q000175:diagnosis*; D001921:Brain / Q000000981:diagnostic imaging / Q000473:pathology; D002545:Brain Ischemia / Q000175:diagnosis; D002543:Cerebral Hemorrhage / Q000175:diagnosis; D004410:Dyslexia / Q000175:diagnosis; D007839:Functional Laterality / Q000502:physiology; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D009778:Occipital Lobe / Q000000981:diagnostic imaging / Q000473:pathology; D010296:Parietal Lobe / Q000000981:diagnostic imaging / Q000473:pathology; D012720:Severity of Illness Index; D011795:Surveys and Questionnaires; D013788:Thalamus / Q000098:blood supply / Q000000981:diagnostic imaging / Q000473:pathology; D014057:Tomography, X-Ray Computed