title: Limb Misidentification: A Clinical-Anatomical Prospective Study.
abstract: The misidentification of one's own limb (LM) after right hemisphere stroke is a striking phenomenon that is incompletely understood. The authors prospectively studied the natural history and anatomy of LM in 36 patients with hyperacute right middle cerebral artery infarct. Unlike in previous studies, rapid clinical assessment was prioritized. The authors found LM to be common and transient, involving 61% at onset, evolving to 15% at 1 week. Voxel-based lesion-symptom mapping found supramarginal gyrus (SMG) damage associated with LM. This substantiates the SMG's importance in LM and has broader implications for lesion analysis: timing matters. Rapid assessment of transient disorders minimizes false negatives, which can improve lesion analysis.
authors.affiliation: From the Montefiore Hospital/Albert Einstein College of Medicine, Bronx, N.Y. (DA, RG).
authors.forename: Daniel
authors.initials: D
authors.lastname: Antoniello
authors.affiliation: From the Montefiore Hospital/Albert Einstein College of Medicine, Bronx, N.Y. (DA, RG).
authors.forename: Reena
authors.initials: R
authors.lastname: Gottesman
mesh_terms: D000208:Acute Disease; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001921:Brain / Q000000981:diagnostic imaging* / Q000473:pathology*; D005260:Female; D006225:Hand; D006801:Humans; D020244:Infarction, Middle Cerebral Artery / Q000150:complications* / Q000000981:diagnostic imaging* / Q000453:epidemiology / Q000473:pathology; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D010291:Paresis / Q000000981:diagnostic imaging / Q000453:epidemiology / Q000209:etiology / Q000473:pathology; D010468:Perceptual Disorders / Q000000981:diagnostic imaging* / Q000453:epidemiology / Q000209:etiology* / Q000473:pathology; D015995:Prevalence; D011446:Prospective Studies; D012649:Self Concept; D014057:Tomography, X-Ray Computed; D055815:Young Adult
keywords: Asomatognosia; Neglect; Neuroanatomy; Somatoparaphrenia; Stroke and Other Cerebral Vascular Disease (Neuropsychiatric Aspects)