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Impaired spatial-temporal integration of touch in xenomelia (body integrity identity disorder)


Aoyama, A; Krummenacher, P; Palla, A; Hilti, L M; Brugger, P (2012). Impaired spatial-temporal integration of touch in xenomelia (body integrity identity disorder). Spatial Cognition & Computation, 12(2-3):96-110.

Abstract

Body integrity identity disorder (BIID), or xenomelia, is a failure to integrate a fully functional limb into a coherent body schema. It manifests as the desire for amputation of the particular limb below an individually stable ‘demarcation line.’ Here we show, in five individuals with xenomelia, defective temporal order judgments to two tactile stimuli, one proximal, the other distal of the demarcation line. Spatio-temporal integration, known to be mediated by the parietal lobes, was biased towards the undesired body part, apparently capturing the individual's attention in a pathologically exaggerated way. This finding supports the view of xenomelia as a parietal lobe syndrome.

Abstract

Body integrity identity disorder (BIID), or xenomelia, is a failure to integrate a fully functional limb into a coherent body schema. It manifests as the desire for amputation of the particular limb below an individually stable ‘demarcation line.’ Here we show, in five individuals with xenomelia, defective temporal order judgments to two tactile stimuli, one proximal, the other distal of the demarcation line. Spatio-temporal integration, known to be mediated by the parietal lobes, was biased towards the undesired body part, apparently capturing the individual's attention in a pathologically exaggerated way. This finding supports the view of xenomelia as a parietal lobe syndrome.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > University Hospital Zurich > Clinic for Neurology
Dewey Decimal Classification:610 Medicine & health
Language:English
Date:2012
Deposited On:29 Nov 2012 12:22
Last Modified:05 Apr 2016 16:07
Publisher:Taylor & Francis
Series Name:Spatial Cognition & Computation
ISSN:1387-5868
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.1080/13875868.2011.603773

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