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The relationship of perceptual phenomena and cortical reorganization in upper extremity amputees

Grüsser, S.M., Winter, C., Mühlnickel, W., Denke, C., Karl, A., Villringer, K. and Flor, H. (2001) The relationship of perceptual phenomena and cortical reorganization in upper extremity amputees Neuroscience, 102, (2), pp. 263-272. (doi:10.1016/S0306-4522(00)00491-7).

Record type: Article

Abstract

In this study 16 unilateral upper extremity amputees participated in a comprehensive psychophysiological examination that included the assessment of painful and non-painful phantom and stump sensations, thermal and electric perception as well as two-point discrimination thresholds, the detailed analysis of referred sensation and the measurement of reorganizational changes in primary somatosensory cortex using neuroelectric source imaging. Reorganization of the primary somatosensory cortex was associated with increased habitual phantom limb pain, telescoping, non-painful stump sensations and painful referred sensation induced by painful stimulation. It was unrelated to non-painful phantom sensations, non-painful referred sensation elicited by painful or non-painful stimulation, painful referred sensation elicited by non-painful stimulation, perception thresholds and stump pain.
These data substantiate the hypothesis that painful and non-painful phantom phenomena are mediated by different neural substrates.

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More information

Published date: 2001
Keywords: cortical plasticity, phantom limb pain, phantom phenomena, referred sensations, neuroelectric source imaging, traumatic amputation

Identifiers

Local EPrints ID: 40402
URI: http://eprints.soton.ac.uk/id/eprint/40402
ISSN: 0306-4522
PURE UUID: e8c6fd56-6dc4-4c66-83d4-2b8eaa1dd140

Catalogue record

Date deposited: 03 Jul 2006
Last modified: 17 Jul 2017 15:34

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Contributors

Author: S.M. Grüsser
Author: C. Winter
Author: W. Mühlnickel
Author: C. Denke
Author: A. Karl
Author: K. Villringer
Author: H. Flor

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