Input-increase and input-decrease types of cortical reorganization after upper extremity amputation in humans

Elbert, Thomas; Sterr, Annette; Flor, Herta; Rockstroh, Brigitte; Knecht, Stefan; Pantev, Christo; Wienbruch, Christian; Taub, Edward

Input-increase and input-decrease types of cortical reorganization after upper extremity amputation in humans

Dateien

Elbert_et_al._97_Exp._Brain_Re.pdfGröße: 299.06 KBDownloads: 687

Datum

1997

Autor:innen

Elbert, Thomas

Sterr, Annette

Flor, Herta

Rockstroh, Brigitte

Knecht, Stefan

Pantev, Christo

Wienbruch, Christian

Taub, Edward

Open Access-Veröffentlichung

Open Access Green

Sammlungen

Psychologie

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Experimental brain research. 1997, 117, pp. 161-164. Available under: doi: 10.1007/s002210050210

Zusammenfassung

A plastic remodeling of regions in somatosensory cortex has previously been observed to occur in separate experimental paradigms in response to loss of somatosensory input and to increase in input. In this study, both types of cortical reorganization have been observed to occur concurrently in the same adult human nervous system as a result of a single intervention. Following upper extremity amputation, magnetic source imaging revealed that tactile stimulation of the lip evoked responses not only in the area of the somatosensory cortex corresponding to the face, but also within the cortical region that would normally correspond to the now absent hand. This "invasion" of the cortical amputation zone was accompanied by a significant increase in the size of the representation of the digits of the intact hand, presumably as a result of an increased importance of sensory stimulation consequent to increased dependence on that hand imposed by the loss of the contralateral extremity.

Fachgebiet (DDC)

150 Psychologie

Schlagwörter

Somatosensory, Cortex, Plasticity, Amputation, Magnetoencephalography

Zitieren

ISO 690

ELBERT, Thomas, Annette STERR, Herta FLOR, Brigitte ROCKSTROH, Stefan KNECHT, Christo PANTEV, Christian WIENBRUCH, Edward TAUB, 1997. Input-increase and input-decrease types of cortical reorganization after upper extremity amputation in humans. In: Experimental brain research. 1997, 117, pp. 161-164. Available under: doi: 10.1007/s002210050210

BibTex

@article{Elbert1997Input-10947,
  year={1997},
  doi={10.1007/s002210050210},
  title={Input-increase and input-decrease types of cortical reorganization after upper extremity amputation in humans},
  volume={117},
  journal={Experimental brain research},
  pages={161--164},
  author={Elbert, Thomas and Sterr, Annette and Flor, Herta and Rockstroh, Brigitte and Knecht, Stefan and Pantev, Christo and Wienbruch, Christian and Taub, Edward}
}

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