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Titolo:
PHANTOM SENSATIONS FOLLOWING ACUTE PAIN
Autore:
KNECHT S; SOROS P; GURTLER S; IMAI T; RINGELSTEIN EB; HENNINGSEN H;
Indirizzi:
UNIV MUNSTER,DEPT NEUROL,ALBERT SCHWEITZER STR 33 D-48129 MUNSTER GERMANY
Titolo Testata:
Pain
fascicolo: 2, volume: 77, anno: 1998,
pagine: 209 - 213
SICI:
0304-3959(1998)77:2<209:PSFAP>2.0.ZU;2-F
Fonte:
ISI
Lingua:
ENG
Soggetto:
PRIMARY SOMATOSENSORY CORTEX; CORTICAL REORGANIZATION; TOPOGRAPHIC REORGANIZATION; EXTENSIVE REORGANIZATION; OWL MONKEYS; LIMB PAIN; DEAFFERENTATION; STIMULI; 3B;
Keywords:
PLASTICITY; REORGANIZATION; PAIN; SOMATOSENSORY; MISLOCALIZATION; REFERRED SENSATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
23
Recensione:
Indirizzi per estratti:
Citazione:
S. Knecht et al., "PHANTOM SENSATIONS FOLLOWING ACUTE PAIN", Pain, 77(2), 1998, pp. 209-213

Abstract

In human amputees with painful phantom sensations, mislocalizations of tactile stimuli to the phantom increase with the amount of cortical representational reorganization and the extent of phantom pain. A similar phenomenon was incidentally encountered in healthy subjects. For reasons unrelated to the question of mislocalization, we performed a study involving the application of experimental acute pain to the hand followed by non-noxious tactile stimulation of the ipsilateral lip. During lip stimulation, two out of six subjects spontaneously reported perceiving an additional phantom-like sensation in the hand synchronously to the non-noxious lip stimulation. Similar, although more diffuse, phantom sensations were observed in two out of seven additional subjects who were then tested specifically for this effect. The observation is compatible with a pain-induced hyperresponsiveness of the cortical hand area to somatotopically adjacent inputs from the lip. This suggests that, even in the absence of deafferentation, pain can lead to a representational reorganization. (C) 1998 international Association for the Study of Pain. Published by Elsevier Science B.V.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 18/01/21 alle ore 16:25:46