Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Event-related potentials, CNV, readiness potential, and movement accompanying potential recorded from posterior thalamus in human subjects. A SEEG study
Autore:
Rektor, I; Kanovsky, P; Bares, M; Louvel, J; Lamarche, M;
Indirizzi:
Masaryk Univ, St Anna Hosp, Dept Neurol 1, Brno 60200, Czech Republic Masaryk Univ Brno Czech Republic 60200 rol 1, Brno 60200, Czech Republic Hop St Anne, Grp Neurophysiol Clin, F-75674 Paris, France Hop St Anne Paris France F-75674 europhysiol Clin, F-75674 Paris, France
Titolo Testata:
NEUROPHYSIOLOGIE CLINIQUE-CLINICAL NEUROPHYSIOLOGY
fascicolo: 4, volume: 31, anno: 2001,
pagine: 253 - 261
SICI:
0987-7053(200108)31:4<253:EPCRPA>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
SOMATOSENSORY EVOKED-POTENTIALS; INTRACEREBRAL POTENTIALS; EPILEPTIC PATIENTS; VISUAL-STIMULI; RARE TARGET; EXPLORATION; COMPONENTS; AREA; LOBE;
Keywords:
CNV; event-related potential; evoked potential; intracranial recordings; P300; posterior thalamus; readiness potential;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
24
Recensione:
Indirizzi per estratti:
Indirizzo: Rektor, I Masaryk Univ, St Anna Hosp, Dept Neurol 1, Pekarska 53, Brno 60200, Czech Republic Masaryk Univ Pekarska 53 Brno Czech Republic 60200 ech Republic
Citazione:
I. Rektor et al., "Event-related potentials, CNV, readiness potential, and movement accompanying potential recorded from posterior thalamus in human subjects. A SEEG study", NEUROP CLIN, 31(4), 2001, pp. 253-261

Abstract

Intracranial recordings were obtained from three patients with intractablechronic pain who underwent analgesic electrical stimulation of the contralateral thalamus. Multilead electrode made it possible to record from several thalamic nuclei. The electrode was targeted into the ventroposterolateral(VPL) nucleus of the thalamus. During separate recording sessions, the following tests were performed: somatosensory evoked potentials (SEP) of the median or posterior tibial nerve, event-related cognitive potentials (auditory oddball P3 wave), readiness potential (RP) and contingent negative variation (CNV) using auditory warning (S1) and visual imperative (S2) stimuli. The movement accompanying potential (MAP), which was present In the VPL in all but one of the recordings, behaved as a far-field potential. Recordingsobtained from the VPL confirmed Its established role as a relay nucleus, processing somatosensory information to the primary somatosensory cortex. The VPL generated the 'thalamic' SEP, which was the only potential regularly recorded in this nucleus. In the recordings from one patient (No. 3), auditory and visual evoked potentials of the CNV protocol, peaking at approximately 300 ms, were obtained from the VPL and appeared to be generated in situ, Neither RP, CNV nor 'oddball' ERPs appeared in the VPL. From the pulvinar, only a visually evoked potential was recorded. Oddball P3, RP, CNV, and middle and long latency auditory and visual potentials (evoked in the CNV paradigm) appeared to be generated 'dorsally' to the VPL, probably in the nucleus posterolateralis (PL). This structure may therefore be involved in both the processing of afferent information and In cognitive operations. (C) 2001 Editions scientifiques et medicales Elsevier SAS.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/04/20 alle ore 00:22:40