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Titolo:
Recording of cognitive evoked potentials during and after transient globalamnesia: report of three cases.
Autore:
Gil, R; Neau, JP; Bailbe, M;
Indirizzi:
CHU La Miletrie, Serv Neurol, F-86021 Poitiers, France CHU La Miletrie Poitiers France F-86021 Neurol, F-86021 Poitiers, France
Titolo Testata:
NEUROPHYSIOLOGIE CLINIQUE-CLINICAL NEUROPHYSIOLOGY
fascicolo: 2, volume: 31, anno: 2001,
pagine: 114 - 120
SICI:
0987-7053(200104)31:2<114:ROCEPD>2.0.ZU;2-C
Fonte:
ISI
Lingua:
FRE
Soggetto:
HUMAN HIPPOCAMPAL-FORMATION; EVENT-RELATED POTENTIALS; MEMORY; P300; HYPOPERFUSION; COMPONENT; SPECT; TASK;
Keywords:
event-related potentials; memory; P300; transient global amnesia;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
20
Recensione:
Indirizzi per estratti:
Indirizzo: Gil, R CHU La Miletrie, Serv Neurol, F-86021 Poitiers, France CHU La Miletrie Poitiers France F-86021 F-86021 Poitiers, France
Citazione:
R. Gil et al., "Recording of cognitive evoked potentials during and after transient globalamnesia: report of three cases.", NEUROP CLIN, 31(2), 2001, pp. 114-120

Abstract

It is of interest to record event-related potentials in the course of transient global amnesia (TGA) because the hippocampus and diencephalon, generally considered to be the sites of the dysfunction responsible for the amnesic episodes are also considered as two possible generators of the P300 wave, However, the only four cases reported so far in the literature showed an intact auditive P300 in three cases and an intact auditive P300 with reduction of visual P300 in one case. Here are reported four new cases. The P300 wave was readily indentifiable in all four cases, without any amplitude reduction, thus suggesting that the condition did not entail inactivation or functional depression of P300 generators. Concerning P300 latency, in one case it was delayed but became normal after the ictus. In the second case, the latency, although within normal limits, shortened after the ictus. In thethird and the fourth cases, the latency, initially within normal limits, remained unchanged. These apparently disparate results should be analysed inthe light of the results of isotope measurement of cerebral blood flaw during the amnesia, which are also inconsistent but most frequently indicate bilateral temporal or thalamic flow reduction. It remains to be determined in the future whether the stability or change in the P300 will make it possible to predict the brain region involved in transient global amnesia, whichcould perhaps Vary from one patient to another. (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 17/09/19 alle ore 22:40:34