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Titolo:
Multiple equivalent current dipole source localization of visual event-related potentials during oddball paradigm with motor response
Autore:
Yamazaki, T; Kamijo, K; Kenmochi, A; Fukuzumi, S; Kiyuna, T; Takaki, Y; Kuroiwa, Y;
Indirizzi:
NEC Corp Ltd, Fundamental Res Labs, Tsukuba, Ibaraki 3058501, Japan NEC Corp Ltd Tsukuba Ibaraki Japan 3058501 sukuba, Ibaraki 3058501, Japan NEC Corp Ltd, Personal C&C Dev Labs, Personal C&C Operat Unit 1, Tsukuba, Ibaraki, Japan NEC Corp Ltd Tsukuba Ibaraki Japan perat Unit 1, Tsukuba, Ibaraki, Japan NEC Corp Ltd, Human Media Res Labs, Tsukuba, Ibaraki, Japan NEC Corp Ltd Tsukuba Ibaraki Japan dia Res Labs, Tsukuba, Ibaraki, Japan Yokohama City Univ, Sch Med, Dept Neurol, Yokohama, Kanagawa 232, Japan Yokohama City Univ Yokohama Kanagawa Japan 232 ohama, Kanagawa 232, Japan
Titolo Testata:
BRAIN TOPOGRAPHY
fascicolo: 3, volume: 12, anno: 2000,
pagine: 159 - 175
SICI:
0896-0267(200021)12:3<159:MECDSL>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Soggetto:
POSITRON EMISSION TOMOGRAPHY; MEDIAL TEMPORAL-LOBE; HUMAN HIPPOCAMPAL-FORMATION; POSITIVE EVOKED-POTENTIALS; DEPTH-RECORDED POTENTIALS; SPATIAL WORKING-MEMORY; ENDOGENOUS POTENTIALS; INTRACEREBRAL POTENTIALS; DISCRIMINATION TASKS; PREFRONTAL CORTEX;
Keywords:
multiple equivalent current dipole source localization; event-related potential; visual oddball paradigm; working memory; attention; confidence limit;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
92
Recensione:
Indirizzi per estratti:
Indirizzo: Yamazaki, T NEC Corp Ltd, Fundamental Res Labs, 34 Miyukigaoka, Tsukuba, Ibaraki 3058501, Japan NEC Corp Ltd 34 Miyukigaoka Tsukuba Ibaraki Japan 3058501 apan
Citazione:
T. Yamazaki et al., "Multiple equivalent current dipole source localization of visual event-related potentials during oddball paradigm with motor response", BRAIN TOPOG, 12(3), 2000, pp. 159-175

Abstract

Event-related potentials (ERPs) during a visual oddball paradigm with button-pressing responses were recorded in 12 right-handed subjects from 32 scalp electrodes. The single equivalent current dipole (ECD) of the target C1 (weak occipito-parietal negativity from 30-80ms) was consistently located at the primary visual cortex. From the 4-ECD localization of the target P1/N1 (temporally coincident frontal positivity and occipito-temporal negativity), it was suggested that this complex reflected activities from distributed sources along both dorsal occipito-parietal and ventral occipito-temporalareas. The stable multiple ECD solutions for the target P3b were chosen asthose including the left primary motor and/or sensorimotor dipole and satisfying goodness-of-fit (GOF) of more than 98% and confidence limit (CL) of less than 1mm. The obtained frontal dipoles were discussed in terms of visual working memory and sustained attention in reference to the previous PET,fMRI and MEG studies. The distributed multiple ECDs may suggest that P3 should be interpreted as being the embodiment of the cortico-limbic-thalamic network which involves Halgren and Marinkovic's emotional and behavioral model and Mesulam's attentional circuit.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/04/20 alle ore 09:42:18