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Titolo:
MEASUREMENT OF SOMATOSENSORY-EVOKED RESPONSE USING FUNCTIONAL MR-IMAGES AND MEG
Autore:
IRAMINA K; YUMOTO M; YOSHIKAWA K; KAMEI H; UENO S;
Indirizzi:
UNIV TOKYO,GRAD SCH SCI,DEPT BIOMED ENGN TOKYO 113 JAPAN UNIV TOKYO,DEPT LAB MED TOKYO 113 JAPAN UNIV TOKYO,INST MED SCI TOKYO 113 JAPAN
Titolo Testata:
IEEE transactions on magnetics
fascicolo: 5, volume: 33, anno: 1997,
parte:, 2
pagine: 4260 - 4262
SICI:
0018-9464(1997)33:5<4260:MOSRUF>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Soggetto:
MOTOR CORTEX; MAGNETOENCEPHALOGRAPHY; LOCALIZATION; BRAIN;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
7
Recensione:
Indirizzi per estratti:
Citazione:
K. Iramina et al., "MEASUREMENT OF SOMATOSENSORY-EVOKED RESPONSE USING FUNCTIONAL MR-IMAGES AND MEG", IEEE transactions on magnetics, 33(5), 1997, pp. 4260-4262

Abstract

This study focuses on the comparison of characteristics of functionalmagnetic resonance imaging (fMRI) and magnetoencephalography (MEG), Activations of the primary somatosensory cortex were investigated usingMEG and fMRI, A right thumb and a ring finger were stimulated by the electrical current pulse. Both MEG and fMRI identified expected anatomical regions of primary somatosensory cortex, When the thumb and the ring finger were stimulated simultaneously, it was possible in fMRI to discriminate the area of the thumb and the ring finger in the primary somatosensory cortex. In MEG, a single current dipole model might fit with a sufficiently large correlation coefficient because two sources are closely located within 10mm, It is difficult to discriminate two closely located dipoles, if no initial information is given.

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Documento generato il 02/06/20 alle ore 00:36:24