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Titolo:
FUNCTIONAL MRI IN HUMAN SOMATOSENSORY CORTEX ACTIVATED BY TOUCHING TEXTURED SURFACES
Autore:
LIN WL; KUPPUSAMY K; HAACKE EM; BURTON H;
Indirizzi:
WASHINGTON UNIV,MED CTR,MALLINCKRODT INST RADIOL,510 S KINGSHIGHWAY ST LOUIS MO 63110
Titolo Testata:
Journal of magnetic resonance imaging
fascicolo: 4, volume: 6, anno: 1996,
pagine: 565 - 572
SICI:
1053-1807(1996)6:4<565:FMIHSC>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
HUMAN VISUAL-CORTEX; MAGNETIC-RESONANCE IMAGE; MOTOR CORTEX; BLOOD OXYGENATION; HUMAN BRAIN; CONSCIOUS MONKEY; MACAQUE MONKEYS; GRADIENT-ECHO; STIMULATION; CONTRAST;
Keywords:
FUNCTIONAL MRI; SOMATOSENSORY; BRAIN MAPPING;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
45
Recensione:
Indirizzi per estratti:
Citazione:
W.L. Lin et al., "FUNCTIONAL MRI IN HUMAN SOMATOSENSORY CORTEX ACTIVATED BY TOUCHING TEXTURED SURFACES", Journal of magnetic resonance imaging, 6(4), 1996, pp. 565-572

Abstract

MRI revealed activation foci in human somatosensory cortex during protocols involving stimulation of the fingertips with a textured surface, A 2D T2-weighted gradient echo sequence was used to acquire images. The imaging protocol included acquiring images while subjects performed specific tactile stimulation paradigms (activation scans) or rested. Three different paradigms were used to produce functional activationusing a textured surface to rub the fingertips of one hand, First, motor sensory activation was produced by rubbing the textured surface held in one hand against the fingertips of the opposite hand only duringthe activation scans. Second, the hand holding the textured surface moved throughout the experiment but touched the fingertips of the opposite hand only during the activation scans. Third, subjects remained still in the magnet throughout the entire study while an investigator rubbed the textured surface against the subjects' fingertips during the activation scans, Images were postprocessed using a cross-correlation scheme. The results revealed multiple foci of motor sensory activationnear the central sulcus, postcentral sulcus, and prefrontal cortex.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 09/04/20 alle ore 07:29:45