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Titolo:
Motor area activity during mental rotation studied by time-resolved single-trial fMRI
Autore:
Richter, W; Somorjai, R; Summers, R; Jarmasz, M; Menon, RS; Gati, JS; Georgopoulos, AP; Tegeler, C; Ugurbil, K; Kim, SG;
Indirizzi:
Natl Res Council Canada, Inst Biodiagnost, Winnipeg, MB R3B 1Y6, Canada Natl Res Council Canada Winnipeg MB Canada R3B 1Y6 eg, MB R3B 1Y6, Canada Robarts Res Inst, London, ON N6A 5C1, Canada Robarts Res Inst London ON Canada N6A 5C1 nst, London, ON N6A 5C1, Canada Univ Minnesota, Sch Med, Minneapolis, MN 55455 USA Univ Minnesota Minneapolis MN USA 55455 ch Med, Minneapolis, MN 55455 USA
Titolo Testata:
JOURNAL OF COGNITIVE NEUROSCIENCE
fascicolo: 2, volume: 12, anno: 2000,
pagine: 310 - 320
SICI:
0898-929X(200003)12:2<310:MAADMR>2.0.ZU;2-O
Fonte:
ISI
Lingua:
ENG
Soggetto:
FUNCTIONAL MRI; CORTICAL ACTIVATION; PERFORMANCE; MOVEMENT; OBJECTS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
35
Recensione:
Indirizzi per estratti:
Indirizzo: Richter, W Natl Res Council Canada, Inst Biodiagnost, 435 Ellice Ave, Winnipeg, MB R3B 1Y6, Canada Natl Res Council Canada 435 Ellice Ave Winnipeg MBCanada R3B 1Y6
Citazione:
W. Richter et al., "Motor area activity during mental rotation studied by time-resolved single-trial fMRI", J COGN NEUR, 12(2), 2000, pp. 310-320

Abstract

The functional equivalence of overt movements and dynamic imagery is of fundamental importance in neuroscience. Here, we investigated the participation of the neocortical motor areas in a classic task of dynamic imagery, Shepard and Metzler's mental rotation task, by time-resolved single-trial functional Magnetic Resonance Imaging (fMRI). The subjects performed the mental-rotation task 16 times, each time with different object pairs. Functional images were acquired for each pair separately, and the onset times and widths of the activation peaks in each area of interest were compared to the response times. We found a bilateral involvement of the superior parietal lobule, lateral premotor area, and supplementary motor area in all subjects; we found, furthermore, that those areas likely participate in the very act of mental rotation. We also found an activation in the left primary motor cortex, which seemed to be associated with the right-hand button press at theend of the task period.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/01/21 alle ore 11:46:13