The Role of the Prefrontal Cortex in the Maintenance of Verbal Working Memory:An Event-related fMRI Study / 实用放射学杂志
Journal of Practical Radiology
;
(12)2000.
Artículo
en Chino
| WPRIM
| ID: wpr-545747
ABSTRACT
Objective To study the role of prefrontal cortex in maintenance of working memory(WM)using event-related functional MRI(ER-fMRI).Methods Twenty healthy subjects completed a relative lower,high load version of the sternberg item recognition task during ER-fMRI.The brain areas showing activity on average across the two loads for maintenance phase were obtained with group analysis.Load dependent activity was identified with inter-group analysis.Results The maintenance phase were relevant to the activity in dorsolateral prefrontal cortex(DLPFC),ventrolateral prefrontal cortex(VLPFC),parietal lobe,supplementary motor area(SMA)and premotor cortex(PMA).Brain regions including VLPFC showed increased activation for high load level.Conclusion Functional difference but not anatomic difference between maintenance and manipulation in brain may be exist.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Idioma:
Chino
Revista:
Journal of Practical Radiology
Año:
2000
Tipo del documento:
Artículo
Similares
MEDLINE
...
LILACS
LIS