Human parietofrontal networks related to action observation detected at rest

Recent data show a broad correspondence between human resting-state and task-related brain networks. We performed a functional magnetic resonance imaging (fMRI) study to compare, in the same subjects, the spatial independent component analysis (ICA) maps obtained at rest and during the observation o...

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Bibliographic Details
Published in:Cerebral cortex (New York, N.Y. 1991) N.Y. 1991), 2013-01, Vol.23 (1), p.178-186
Main Authors: Molinari, Elisa, Baraldi, Patrizia, Campanella, Martina, Duzzi, Davide, Nocetti, Luca, Pagnoni, Giuseppe, Porro, Carlo A
Format: Article
Language:English
Subjects:
Action Potentials - physiology
Brain Mapping
Female
Frontal Lobe - anatomy & histology
Frontal Lobe - physiology
Humans
Male
Motion Perception - physiology
Nerve Net - anatomy & histology
Nerve Net - physiology
Neural Pathways - physiology
Parietal Lobe - anatomy & histology
Parietal Lobe - physiology
Rest - physiology
Young Adult
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Summary:Recent data show a broad correspondence between human resting-state and task-related brain networks. We performed a functional magnetic resonance imaging (fMRI) study to compare, in the same subjects, the spatial independent component analysis (ICA) maps obtained at rest and during the observation of either reaching/grasping hand actions or matching static pictures. Two parietofrontal networks were identified by ICA from action observation task data. One network, specific to reaching/grasping observation, included portions of the anterior intraparietal cortex and of the dorsal and ventral lateral premotor cortices. A second network included more posterior portions of the parietal lobe, the dorsomedial frontal cortex, and more anterior and ventral parts, respectively, of the dorsal and ventral premotor cortices, extending toward Broca's area; this network was more generally related to the observation of hand action and static pictures. A good spatial correspondence was found between the 2 observation-related ICA maps and 2 ICA maps identified from resting-state data. The anatomical connectivity among the identified clusters was tested in the same volunteers, using persistent angular structure-MRI and deterministic tractography. These findings extend available knowledge of human parietofrontal circuits and further support the hypothesis of a persistent coherence within functionally relevant networks during rest.
ISSN:1047-3211
1460-2199
DOI:10.1093/cercor/bhr393