Natural Scenes Viewing Alters the Dynamics of Functional Connectivity in the Human Brain

被引：140

作者：

Betti, Viviana ^{[1
,2
]}

Della Penna, Stefania ^{[1
,2
]}

de Pasquale, Francesco ^{[1
,2
]}

Mantini, Dante ^{[3
,4
]}

Marzetti, Laura ^{[1
,2
]}

Romanis, Gian Luca ^{[1
,2
]}

Corbetta, Maurizio ^{[1
,2
,5
]}

机构：

[1] G dAnnunzio Univ Chieti Pescara, Dept Neurosci & Imaging, I-66013 Chieti, Italy

[2] Univ G dAnnunzio, Inst Adv Biomed Technol, I-66013 Chieti, Italy

[3] Univ Oxford, Dept Expt Psychol, Oxford OX1 3UD, England

[4] Swiss Fed Inst Technol, Dept Hlth Sci & Technol, CH-8057 Zurich, Switzerland

[5] Washington Univ, Dept Neurol Radiol & Anat & Neurobiol, St Louis, MO 63101 USA

来源：

NEURON | 2013年 / 79卷 / 04期

关键词：

RESTING-STATE ACTIVITY; DEFAULT-MODE; NEURONAL OSCILLATIONS; VISUAL-CORTEX; NETWORKS; FLUCTUATIONS; SYNCHRONIZATION; VARIABILITY; MECHANISM; MODULATION;

D O I：

10.1016/j.neuron.2013.06.022

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

Spontaneous fMRI fluctuations are organized in large-scale spatiotemporal structures, or resting-state networks (RSN). However, it is unknown how task performance affects RSN dynamics. We use MEG to measure slow (similar to 0.1 Hz) coherent fluctuations of band-limited power (BLP), a robust correlate of RSN, during rest and movie observation and compare them to fMRI-RSN. BLP correlation, especially in a band, dropped in multiple RSN during movie although overall topography was maintained. Variability of power correlation increased in visual occipital cortex, and transient decrements corresponded to scenes perceived as "event boundaries." Additionally, stronger task-dependent interactions developed between vision and language networks in theta and beta bands, and default and language networks in gamma band. The topography of fMRI connectivity and relative changes induced by the movie were well matched to MEG. We conclude that resting-state and task network interactions are clearly different in the frequency domain despite maintenance of underlying network topography.

引用

页码：782 / 797

页数：16

共 85 条

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