From modular to centralized organization of synchronization in functional areas of the cat cerebral cortex.

From modular to centralized organization of synchronization in functional areas of the cat cerebral cortex.
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DOI:
10.1371/journal.pone.0012313
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发表时间:
2010-08-26
期刊:
影响因子:
3.7
通讯作者:
Arenas A
Arenas A
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Gómez-Gardeñes J;Zamora-López G;Moreno Y;Arenas A

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最近的研究指出了广泛分布的神经组件之间的瞬时同步对理解意识感知的重要性。这些神经组装形成了神经元和突触的复杂网络,其哺乳动物的详细地图仍然未知,离我们的实验能力还很远。只有在少数情况下,例如C。在elegans中,我们知道神经元组织的完整映射或其由皮层区域提供的介观水平的描述。在这里,我们研究的过程中的瞬态和全球同步使用一个简单的模型相耦合振荡器分配到大脑中的猫皮层的皮质区。我们的研究结果突出了拓扑连接的同步发展的影响,揭示了一个过渡的同步组织,从一个模块化的分散的一致性,集中的同步制度控制的几个皮层区域形成一个丰富的俱乐部连接模式。
Recent studies have pointed out the importance of transient synchronization between widely distributed neural assemblies to understand conscious perception. These neural assemblies form intricate networks of neurons and synapses whose detailed map for mammals is still unknown and far from our experimental capabilities. Only in a few cases, for example the C. elegans, we know the complete mapping of the neuronal tissue or its mesoscopic level of description provided by cortical areas. Here we study the process of transient and global synchronization using a simple model of phase-coupled oscillators assigned to cortical areas in the cerebral cat cortex. Our results highlight the impact of the topological connectivity in the developing of synchronization, revealing a transition in the synchronization organization that goes from a modular decentralized coherence to a centralized synchronized regime controlled by a few cortical areas forming a Rich-Club connectivity pattern.
DOI: 10.1371/journal.pone.0001049
发表时间: 2007-10-17
期刊: PloS one
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