首页> 外文期刊>The Journal of Neuroscience: The Official Journal of the Society for Neuroscience >Dorsal and ventral parietal contributions to spatial orienting in the human brain.
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Dorsal and ventral parietal contributions to spatial orienting in the human brain.

机译:背和腹顶叶对人脑空间定向的贡献。

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摘要

Influential functional magnetic resonance imaging (fMRI)-based models have involved a dorsal frontoparietal network in the orienting of both endogenous and exogenous attention, and a ventral system in attentional reorienting to task-relevant events. Nonetheless, given the low temporal resolution and susceptibility to epiphenomenal activations of fMRI, such depictions remain highly debated. We hereby benefited from the high temporal resolution and causal power of event-related transcranial magnetic stimulation to explore the implications of key dorsal and ventral parietal regions in those two types of attention. We provide for the first time causal evidence of right intraparietal sulcus involvement in both types of attentional orienting, while we link the temporoparietal junction with the orienting of exogenous but not endogenous spatial attention.
机译:基于影响功能磁共振成像(fMRI)的模型在内源性和外源性注意力的定向中都涉及背侧额叶前神经网络,而在注意力转向与任务相关的事件时,腹侧系统涉及了腹侧系统。尽管如此,鉴于功能磁共振成像的时间分辨率较低且易受表皮激活的影响,此类描述仍受到高度争议。我们在此受益于事件相关的经颅磁刺激的高时间分辨率和因果关系,以探讨这两种注意方式中关键的背侧和腹侧顶区的影响。我们首次提供右顶壁沟在两种类型的注意定向中的因果关系证据,而我们将颞顶交界与外源性而非内源性空间注意的定向联系起来。

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