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首页> 外文期刊>Journal of Experimental Neuroscience >Changes in Effective Connectivity of the Superior Parietal Lobe during Inhibition and Redirection of Eye Movements: Supplementary Issue: Behavioral Neuroscience
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Changes in Effective Connectivity of the Superior Parietal Lobe during Inhibition and Redirection of Eye Movements: Supplementary Issue: Behavioral Neuroscience

机译：抑制和重定向眼球运动过程中上顶叶的有效连通性的变化：补充问题：行为神经科学

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Executive control is the ability to flexibly control behavior and is frequently studied with saccadic eye movements. Contrary to frontal oculomotor areas, the role of the superior parietal lobe (SPL) in the executive control of saccades remains unknown. To explore the role of SPL networks in saccade control, we performed a saccadic search-step task while acquiring functional magnetic resonance imaging data for 41 participants. Psychophysiological interaction analyses assessed task-related differences in the effective connectivity of SPL with other brain regions during the inhibition and redirection of saccades. Results indicate an increased coupling of SPL with frontal, posterior, and striatal oculomotor areas for redirected saccades versus visually guided saccades. Saccade inhibition versus unsuccessful inhibition revealed an increased coupling of SPL with dorsolateral prefrontal cortex and anterior cingulate cortex. We discuss how these findings relate to ongoing debates about the implementation of executive control and conclude that early attentional control and rapid updating of saccade goals are important signals for executive control.
机译：执行控制是灵活控制行为的能力，经常通过眼球运动来研究。与额叶动眼运动区域相反，上顶叶（SPL）在扫视运动的执行控制中的作用仍然未知。为了探索SPL网络在扫视控制中的作用，我们在为41名参与者获取功能性磁共振成像数据的同时执行了搜索搜索任务。心理生理相互作用分析评估了扫视运动的抑制和重定向过程中，与SPL与其他大脑区域的有效连通性相关的任务相关差异。结果表明，相对于视觉引导的扫视，SPL与额叶，后部和纹状体动眼区域的耦合增加。扫视抑制与未成功抑制显示，SPL与背外侧前额叶皮层和扣带回前皮的耦合增加。我们讨论了这些发现如何与正在进行的有关执行控制的辩论相关联，并得出结论，尽早注意控制和快速更新扫视目标是执行控制的重要信号。

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