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科研喵使用AI读文献，祝你效率百倍，访问labcat.com.cn下载。
本期关注PNAS(影响因子9.4)发表的突破性研究"Disentangling metabolic and neurovascular timescales supporting cognitive processes"。意大利研究团队利用先进脑成像技术，首次揭示了认知过程中大脑兴奋与抑制平衡(EIB)与功能网络动态的精确时间关联。研究发现，随着认知负荷增加，大脑网络转向更专业化的连接模式，同时出现有利于兴奋的不平衡变化。这一发现不仅解释了认知适应性的神经基础，还为理解认知障碍提供了新视角。研究证实EIB动力学与脑网络动态在相同时间尺度上波动，并与个体认知表现直接相关，为探索健康与异常认知状态开辟了新途径。
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