Imaging the temporal dynamics of brain states with highly sampled fMRI.

Imaging the temporal dynamics of brain states with highly sampled fMRI.
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用高采样fMRI成像大脑状态的时间动态。

DOI:
10.1016/j.cobeha.2021.02.005
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发表时间:
2021-08
影响因子:
5
通讯作者:
Lewis LD
Lewis LD
中科院分区:
心理学2区
文献类型:
--
作者:
Yang Z;Lewis LD

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大脑的自发动态时时刻刻调节其功能,塑造神经计算和认知。功能性磁共振成像 (fMRI) 虽然传统上用作空间定位工具,但现在越来越多地用于识别大脑活动的时间动态。专注于时域的功能磁共振成像分析揭示了有关唤醒、注意力和睡眠等潜在状态动态的重要新信息。密集时间采样——无论是通过使用快速功能磁共振成像采集,还是在个体内进行多次重复扫描——可以进一步丰富这些研究中存在的信息。本综述重点关注使用功能磁共振成像(fMRI)识别大脑状态动态(特别是警觉状态和睡眠状态)的最新进展,以及高度时间采样的功能磁共振成像(fMRI)回答这些问题的潜力。
The spontaneous dynamics of the brain modulate its function from moment to moment, shaping neural computation and cognition. Functional MRI (fMRI), while classically used as a tool for spatial localization, is increasingly being used to identify the temporal dynamics of brain activity. fMRI analyses focused on the temporal domain have revealed important new information about the dynamics underlying states such as arousal, attention, and sleep. Dense temporal sampling – either by using fast fMRI acquisition, or multiple repeated scan sessions within individuals – can further enrich the information present in these studies. This review focuses on recent developments in using fMRI to identify dynamics across brain states, particularly vigilance and sleep states, and the potential for highly temporally sampled fMRI to answer these questions.
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