Birn Rasmus M
Laboratory of Brain and Cognition, National Institute of Mental Health, NIH, Bethesda, MD 20892, USA.
Neuron. 2007 Oct 4;56(1):8-9. doi: 10.1016/j.neuron.2007.09.021.
Low-frequency fluctuations in fMRI data are believed to reflect synchronous and spontaneous fluctuations in neuronal networks. A study by Fox et al. in this issue of Neuron shows that these spontaneous fluctuations in the motor cortex can account for significant trial-to-trial variations in both the fMRI response and behavior.
功能磁共振成像（fMRI）数据中的低频波动被认为反映了神经网络中的同步和自发波动。福克斯等人在本期《神经元》杂志上发表的一项研究表明，运动皮层中的这些自发波动可以解释功能磁共振成像反应和行为中显著的逐次试验变化。
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