Where arousal meets attention: a simultaneous fMRI and EEG recording study
Where arousal meets attention: a simultaneous fMRI and EEG recording study
复制标题
DOI：
10.1016/j.neuroimage.2004.01.048
复制
发表时间：
2004-06-01
期刊：
影响因子：
5.7
通讯作者：
Gounot, D
中科院分区：
文献类型：
--
作者：
Foucher, JR;Otzenberger, H;Gounot, D
在这项功能性磁共振成像研究中，我们在三种条件下寻找支持皮层唤醒和注意力之间相互作用的区域：检测，观察和休息。唤醒测量是从连续记录的EEG低频（LF）功率（5-9.5 Hz）与功能磁共振成像。无论在何种情况下，唤醒都与右侧背外侧前额叶和上级顶叶皮层的功能磁共振成像信号呈正相关，这两个区域与维持注意力的区域密切重叠。虽然下颞区在检测过程中也表现出与唤醒的相关性，但路径分析表明，这种影响可能是间接的，通过前面提到的网络的自上而下的影响。然而，这些视觉处理区域可以解释唤醒和表现之间的相关性。最后，内侧额叶皮层、额盖和丘脑与觉醒呈负相关，但仅在检测和观察期间，因此它们可以解释对觉醒的控制。(C)2004年爱思唯尔公司All rights reserved.
In this fMRI study, we looked for the regions supporting interaction between cortical arousal and attention during three conditions: detection, observation, and rest. Arousal measurements were obtained from the EEG low-frequency (LF) power (5-9.5 Hz) recorded continuously together with FMRI. Whatever the condition, arousal was positively correlated with the fMRI signal of the right dorsal-lateral prefrontal and superior parietal cortices, closely overlapping regions involved in the maintenance of attention. Although the inferior temporal areas also presented a correlation with arousal during detection, path analysis suggests that this influence may he indirect, through the top-down influence of the previously mentioned network. However, those visual-processing areas could account for the correlation between arousal and performances. Lastly, the medial frontal cortex, frontal opercula, and thalamus were inversely correlated with arousal but only during detection and observation so that they could account for the control of arousal. (C) 2004 Elsevier Inc. All rights reserved.