Relative timing of neuronal activity in distinct temporal lobe areas during a recognition memory task for words
Relative timing of neuronal activity in distinct temporal lobe areas during a recognition memory task for words
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DOI：
10.1076/jcen.20.6.782.1116
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发表时间：
1998-12-01
影响因子：
2.2
通讯作者：
Papanicolaou, AC
中科院分区：
文献类型：
--
作者：
Breier, JI;Simos, PG;Papanicolaou, AC
九名神经系统正常的志愿者参与视觉呈现单词的识别记忆任务，同时用全头神经磁力计测量垂直于头皮表面的磁通量。确定了任务期间不同大脑区域发生的活动的相对色彩。枕叶区域首先变得活跃，然后是基底颞叶区域。接下来，在记录时代的后期部分，颞顶和内侧颞区变得活跃，并且似乎一致激活。除枕叶外，活动主要集中在左半球。这种模式在参与者中是一致的。结果表明，MEG 在捕获大脑活动的时间和空间方面，作为其他功能成像方式的辅助手段具有广阔的前景。
Nine neurologically normal volunteers engaged in a recognition memory task for visually presented words while the magnetic flux normal to the scalp surface was measured with a whole-head neuromagnetometer. The relative tinting of activity occurring during the task in different brain areas was determined. Occipital lobe areas became active first, followed by basal temporal areas. Temporoparietal and medial temporal areas became active next, during later portions of the recorded epoch, and appeared to activate in concert. Except for the occipital lobe, activity was predominantly in the left hemisphere. This pattern was consistent across participants. Results suggest that MEG, in capturing temporal as well as spatial aspects of brain activity, has a promising role as an adjunct to other functional imaging modalities.