学術雑誌論文

学術雑誌論文

Scientific Reports. 2014, 4, p. 5954

Coactivation of the default mode network regions and working memory network regions during task preparation

Nature Publishing GroupHoundmillsBasingstoke, HampshireRG21 6XS

英語

2014-08-05

https://doi.org/10.1038/srep05954

Koshino H., Minamoto T., Yaoi K., et al. Coactivation of the default mode network regions and working memory network regions during task preparation. Scientific Reports 4, 5954 (2014); https://doi.org/10.1038/srep05954.

The Default Mode Network (DMN) regions exhibit deactivation during a wide variety of resource demanding tasks. However, recent brain imaging studies reported that they also show activation during various cognitive activities. In addition, studies have found a negative correlation between the DMN and the working memory network (WMN). Here, we investigated activity in the DMN and WMN regions during preparation and execution phases of a verbal working memory task. Results showed that the core DMN regions, including the medial prefrontal cortex and posterior cingulate cortex, and WMN regions were activated during preparation. During execution, however, the WMN regions were activated but the DMN regions were deactivated. The results suggest that activation of these network regions is affected by allocation of attentional resources to the task relevant regions due to task demands. This study extends our previous results by showing that the core DMN regions exhibit activation during task preparation and deactivation during task execution.

This article is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

97857

Coactivation of the default mode network regions and working memory network regions during task preparation

Nature Publishing GroupHoundmillsBasingstoke, HampshireRG21 6XS

英語

2014-08-05

Scientific Reports

4

5954

https://doi.org/10.1038/srep05954

https://hdl.handle.net/11094/97857