A Neural Model of Mind Wandering
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- 作者：Matthias Mittner
- 关键词：mind wandering ; default-mode network ; locus coeruleus ; norepinephrine ; adaptive-gain theory ; gain modulation.
- 刊名：Trends in Cognitive Sciences
- 出版年：2016
- 出版时间：August 2016
- 年：2016
- 卷：20
- 期：8
- 页码：570-578
- 全文大小：1598 K
文摘
The role of the default-mode network (DMN) in the emergence of mind wandering and task-unrelated thought has been studied extensively. In parallel work, mind wandering has been associated with neuromodulation via the locus coeruleus (LC) norepinephrine (LC-NE) system. Here we propose a neural model that links the two systems in an integrative framework. The model attempts to explain how dynamic changes in brain systems give rise to the subjective experience of mind wandering. The model implies a neural and conceptual distinction between an off-focus state and an active mind-wandering state and provides a potential neural grounding for well-known cognitive theories of mind wandering. Finally, the proposed neural model of mind wandering generates precise, testable predictions at neural and behavioral levels.