Using a reading comprehension task, we explored whether body postures would influence mind wandering, a universal internally self-generated activity. Specifically, participants were instructed to perform a reading comprehension task under three postural conditions (lying supine, sitting, and standing upright). Probe-caught technique with prompts presented at irregular intervals was adapted to measure the frequency of mind wandering. Self-caught method was used to measure the meta-awareness of mind wandering by self-reports. Results indicated that the radio of mind wandering was significantly greater in lying than standing and sitting, but the meta-awareness of it was not different among three postures. Moreover, the reading performance, an indirect indicator of executive control, decreased in lying compared to standing and sitting. We suggested that the increase of mind wandering in lying posture may due to the dysfunction of executive control, which also results in the redistribution of cognitive resources. Suggestions for future research are proposed.

使用阅读理解任务，我们探索了身体姿势是否会影响思维游走，这是一种普遍的内部自我产生的活动。具体来说，参与者被要求在三种姿势条件下（仰卧、坐着和直立）执行阅读理解任务。采用以不规则间隔呈现提示的探针捕获技术来测量走神的频率。采用自我捕捉法通过自我报告测量走神的元意识。结果表明，躺着比站着和坐着时走神的无线电波显着增加，但三种姿势的元意识差异不大。此外，与站立和坐着相比，躺着的阅读能力（执行控制的间接指标）有所下降。我们认为，躺姿走神的增加可能是由于执行控制功能障碍，这也导致了认知资源的重新分配。提出了对未来研究的建议。