心灵漫游和元意识的神经化学相关物
Kara Parsons1, Hannah Filmer1, Shane E Ehrhardt1
1School of Psychology, The University of Queensland, Brisbane, QLD, Australia.
概括
大脑中神经化学物质的度预示着思想的流浪,根据区域和任务而异. 激发性和抑制性神经递质平衡影响认知任务期间的注意力和元意识.
科学领域:
- 神经科学是一个神经科学.
- 认知神经科学 认知神经科学
- 神经化学 神经化学
背景情况:
- 心灵流浪是一种常见的认知状态,注意力偏离当前任务.
- 之前的研究将思维游荡与默认模式网络联系起来,但尚未探索其神经化学基础.
- 了解脑游荡的神经化学基础对于认知控制研究至关重要.
研究的目的:
- 研究神经化学物质度 (谷氨酸和GABA+) 与不同类型的思维漂泊之间的关联.
- 探索这些关联在不同的大脑区域 (PFC,IPS,M1) 和认知任务.
- 确定超意识和意向如何调节心灵流浪的神经化学相关物.
主要方法:
- 在46名参与者中利用7T磁共振光谱测量神经化学度.
- 采用了三种行为范式,包括自学和探测的思维漫游任务.
- 评估心灵流浪子类型,包括超意识,无意和故意状态.
主要成果:
- 思想流浪与神经化学物质的关联因大脑区域,任务和思想流浪类型而异.
- 在双背任务中检测到的思维 (非故意的) 和在FT-RSGT中自我检测到的思维与PFC神经化学有关.
- 在M1中,有意的思维游荡与GABA+相关,而在PFC中,无意的思维游荡与E/I平衡有关.
结论:
- 神经化学度,特别是刺激/抑制平衡,可以预测心灵流浪的倾向.
- 倾向于思维漫游,元意识和意向性受到任务需求的影响.
- 这些发现为潜在的注意力控制和思维游荡的神经化学机制提供了新的见解.
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