整个大脑的关闭,可以防止未引起的脑报告
Paradeisios Alexandros Boulakis1,2, Sepehr Mortaheb1,2, Laurens van Calster2,3,4,5
1Physiology of Cognition Lab, GIGA-Cyclotron Research Center In Vivo Imaging, University of Liège, Liège 4000, Belgium.
概括
头脑空白 (MB),即无法回忆最近的想法,当自发时,涉及到广泛的大脑失活,而不是额头激活. 这与诱导的MB形成鲜明对比,为意识提供了新的见解.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 心理学 心理学 心理学
背景情况:
- 头脑空白 (MB) 是无法报告即时的心理内容.
- 之前对MB神经相关的研究经常使用诱导状态,显示前部激活.
- 自发性MB的神经基础仍然不太了解.
研究的目的:
- 在没有诱导状态的情况下,研究自发性脑空 (MB) 的神经相关性.
- 测试 MB 是由故意压制心理内容而产生的假设.
- 为了区分自发性MB的神经活动与诱导的MB.
主要方法:
- fMRI与31名参与者的经验采样相结合.
- 对MB报告的单变量分析,以确定大脑区域的激活/关闭.
- 贝叶斯兴趣区域分析和对比分析,将MB与以内容为导向的状态进行比较.
主要成果:
- 自发的MB显示了头,额头,头顶和胸膜区域的失活.
- 在自发的MB期间没有观察到前额部激活.
- 证实了额头失活,与诱导的MB研究的发现形成鲜明对比.
- 在将MB与以内容为导向的状态进行比较时,左角环表现出停用.
结论:
- 自发性脑膜炎的特点是大脑的广泛停活,特别是在甲状腺皮层节点.
- 蓄意抑制心理内容可能不是MB的唯一机制.
- 研究指南显著影响MB研究中观察到的神经激活模式.
- 这些发现为自发MB和意识的现象学提供了机械的见解.
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