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首页> 外文期刊>Neuron >When the brain loses its self: prefrontal inactivation during sensorimotor processing.
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When the brain loses its self: prefrontal inactivation during sensorimotor processing.

机译:当大脑失去自我时:感觉运动过程中前额叶失活。

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摘要

A common theme in theories of subjective awareness poses a self-related "observer" function, or a homunculus, as a critical element without which awareness can not emerge. Here, we examined this question using fMRI. In our study, we compared brain activity patterns produced by a demanding sensory categorization paradigm to those engaged during self-reflective introspection, using similar sensory stimuli. Our results show a complete segregation between the two patterns of activity. Furthermore, regions that showed enhanced activity during introspection underwent a robust inhibition during the demanding perceptual task. The results support the notion that self-related processes are not necessarily engaged during sensory perception and can be actually suppressed.
机译:主观意识理论中的一个共同主题是具有自相关的“观察者”功能,或称同质性,这是一个关键要素,没有它,意识就不会出现。在这里,我们使用功能磁共振成像检查了这个问题。在我们的研究中,我们使用了类似的感官刺激,将苛刻的感官分类范例所产生的大脑活动模式与自我反省内省时所从事的大脑活动模式进行了比较。我们的结果表明两种活动模式之间完全隔离。此外,在自省的过程中表现出增强活性的区域在严苛的感知任务过程中受到了强烈的抑制。结果支持这样的观念,即与自我相关的过程在感官知觉过程中不一定参与,而实际上可以被抑制。

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