论文标题
是否有足够的证据表明皮质系统中的关键性?
Is there sufficient evidence for criticality in cortical systems?
论文作者
论文摘要
许多研究发现证据表明大脑在临界点(一种被称为自组织的关键性)的过程。最近的一篇论文发现了与神经培养物,麻醉或清醒大脑不同的系统中的显着尺度。我们在这里指出,这些州的多样性会质疑批判性在信息处理中的任何主张的作用。此外,我们表明两个非关键系统通过了所有临界性测试,这是原始文章中未提供的控制。我们得出的结论是,这种误报表明,大脑中的批判性存在仍未得到证明,并且我们需要更好地扩展分析的方法。
Many studies have found evidence that the brain operates at a critical point, a processus known as self-organized criticality. A recent paper found remarkable scalings suggestive of criticality in systems as different as neural cultures, anesthetized or awake brains. We point out here that the diversity of these states would question any claimed role of criticality in information processing. Furthermore, we show that two non-critical systems pass all the tests for criticality, a control that was not provided in the original article. We conclude that such false positives demonstrate that the presence of criticality in the brain is still not proven and that we need better methods that scaling analyses.