The Markov blankets of life: autonomy, active inference and the free energy principle
The Markov blankets of life: autonomy, active inference and the free energy principle
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DOI：
10.1098/rsif.2017.0792
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发表时间：
2018-01-01
影响因子：
3.9
通讯作者：
Kiverstein, Julian
中科院分区：
文献类型：
--
作者：
Kirchhoff, Michael;Parr, Thomas;Kiverstein, Julian
这项工作涉及生物系统的自主组织。它这样做是通过考虑生物系统的边界，从单个细胞到智人，在主动推理方案下的马尔可夫毯的存在-自由能原理的必然结果。马尔可夫毯在统计意义上定义了系统的边界。在这里，我们考虑如何集体的马尔可夫毯可以自组装成一个全球系统，本身有一个马尔可夫毯，从而提供了一个例子，自治系统可以被理解为具有嵌套和自我维持的边界层。这使我们能够证明：（i）任何生命系统都是马尔可夫覆盖系统，（ii）这些系统的边界不需要与生物体的生物物理边界共同延伸。换句话说，自治系统是由马尔可夫毯的马尔可夫毯分层组成的，一直到单个细胞，一直到你和我，一直到包括本地环境的元素。
This work addresses the autonomous organization of biological systems. It does so by considering the boundaries of biological systems, from individual cells to Home sapiens, in terms of the presence of Markov blankets under the active inference scheme-a corollary of the free energy principle. A Markov blanket defines the boundaries of a system in a statistical sense. Here we consider how a collective of Markov blankets can self-assemble into a global system that itself has a Markov blanket; thereby providing an illustration of how autonomous systems can be understood as having layers of nested and self-sustaining boundaries. This allows us to show that: (i) any living system is a Markov blanketed system and (ii) the boundaries of such systems need not be co-extensive with the biophysical boundaries of a living organism. In other words, autonomous systems are hierarchically composed of Markov blankets of Markov blankets-all the way down to individual cells, all the way up to you and me, and all the way out to include elements of the local environment.