Mason Jonathan W D
Mathematical Institute, University of Oxford, Oxford OX2 6GG, UK.
Entropy (Basel). 2019 Jan 13;21(1):60. doi: 10.3390/e21010060.
Over recent decades several mathematical theories of consciousness have been put forward including Karl Friston's Free Energy Principle and Giulio Tononi's Integrated Information Theory. In this article we further investigate theory based on Expected Float Entropy (EFE) minimisation which has been around since 2012. EFE involves a version of Shannon Entropy parameterised by relationships. It turns out that, for systems with bias due to learning, certain choices for the relationship parameters are isolated since giving much lower EFE values than others and, hence, the system defines relationships. It is proposed that, in the context of all these relationships, a brain state acquires meaning in the form of the relational content of the associated experience. EFE minimisation is itself an association learning process and its effectiveness as such is tested in this article. The theory and results are consistent with the proposition of there being a close connection between association learning processes and the emergence of consciousness. Such a theory may explain how the brain defines the content of consciousness up to relationship isomorphism.
在最近几十年里,已经提出了几种关于意识的数学理论,包括卡尔·弗里斯顿的自由能量原理和朱利奥·托诺尼的整合信息理论。在本文中,我们进一步研究基于预期浮动熵(EFE)最小化的理论,该理论自2012年就已存在。EFE涉及一种由关系参数化的香农熵版本。结果表明,对于因学习而存在偏差的系统,关系参数的某些选择是孤立的,因为它们给出的EFE值比其他选择低得多,因此,系统定义了关系。有人提出,在所有这些关系的背景下,大脑状态以相关体验的关系内容的形式获得意义。EFE最小化本身就是一个关联学习过程,本文对其作为关联学习过程的有效性进行了测试。该理论和结果与关联学习过程和意识出现之间存在紧密联系的观点一致。这样一种理论或许可以解释大脑如何在关系同构的层面上定义意识的内容。