University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK.
Proc Biol Sci. 2019 Aug 14;286(1908):20190510. doi: 10.1098/rspb.2019.0510. Epub 2019 Jul 31.
Free will is an apparent paradox because it requires a historical identity to escape its history in a self-guided fashion. Philosophers have itemized design features necessary for this escape, scaling from action to agency and vice versa. These can be organized into a coherent framework that neurocognitive capacities provide and that form a basis for neurocognitive free will. These capacities include (1) adaptive access to unpredictability, (2) tuning of this unpredictability in the service of hierarchical goal structures, (3) goal-directed deliberation via search over internal cognitive representations, and (4) a role for conscious construction of the self in the generation and choice of alternatives. This frames free will as a process of generative self-construction, by which an iterative search process samples from experience in an adaptively exploratory fashion, allowing the agent to explore itself in the construction of alternative futures. This provides an explanation of how effortful conscious control modulates adaptive access to unpredictability and resolves one of free will's key conceptual problems: how randomness is used in the service of the will. The implications provide a contemporary neurocognitive grounding to compatibilist and libertarian positions on free will, and demonstrate how neurocognitive understanding can contribute to this debate by presenting free will as an interaction between our freedom and our will.
自由意志是一个明显的悖论,因为它需要一个历史身份来以自我引导的方式摆脱其历史。哲学家们已经详细列出了这种逃避所需的设计特征,从行动到代理,反之亦然。这些可以组织成一个连贯的框架,神经认知能力提供了这个框架,并且构成了神经认知自由意志的基础。这些能力包括:(1)自适应访问不可预测性;(2)调整这种不可预测性,以服务于层次化的目标结构;(3)通过在内部认知表示中搜索进行目标导向的思考;(4)意识在自我生成和选择替代方案中的作用。这将自由意志定义为一种生成性自我建构的过程,通过这个过程,迭代搜索过程以自适应探索的方式从经验中采样,使代理能够在构建替代未来时探索自己。这解释了有意识的努力控制如何调节对不可预测性的自适应访问,并解决了自由意志的一个关键概念问题:随机性如何用于服务于意志。这些含义为自由意志的相容论和自由意志论立场提供了当代神经认知基础,并通过将自由意志表现为我们的自由和意志之间的相互作用,展示了神经认知理解如何为这场辩论做出贡献。