论文标题

双态感知,精度和神经调节

Bistable perception, precision and neuromodulation

论文作者

Novicky, Filip, Parr, Thomas, Friston, Karl, Mirza, M. Berk, Sajid, Noor

论文摘要

双态感知是通过观察一种静态,模棱两可的(视觉)刺激,并具有两个可能的解释。在这里,我们提出了一个活跃的(贝叶斯)推理,对双态感知和假定的推论,即从将焦点转移到不同视觉特征的特定眼动动作中的不同解释(即推断)之间的感知转变(即推断)。正式地,这些推论是精确控制的结果,它决定了信念的信念,并改变了两个截然不同的感知之间可以感知的和交替的频率。我们假设,精度调制可以相互作用以产生相似的双态感知频率。我们使用颈部立方体范式的数值模拟对此进行了验证,并演示了多种途径,这些路线具有感知交替的频率。我们的结果为复杂的精确余额承保双态感知提供了一个(实用的)计算说明。重要的是,这些精度参数可以视为特定神经递质的计算同源物,即乙酰胆碱,去甲肾上腺素,多巴胺 - 以前与控制双向感知有关,从而提供了神经化学和感知之间的计算联系。

Bistable perception follows from observing a static, ambiguous, (visual) stimulus with two possible interpretations. Here, we present an active (Bayesian) inference account of bistable perception and posit that perceptual transitions between different interpretations (i.e., inferences) of the same stimulus ensue from specific eye movements that shift the focus to a different visual feature. Formally, these inferences are a consequence of precision control that determines how confident beliefs are and change the frequency with which one can perceive - and alternate between - two distinct percepts. We hypothesised that there are multiple, but distinct, ways in which precision modulation can interact to give rise to a similar frequency of bistable perception. We validated this using numerical simulations of the Necker's cube paradigm and demonstrate the multiple routes that underwrite the frequency of perceptual alternation. Our results provide an (enactive) computational account of the intricate precision balance underwriting bistable perception. Importantly, these precision parameters can be considered the computational homologues of particular neurotransmitters - i.e., acetylcholine, noradrenaline, dopamine - that have been previously implicated in controlling bistable perception, providing a computational link between the neurochemistry and perception.

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