Emotional valence and the free-energy principle.
Emotional valence and the free-energy principle.
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DOI：
10.1371/journal.pcbi.1003094
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发表时间：
2013
影响因子：
4.3
通讯作者：
Coricelli G
中科院分区：
文献类型：
--
作者：
Joffily M;Coricelli G
自由能原理最近被提出作为对感知、学习和行动的统一贝叶斯解释。尽管情感和认知之间有着千丝万缕的联系，但情感尚未在这一框架下形成。效价是贯穿于许多情感研究视角的一个核心概念，它广泛地指情感或其某些方面的积极和消极特征。在本文中，我们提出了一个定义的情绪价的自由能随时间的负变化率。如果考虑到自由能的二阶导数，基本情感形式的动态，如快乐、不快乐、希望、恐惧、失望和宽慰，就可以得到解释。在这个公式中，情绪效价的一个重要功能被证明是调节感官输入原因的学习率。当感觉越来越违背主体的期望时，效价是负的，从而提高了学习率。相反，当感觉越来越满足主体的期望时，效价是正的，并降低学习率。这种情绪效价与学习率之间的动态相互作用凸显了情绪在生物个体适应其所处世界的意外变化中所起的关键作用。情感在人类和其他动物适应环境变化的过程中起着至关重要的作用。然而，在非平稳环境下的贝叶斯学习模型中，情感被忽略了。自由能原理最近被提出作为生物制剂学习、感知和行动的统一解释。在本文中，我们根据自由能的变化率，或者在一些简化的假设下，根据预测误差随时间的变化，提出了情绪效价（即情绪的积极和消极特征）的正式定义。这种形式化导致了一种直接而简单的元学习方案，它解释了认知和情感之间复杂而相互的相互作用。我们用一个情感代理来实例化这个方案，它能够动态地为所访问的世界的每个新状态分配情感价，并体验基本的情感形式。至关重要的是，我们假设的主体使用情感效价来动态适应世界上意想不到的变化。所提出的方案在某种意义上是非常普遍的，因为它不与任何特定的感官输入生成模型相关联。
The free-energy principle has recently been proposed as a unified Bayesian account of perception, learning and action. Despite the inextricable link between emotion and cognition, emotion has not yet been formulated under this framework. A core concept that permeates many perspectives on emotion is valence, which broadly refers to the positive and negative character of emotion or some of its aspects. In the present paper, we propose a definition of emotional valence in terms of the negative rate of change of free-energy over time. If the second time-derivative of free-energy is taken into account, the dynamics of basic forms of emotion such as happiness, unhappiness, hope, fear, disappointment and relief can be explained. In this formulation, an important function of emotional valence turns out to regulate the learning rate of the causes of sensory inputs. When sensations increasingly violate the agent's expectations, valence is negative and increases the learning rate. Conversely, when sensations increasingly fulfil the agent's expectations, valence is positive and decreases the learning rate. This dynamic interaction between emotional valence and learning rate highlights the crucial role played by emotions in biological agents' adaptation to unexpected changes in their world. Emotion plays a crucial role in the adaptation of humans and other animals to changes in their world. Nevertheless, emotion has been neglected in Bayesian models of learning in non-stationary environments. The free-energy principle has recently been proposed as a unified account of learning, perception and action in biological agents. In this paper, we propose a formal definition of emotional valence (i.e., the positive and negative character of emotion) in terms of the rate of change of free-energy or, under some simplifying assumptions, of prediction error over time. This formalization leads to a straightforward and simple meta-learning scheme that accounts for the complex and reciprocal interaction between cognition and emotion. We instantiate this scheme with an emotional agent who is able to dynamically assign emotional valence to every new state of the world that is visited and to experience basic forms of emotion. Crucially, our hypothetical agent uses emotional valence to dynamically adapt to unexpected changes in the world. The proposed scheme is very general in the sense that it is not tied to any particular generative model of sensory inputs.
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DOI：
10.1016/j.physd.2009.08.002
发表时间：
2009-11-01
期刊：
Physica D. Nonlinear phenomena
影响因子：
--
作者：
Daunizeau J;Friston KJ;Kiebel SJ
通讯作者：
Kiebel SJ
影响因子：
3.7
作者：
Friston KJ;Daunizeau J;Kiebel SJ
通讯作者：
Kiebel SJ
影响因子：
3.8
作者：
Foland-Ross LC;Gotlib IH
通讯作者：
Gotlib IH
DOI：
10.1007/978-1-4614-0751-5_9
发表时间：
2012-01-01
期刊：
COMPUTATIONAL NEUROSCIENCE OF DRUG ADDICTION
影响因子：
--
作者：
Friston, Karl J.
通讯作者：
Friston, Karl J.
影响因子：
7.8
作者：
Friston, KJ
通讯作者：
Friston, KJ