B3 - Interozeptive Vorhersagen: neurokognitive Mechanismen, Determinanten und Funktionen

B3 - 内感受预测：神经认知机制、决定因素和功能

• 批准号: 277064516
• 负责人: Professorin Dr. Simone Schütz-Bosbach
• 金额: --
• 依托单位: Lehrstuhl für Allgemeine und Experimentelle Psychologie
• 依托单位国家: 德国
• 项目类别: Research Units
• 财政年份: 2015
• 资助国家: 德国
• 起止时间: 2014-12-31 至 2023-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/277064516?language=en
• 关键词: B3; Interozeptive; Vorhersagen; neurokognitive; Mechanismen

The notion of predictive coding assumes that perception is an iterative process between prior knowledge and sensory feedback. To date, however, this perspective has been applied primarily to exteroceptive perception, such as vision and audition, as well as action. More recently, this predictive, inferential framework has theoretically also been suggested on interoception, the internal physiological condition the body is in. On this view subjective feeling states (i.e. emotion and self- awareness) are generated by active top-down inference on the internal and external causes of interoceptive afferents. The proposed project will provide a direct empirical investigation of this hypothesis by studying brain activity underlying interoceptive prediction by means of EEG and fMRI methodology in an established repetition suppression paradigm. We expect neural attenuation of interoceptive signals in response to expected compared to unexpected changes of interoceptive signals. Further studies shall investigate the specific role of the motor system in predicting sensory and bodily afferences. Finally, the neural correlates of attention to predictive exteroceptive and interoceptive signals shall be specified. The results of this project can help to illuminate interactions between cognition, perception, emotion as well as aspects of self-awareness.

预测编码的概念假设知觉是先验知识和感觉反馈之间的迭代过程。然而，到目前为止，这一观点主要应用于外部知觉，如视觉和听觉，以及行动。最近，这种预测性、推断性的框架在理论上也被认为是关于内部感觉的，内部感觉是身体所处的内部生理条件。这种观点认为，主观感觉状态(即情绪和自我意识)是通过对内感传入的内因和外因进行自上而下的主动推理而产生的。这项拟议的项目将在已建立的重复抑制范式中，通过EEG和fMRI方法研究内感预测背后的大脑活动，为这一假说提供直接的实证研究。我们预计，与预期的相互感觉信号的意外变化相比，相互感觉信号的神经衰减是对预期的反应。进一步的研究将调查运动系统在预测感觉和身体传入方面的具体作用。最后，应具体说明注意预测性外部感觉和内部感觉信号的神经关联。这个项目的结果有助于阐明认知、感知、情感以及自我意识方面之间的相互作用。