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感知是先验知识和感觉反馈之间的迭代过程。然而，迄今为止，这种观点主要应用于外感受知觉，例如视觉和听觉以及行动。最近，这种预测性、推理性的框架在理论上也被提出在内感受，即身体所处的内部生理状况。根据这种观点，主观感觉状态（即情绪和自我意识）是通过对内部感受的主动自上而下的推理而产生的。和内感受传入的外部原因。拟议的项目将通过在已建立的重复抑制范式中通过脑电图和功能磁共振成像方法研究内感受预测的大脑活动，对这一假设进行直接的实证研究。与内感受信号的意外变化相比，我们预计内感受信号的神经衰减会响应预期的变化。进一步的研究将调查运动系统在预测感觉和身体感受中的具体作用。最后，应指定注意预测性外感受和内感受信号的神经相关性。该项目的结果有助于阐明认知、感知、情感以及自我意识各方面之间的相互作用。