Modification of episodic memories due to integration with a self-model

由于与自我模型整合而修改情景记忆

• 批准号: 419049386
• 负责人: Professor Dr. Nikolai Axmacher
• 金额: --
• 依托单位: Abteilung Neuropsychologie
• 依托单位国家: 德国
• 项目类别: Research Units
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/419049386?language=en
• 关键词: Modification; episodic; memories; due; integration

Project P8 aims to investigate how scenario formation results from an integration between memory and the self-model. We establish and conduct novel experimental paradigms that elucidate the impact of the self-model on episodic memories. Eventually, we aim to develop a novel conceptual and empirical framework on this topic. We hypothesize that the integration of episodic memories with the self-model can be studied best in situations when this process cannot be exerted seamlessly and automatically. This is the case during self-model–incongruent episodes that elicit feelings of shame or guilt. We test whether and how memory of these episodes differs from memory of episodes that elicit negative emotions other than shame and guilt and of neutral episodes. In a first study, we collected reports of more than 3,000 autobiographical episodes across several months and analyzed them with artificial intelligence methods. Our results indicate that memories of shame-inducing episodes do not differ in their content from episodes that elicit guilt. However, they differ from memories of other episodes in their phenomenological characteristics, suggesting that they are specifically affected by the self-model. In a second study that was conducted in close collaboration with P4, we experimentally induced feelings of shame. We then tested whether and how memory of these episodes could be modified by subsequent manipulations that either affected the content of these memories or their relevance for the self-model. Finally, in close collaboration with other projects, in particular P7, we developed a comprehensive theoretical framework of self-memory integration and of the impact of self-incongruent emotions. In the second funding period, we will conduct a series of fMRI studies to investigate the impact of the self-model on scenario construction at the neural level. Building on experimental paradigms developed in the first funding period with P4, we will first test how the neural signature of memories for shame-related episodes differs from the memories of control episodes that do not induce shame. We will also test how these neural signatures relate to narrative features and phenomenological characteristics of these episodes. We will then study whether and how these effects can be altered by subsequent modifications of these memories. Additional studies will address the relationship between shame effects on scenario formation (i.e., memory retrieval) with neural activity patterns during encoding, and the relative impact of shame on episodic memory traces vs. semantic knowledge. The results from these studies will allow us to test (and possibly revise or update) our conceptual framework on self-memory integration that we developed in the first funding period. The success of P8 critically relies on close collaborations with both empirical research and conceptual analysis in other subprojects and will, in turn, inform philosophical and computational models.

Project P8旨在研究场景形成如何是由于内存与自模型之间的整合而产生的。我们建立并进行新的实验范式，以阐明自模型对情节记忆的影响。最终，我们旨在在此主题上开发一个新颖的概念和经验框架。我们假设在无法无缝和自动施加此过程时，在此过程中，情节记忆与自我模型的整合可以最好地研究。在自我模型 - 奇异情节中，这种情况就是这种情况，引起了震惊或内gui的感觉。我们测试这些情节的记忆是否与引起震惊，内gui和中性情节以外的其他负面情绪的情节的记忆有何不同。在第一项研究中，我们在几个月内收集了3,000多个自传发作的报告，并通过人工智能方法对其进行了分析。我们的结果表明，冲击引起的发作的记忆与引起内gui的情节的内容没有差异。但是，它们与其他情节的记忆不同，其现象学特征表明它们特别受自模型的影响。在与P4密切合作进行的第二项研究中，我们实验引起了冲击感。然后，我们测试了这些事件的记忆是否以及如何通过影响这些记忆内容或与自模型相关的后续操作来修改这些事件的记忆。最后，在与其他项目（尤其是P7）的密切合作中，我们开发了一个自我内存整合的全面理论框架和自我统一情绪的影响。在第二个资金期间，我们将进行一系列功能磁共振成像研究，以研究自模型对神经层面场景构建的影响。在实验范式的基础上，我们将首先测试与电击相关发作的记忆的神经元信号与不会引起冲击的控制发作的记忆的不同。我们还将测试这些神经元特征如何与这些事件的叙事特征和现象学特征有关。然后，我们将研究这些记忆的随后修改是否可以改变这些效果。其他研究将解决冲击对场景形成（即记忆检索）与编码过程中神经元活动模式的关系，以及冲击对情节记忆痕迹与语义知识的相对影响。这些研究的结果将使我们能够测试（并可能修改或更新）我们在第一个融资期间开发的关于自我内存整合的概念框架。 P8的成功在批判性地依赖于与其他副标理中的经验研究和概念分析的密切合作，并将依次为哲学和计算模型提供信息。