Laboratoire de Psychologie Des Pays de La Loire, Nantes Université, Univ Angers, LPPL - EA 4638), 44000, Nantes, France.
Clinical Gerontology Department, CHU Nantes, Nantes, France.
Neurol Sci. 2022 Sep;43(9):5259-5265. doi: 10.1007/s10072-022-06163-z. Epub 2022 May 30.
There is a recent interest in pupil dilation during the retrieval of autobiographical memory. We pursued this line of research by measuring pupil diameter during the retrieval of self-defining memories, that is, memories that are highly vivid, emotionally intense, and are retrieved to reflect enduring concerns in a person's life.
We invited 40 participants to retrieve self-defining memories while their pupil activity was recorder with eye-tracking glasses. We analyzed memories regarding specificity (i.e., specific or general) and emotional valence (neutral, positive, negative, or mixed).
Analysis demonstrated larger pupil diameter during the retrieval of specific than general self-defining memories. However, no significant differences in pupil diameter were observed across the four emotional categories of self-defining memories.
The increased pupil size during retrieval of specific self-defining memories can be attributed to the autonoetic experience during retrieval of these memories and/or to the cognitive load as required to construct these memoires. By investigating pupil dilation during the retrieval of self-defining memories, our study provides an original, ecological, and reliable physiological assessment of these memories.
最近人们对自传体记忆提取过程中的瞳孔扩张很感兴趣。我们通过测量自我定义记忆提取过程中的瞳孔直径来进行这项研究，自我定义记忆是指那些生动、强烈、能反映个人生活中持久关注点的记忆。
我们邀请了 40 名参与者在使用眼动追踪眼镜记录瞳孔活动的情况下回忆自我定义的记忆。我们分析了记忆的特异性（即具体或一般）和情绪效价（中性、积极、消极或混合）。
分析表明，在回忆具体的自我定义记忆时，瞳孔直径较大。然而，在自我定义记忆的四个情绪类别中，瞳孔直径没有观察到显著差异。
在回忆具体的自我定义记忆时，瞳孔尺寸的增加可以归因于这些记忆提取过程中的自传体体验和/或构建这些记忆所需的认知负荷。通过研究自我定义记忆提取过程中的瞳孔扩张，我们的研究为这些记忆提供了一种原始、生态和可靠的生理评估。
