Travelling beyond time: shared brain system for self-projection in the temporal, political and moral domains.

IF 5.4 2区 生物学 Q1 BIOLOGY Philosophical Transactions of the Royal Society B: Biological Sciences Pub Date : 2024-11-04 Epub Date: 2024-09-16 DOI:10.1098/rstb.2023.0414
Amnon Dafni-Merom, Rotem Monsa, Meitar Benbaji, Adi Klein, Shahar Arzy
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Abstract

Mental time travel (MTT), a cornerstone of human cognition, enables individuals to mentally project themselves into their past or future. It was shown that this self-projection may extend beyond the temporal domain to the spatial and social domains. What about higher cognitive domains? Twenty-eight participants underwent functional magnetic resonance imaging (fMRI) while self-projecting to different political, moral and temporal perspectives. For each domain, participants were asked to judge their relationship to various people (politicians, moral figures, personal acquaintances) from their actual or projected self-location. Findings showed slower, less accurate responses during self-projection across all domains. fMRI analysis revealed self-projection elicited brain activity at the precuneus, medial and dorsolateral prefrontal cortex, temporoparietal junction and anterior insula, bilaterally and right lateral temporal cortex. Notably, 23.5% of active voxels responded to all three domains and 27% to two domains, suggesting a shared brain system for self-projection. For ordinality judgement (self-reference), 52.5% of active voxels corresponded to the temporal domain specifically. Self-projection activity overlapped mostly with the frontoparietal control network, followed by the default mode network, while self-reference showed a reversed pattern, demonstrating MTT's implication in spontaneous brain activity. MTT may thus be regarded as a 'mental-experiential travel', with self-projection as a domain-general construct and self-reference related mostly to time. This article is part of the theme issue 'Elements of episodic memory: lessons from 40 years of research'.

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超越时间的旅行:在时间、政治和道德领域自我投射的共享大脑系统。
心理时空旅行(MTT)是人类认知的基石,它能让人在心理上将自己投射到过去或未来。研究表明,这种自我投射可能超越时间领域,延伸到空间和社会领域。那么更高的认知领域呢?28 名参与者在对不同的政治、道德和时间视角进行自我投射时,接受了功能磁共振成像(fMRI)检查。在每个领域,参与者都被要求根据实际或投射的自我位置来判断自己与不同的人(政治家、道德人物、熟人)之间的关系。fMRI 分析显示,自我投射会引起楔前叶、内侧和背外侧前额叶皮层、颞顶交界处、双侧前岛叶和右侧外侧颞叶皮层的大脑活动。值得注意的是,23.5% 的活跃体素对所有三个领域都有反应,27% 的活跃体素对两个领域都有反应,这表明大脑有一个共同的自我投射系统。在常模判断(自我参照)方面,52.5%的活跃体素专门对应颞叶域。自我投射活动主要与前顶叶控制网络重叠,其次是默认模式网络,而自我参照则呈现出相反的模式,这表明 MTT 与自发的大脑活动有关。因此,MTT可被视为一种 "心理-经验旅行",自我投射是一种领域性的构造,而自我参照则主要与时间有关。本文是主题 "外显记忆的要素:40 年研究的经验教训 "的一部分。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
11.80
自引率
1.60%
发文量
365
审稿时长
3 months
期刊介绍: The journal publishes topics across the life sciences. As long as the core subject lies within the biological sciences, some issues may also include content crossing into other areas such as the physical sciences, social sciences, biophysics, policy, economics etc. Issues generally sit within four broad areas (although many issues sit across these areas): Organismal, environmental and evolutionary biology Neuroscience and cognition Cellular, molecular and developmental biology Health and disease.
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