在人类情境性条件反射中,新奇探索对消退学习巩固无影响。

No effect of novel exploration on the consolidation of extinction learning in human context conditioning.

作者信息

Agren Thomas, Björkstrand Johannes, Rosén Jörgen

机构信息

Department of Psychology, Uppsala University, Box 1225, 751 42, Uppsala, Sweden.

Department of Occupational Health, Psychology and Sports Science, University of Gävle, Gävle, Sweden.

出版信息

Sci Rep. 2025 Jun 20;15(1):20151. doi: 10.1038/s41598-025-05235-2.

Abstract

Animal research show that a novel exploration task performed shortly before a learning episode can strengthen hippocampal memory consolidation through behavioural tagging mechanisms. The aim of the present study was to conceptually translate behavioural tagging results to humans using a novel exploration task in virtual reality. Mimicking conditions for animal research, sixty participants underwent a context conditioning task in virtual reality to create a hippocampal-dependent fear memory. Twenty-four hours later, half of the participants performed a novel exploration task in virtual reality shortly before extinction learning the next day, and the other half performed a visual control task. Twenty-four hours after extinction learning, remaining fear responses were evaluated by a reinstatement procedure. Results showed that participants acquired context conditioning, but no effect of the novel exploration procedure on fear responses during reinstatement could be noted. Thus, the study did not conceptually translate the rodent results to humans; possible reasons for this, as well as future directions, are discussed.

摘要

动物研究表明,在学习阶段前不久执行的一项新颖探索任务可通过行为标记机制加强海马体记忆巩固。本研究的目的是使用虚拟现实中的一项新颖探索任务,从概念上将行为标记结果转化到人类身上。模仿动物研究的条件,60名参与者在虚拟现实中接受了情境条件任务,以创建海马体依赖性恐惧记忆。24小时后,一半参与者在第二天进行消退学习前不久在虚拟现实中执行了一项新颖探索任务,另一半执行了视觉控制任务。在消退学习24小时后,通过恢复程序评估剩余的恐惧反应。结果显示参与者获得了情境条件,但未发现新颖探索程序对恢复过程中的恐惧反应有影响。因此,该研究未能从概念上将啮齿动物的结果转化到人类身上;讨论了对此可能的原因以及未来的方向。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/74ae/12181346/a9e9c3785f03/41598_2025_5235_Fig1_HTML.jpg

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