Few studies have quantified what an individual remembers about a laboratory-controlled stressor. Here, we aimed to replicate previous work by using a modified version of the Trier Social Stress Test (TSST) to quantify participant memory for a stressful experience. We also aimed to extend this work by quantifying false and intrusive memories that ensued. One hundred and seven participants were exposed to the TSST (stress) or the friendly TSST (f-TSST; no stress). The TSST required participants to deliver a ten-minute speech in front of two laboratory panel members as part of a mock job interview; the f-TSST required participants to casually converse with the panel members about their interests. In both conditions, the panel members interacted with (central) or did not interact with (peripheral) several objects sitting on a desk in front of them. The next day, participants’ memory for the objects was assessed with recall and recognition tests. We also quantified participants’ intrusive memories on Days 2, 4, 6, and 8. Stressed participants recalled more central objects and exhibited greater recognition memory, particularly for central objects, than controls. Stress also led to less false recall and more intrusive memories on Days 2 and 4. Consistent with previous work, these findings suggest that participants exhibit enhanced memory for the central details of a stressful experience; they also extend prior work by showing that participants exposed to a stressor have less false memories and experience intrusive memories for several days following the event. The modified TSST paradigm used here may be useful for researchers studying not only what participants remember about a stressful event but also their susceptibility to intrusive memory formation.

中文翻译：

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社会评价压力增强了中心细节记忆，减少了错误记忆，并导致了持续数天的侵入性记忆

很少有研究量化个人对实验室控制的压力源的记忆。在这里，我们的目的是通过使用特里尔社会压力测试（TSST）的修改版本来复制以前的工作，以量化参与者对压力体验的记忆。我们还旨在通过量化随之而来的错误和侵入性记忆来扩展这项工作。一百零七名参与者接受了 TSST（压力）或友好的 TSST（f-TSST；无压力）。TSST 要求参与者在两名实验室小组成员面前发表十分钟的演讲，作为模拟工作面试的一部分；f-TSST 要求参与者随意与小组成员谈论他们的兴趣。在这两种情况下，小组成员都与（中央）或不与（外围）坐在他们面前桌子上的几个物体互动。第二天，通过回忆和识别测试来评估参与者对物体的记忆。我们还量化了参与者在第 2、4、6 和 8 天的侵入性记忆。与对照组相比，承受压力的参与者会回忆起更多的中心物体，并表现出更强的识别记忆，特别是对于中心物体。压力还导致第 2 天和第 4 天的错误回忆减少，侵入性记忆增加。与之前的研究一致，这些发现表明，参与者对压力经历的核心细节表现出更强的记忆力；他们还扩展了之前的工作，表明暴露于压力源的参与者在事件发生后的几天内错误记忆较少，并且经历了侵入性记忆。这里使用的修改后的 TSST 范式可能对研究人员有用，不仅可以研究参与者对压力事件的记忆，还可以研究他们对侵入性记忆形成的敏感性。