Differential effects of sleep on explicit and implicit memory for potential trauma reminders: findings from an analogue study
Differential effects of sleep on explicit and implicit memory for potential trauma reminders: findings from an analogue study
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睡眠对潜在创伤提醒的外显记忆和内隐记忆的不同影响：模拟研究的结果
DOI：
10.1080/20008198.2019.1644128
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发表时间：
2019
影响因子：
5
通讯作者：
T. Michael
中科院分区：
文献类型：
--
作者：
M. R. Sopp;A. Brueckner;Sarah K. Schäfer;J. Lass;T. Michael
摘要背景：最近的研究结果表明，睡眠相关记忆处理的破坏与创伤后应激症状的发展有关。更具体地说，暴露于类似的创伤事件会导致更少的侵入性记忆，随后是睡眠而不是持续清醒。然而，相互竞争的证据表明，睡眠不足可能会减少侵入性的重新体验。为了解决这些相互矛盾的说法，我们使用模拟程序研究了睡眠（而不是部分睡眠剥夺）如何调节外显和内隐的创伤记忆。方法：健康参与者 (N = 41) 被分配到睡眠组或部分睡眠剥夺组。在夜间睡眠之前，两组人都接触过“创伤性”图片故事。睡眠或部分睡眠剥夺后，参与者接受了外显记忆和内隐记忆测试，以寻找潜在的创伤提醒。此后，参与者完成了嵌入干扰任务中的入侵触发任务。结果：分析显示，与部分睡眠剥夺相比，睡眠后对潜在创伤提醒的外显记忆更高。内隐记忆没有发现组间差异。与部分睡眠剥夺相比，参与者在睡眠后的反应较少。结论：目前的研究结果支持睡眠在创伤记忆处理中的保护作用，这在创伤后第一晚睡眠后可能会很明显。尽管还需要更多的研究，但我们的结果证实了促进遭受创伤的个体安宁睡眠的重要性。亮点 • 睡眠可增强自愿创伤记忆。• 睡眠不会增强内隐创伤记忆。• 睡眠与侵入减少有关。• 未来的研究应调查基于睡眠的干预措施对PTSD 症状的影响。
ABSTRACT Background: Recent findings suggest that disruptions of sleep-related memory processing are involved in the development of posttraumatic stress symptoms. More specifically, exposure to an analogue traumatic event resulted in fewer intrusive memories, when it was followed by sleep instead of continued wakefulness. However, competing evidence suggests that sleep deprivation may reduce intrusive re-experiencing. To address these conflicting accounts, we examined how sleep – as opposed to partial sleep deprivation – modulates explicit and implicit trauma memory using an analogue procedure. Methods: Healthy participants (N = 41) were assigned to a Sleep or Partial sleep deprivation group. Prior to nocturnal sleep, both groups were exposed to “traumatic“ picture stories. After sleep or partial sleep deprivation, participants were subjected to tests of explicit and implicit memory for potential trauma reminders. Thereafter, participants completed an intrusion triggering task that was embedded in a distractor task. Results: Analyses revealed higher explicit memory for potential trauma reminders after sleep as compared to partial sleep deprivation. No group differences were found for implicit memory. Participants responded with fewer intrusions after sleep than following partial sleep deprivation. Conclusions: The current findings support a protective role of sleep in trauma memory processing, which may be evident after the first night of sleep post-trauma. Although more research is needed, our results corroborate the importance of promoting restful sleep in trauma-exposed individuals. HIGHLIGHTS • Sleep enhanced voluntary trauma memory.• Sleep did not enhance implicit trauma memory.• Sleep was associated with decreased intrusions.• Future studies should investigate effects of sleep-based interventions on PTSD symptoms.
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DOI：
10.1016/j.ijpsycho.2014.11.006
发表时间：
2015-12
期刊：
International journal of psychophysiology : official journal of the International Organization of Psychophysiology
影响因子：
--
作者：
Lissek S;van Meurs B
通讯作者：
van Meurs B
影响因子：
5.6
作者：
Daniel J Buysse;C. Reynolds;T. Monk;C. C. Hoch-C.;A. Yeager;D. Kupfer
通讯作者：
Daniel J Buysse;C. Reynolds;T. Monk;C. C. Hoch-C.;A. Yeager;D. Kupfer
影响因子：
10.3
作者：
Babson, Kimberly A.;Feldner, Matthew T.
通讯作者：
Feldner, Matthew T.
影响因子：
4.3
作者：
Brown, Tyish S. Hall;Akeeb, Ameenat;Mellman, Thomas A.
通讯作者：
Mellman, Thomas A.
影响因子：
3.7
作者：
Holz E;Lass-Hennemann J;Streb M;Pfaltz M;Michael T
通讯作者：
Michael T