慢性压力会损害时间记忆

Raquel Cocenas-Silva, S. Droit-Volet, E. Gherardi-Donato
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引用次数: 5

摘要

时间记忆是由对记忆中的持续时间进行编码和整合的过程形成的。这些过程可以在急性压力环境中得到增强,从而提高唤醒水平,这是压力的一般适应综合征警报阶段的典型表现。然而,长期的压力经历(慢性压力)会破坏记忆中持续时间的存储。本研究调查了50名在紧急情况下工作的护士的心理和生理压力对时间记忆的影响。他们执行了一项时间概括任务,在标准持续时间(4 s)的学习和测试之间有24小时的保留延迟。采集他们的血液以检查与压力相关的循环炎症标志物。他们的压力感也通过两份自我报告的问卷进行了调查,即工作压力量表(JSS)和感知压力表(PSS)。结果表明,当参与者高度暴露于职业压力(JSS)时,时间判断的变化更大。时间判断的准确性和感知压力水平之间也存在二次关系。事实上,准确反应的比例增加,直到达到一定的感知压力阈值,然后下降。结果还表明,一氧化氮与准确反应的比例之间存在显著的二次关系。低压力水平与一段时间内记忆力的改善呈正相关,这与压力的一般适应综合征警报阶段引发的反应一致。然而,在一定程度的压力之上,心理和生理压力会损害时间记忆。
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Chronic Stress Impairs Temporal Memory
Temporal memory is formed from processes encoding and consolidating durations in memory. These processes can be enhanced in acute stressful contexts, which increase the arousal level, typical of the alert phase of the General Adaptation Syndrome of stress. However, prolonged stressful experiences (chronic stress) can cause damage to the storage of duration in memory. This study investigated the effects of psychological and physiological stress on the temporal memory of 50 nurses working in an emergency situation. They performed a temporal generalization task with a retention delay of 24 hours between the learning of a standard duration (4 s) and testing. Their blood was collected to examine circulating inflammatory markers related to stress. Their feeling of stress was also examined with two self-reported questionnaires, the Job Stress Scale (JSS) and the Perceived Stress Scale (PSS). The results show that temporal judgment is more variable when participants have high exposure to occupational stress (JSS). A quadratic relationship was also observed between the accuracy of time judgment and the level of perceived stress. Indeed, the proportion of accurate responses increased until a certain threshold of perceived stress, and then decreased. The results also showed a significant quadratic relationship between nitric oxide and the proportion of accurate responses. A low stress level is positively related to improving memory for a time, consistent with the reaction triggered in the alarm stage of the General Adaptation Syndrome of stress. However, above a certain level of stress, psychological and physiological stress damages temporal memory.
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来源期刊
CiteScore
1.60
自引率
14.30%
发文量
23
期刊介绍: Timing & Time Perception aims to be the forum for all psychophysical, neuroimaging, pharmacological, computational, and theoretical advances on the topic of timing and time perception in humans and other animals. We envision a multidisciplinary approach to the topics covered, including the synergy of: Neuroscience and Philosophy for understanding the concept of time, Cognitive Science and Artificial Intelligence for adapting basic research to artificial agents, Psychiatry, Neurology, Behavioral and Computational Sciences for neuro-rehabilitation and modeling of the disordered brain, to name just a few. Given the ubiquity of interval timing, this journal will host all basic studies, including interdisciplinary and multidisciplinary works on timing and time perception and serve as a forum for discussion and extension of current knowledge on the topic.
期刊最新文献
Causation Bridges the Two Times Consciousness Is Quantum State Reduction Which Creates the Flow of Time Comparing the Accuracy of Motor Reproduction and Timeline Estimation Methods for Interval Timing in Children Doing and Knowing “Physical Time within Human Time” and “Bridging the Neuroscience and Physics of Time”
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