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首页> 外文期刊>Journal of psychiatric research >After facing traumatic stress: brain activation, cognition and stress coping in policemen.
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After facing traumatic stress: brain activation, cognition and stress coping in policemen.

机译：面对创伤性压力后：警察的大脑激活，认知和压力应对。

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INTRODUCTION: Resilience can be defined as the capacity to recover following stress or trauma exposure by adopting healthy strategies for dealing with trauma and stress. Although the importance of stress resilience has been recognized, the underlying neurocognitive mediators have not yet been identified. Thus, the primary goal of this study was to investigate memory-related brain activity in traumatized policemen who attended a pre-traumatic general stress coping program. METHOD: Ten traumatized male police officers were compared to demographically matched non-traumatized officers (n=15) on associative memory by using a block design paradigm. Participants with either another psychiatric comorbidity or neurological disorder were excluded. During functional brain imaging (1.5-Tesla), face-profession pairs had to be encoded twice. For subsequent retrieval the faces were presented as cue stimuli for associating the category of the prior learned profession. Additionally, clinical pattern, stress coping style, and cognitive parameters were assessed. RESULTS: Less BOLD activation was found in the hippocampus, parahippocampal gyrus and fusiform gyrus in the trauma group when compared with the non-trauma group during encoding. This was accompanied by slower reaction times in the trauma group during retrieval. Further impairments were found in context memory and in the use of positive cognitive coping strategies. DISCUSSION: Support was provided for the presence of memory-related disturbances in brain activity associated with trauma even in a resilient population. The contribution of the changes in stress coping ability needs to be further examined in longitudinal studies.
机译：简介：韧性可定义为通过采用健康的策略来应对创伤和压力而恢复压力或创伤后的恢复能力。尽管人们已经认识到了压力复原力的重要性，但尚未发现潜在的神经认知介质。因此，这项研究的主要目的是调查参加创伤前一般压力应对方案的受过创伤的警察中与记忆有关的大脑活动。方法：采用街区设计范式，将十名受过创伤的男警官与人口统计学上未受伤的警官（n = 15）进行了联想记忆的比较。患有另一种精神病合并症或神经系统疾病的参与者被排除在外。在功能性脑成像（1.5-Tesla）中，必须对面部专业对进行两次编码。为了进行后续检索，将面部作为提示刺激呈现出来，以关联先前所学专业的类别。此外，评估了临床模式，压力应对方式和认知参数。结果：与非创伤组相比，创伤组海马，海马旁回和梭状回回的BOLD激活较少。这伴随着创伤组在恢复过程中反应时间变慢。在情境记忆和积极认知应对策略的使用中发现了进一步的障碍。讨论：即使在弹性人群中，也为与创伤相关的脑活动中与记忆有关的障碍的存在提供了支持。在纵向研究中，应力应对能力变化的贡献需要进一步研究。

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