Alterations in the Three Components of Selfhood in Persons with Post-Traumatic Stress Disorder Symptoms: A Pilot qEEG Neuroimaging Study.

Q4 Medicine
Open Neuroimaging Journal Pub Date : 2018-04-30 eCollection Date: 2018-01-01 DOI:10.2174/1874440001812010042
Andrew A Fingelkurts, Alexander A Fingelkurts
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引用次数: 5

Abstract

Background and objective: Understanding how trauma impacts the self-structure of individuals suffering from the Post-Traumatic Stress Disorder (PTSD) symptoms is a complex matter and despite several attempts to explain the relationship between trauma and the "Self", this issue still lacks clarity. Therefore, adopting a new theoretical perspective may help understand PTSD deeper and to shed light on the underlying psychophysiological mechanisms.

Methods: In this study, we employed the "three-dimensional construct model of the experiential selfhood" where three major components of selfhood (phenomenal first-person agency, embodiment, and reflection/narration) are related to three Operational Modules (OMs) of the self-referential brain network. These modules can be reliably estimated through operational synchrony analysis of the Electroencephalogram (EEG). Six individuals with PTSD symptoms and twenty-nine sex-, age- and demographic- (race, education, marital status) matched healthy controls underwent resting state EEG signal acquisition with the following estimation of the synchrony strength within every OM.

Results: Our results indicate that subjects with PTSD symptoms had significantly stronger EEG operational synchrony within anterior and right posterior OMs as well as significantly weaker EEG operational synchrony within left posterior OM compared to healthy controls. Moreover, increased the functional integrity of the anterior OM was positively associated with hyperactivity symptoms, reduced synchrony of the left posterior OM was associated with greater avoidance, and increased right posterior OM integrity was positively correlated with intrusion and mood symptoms.

Conclusion: The results are interpreted in light of the triad model of selfhood and its theoretical and clinical implications (including a new treatment approach) are discussed.

Abstract Image

创伤后应激障碍患者自我三个组成部分的改变:一项qEEG神经影像学研究
背景与目的:了解创伤如何影响患有创伤后应激障碍(PTSD)症状的个体的自我结构是一个复杂的问题,尽管有一些尝试解释创伤与“自我”之间的关系,但这个问题仍然缺乏清晰度。因此,采用新的理论视角可能有助于更深入地理解创伤后应激障碍,并揭示其潜在的心理生理机制。方法:本研究采用“体验性自我的三维建构模型”,其中自我的三个主要组成部分(现象性第一人称代理、体现和反思/叙述)与自我指涉脑网络的三个操作模块(OMs)相关。这些模块可以通过脑电图(EEG)的操作同步分析可靠地估计。6名有PTSD症状的个体和29名性别、年龄和人口统计学(种族、教育程度、婚姻状况)匹配的健康对照接受静息状态脑电图信号采集,并对每个OM内的同步强度进行以下估计。结果:与健康对照组相比,有PTSD症状的受试者脑电图操作同步性显著增强,左后侧脑电图操作同步性显著减弱。此外,前OM功能完整性的增加与多动症状呈正相关,左侧后OM同步性的降低与更大的回避相关,右侧后OM完整性的增加与入侵和情绪症状呈正相关。结论:本研究结果符合自我三联征模型,并讨论了其理论和临床意义(包括一种新的治疗方法)。
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来源期刊
Open Neuroimaging Journal
Open Neuroimaging Journal Medicine-Radiology, Nuclear Medicine and Imaging
CiteScore
0.70
自引率
0.00%
发文量
3
期刊介绍: The Open Neuroimaging Journal is an Open Access online journal, which publishes research articles, reviews/mini-reviews, and letters in all important areas of brain function, structure and organization including neuroimaging, neuroradiology, analysis methods, functional MRI acquisition and physics, brain mapping, macroscopic level of brain organization, computational modeling and analysis, structure-function and brain-behavior relationships, anatomy and physiology, psychiatric diseases and disorders of the nervous system, use of imaging to the understanding of brain pathology and brain abnormalities, cognition and aging, social neuroscience, sensorimotor processing, communication and learning.
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