沉湎于积极的方面:眼动追踪和脑电图指标的创伤后成长。

IF 2.3 2区 心理学 Q2 PSYCHIATRY
A J Glazebrook, Jane Shakespeare-Finch, Patrick J Johnston, Jonathan E Robinson
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引用次数: 0

摘要

目的:鉴于已有研究表明创伤后应激障碍(PTSD)患者将更多的注意力转向负面和威胁性的视觉刺激,本研究假设创伤后成长(PTG)患者可能会将更多的注意力转向积极的视觉刺激。方法:为了验证这一假设,在两阶段的研究设计中,收集了72名不同创伤暴露的健康个体在被动观看积极和消极评价图像时在N170时间窗期间记录的眼动追踪数据和脑电图脑活动。使用创伤后成长量表(Tedeschi & Calhoun, 1996)和事件影响量表-修订版(Weiss & Marmar, 1997)测量非临床样本的PTSD和PTSD症状。由于现有研究确定N170是对环境敏感的早期电生理变化,因此对N170进行了检查。结果:分析显示,随着整体PTG和创伤后成长量表子因子“对生活的欣赏”的增加,参与者的瞳孔扩张也增加,参与者更有可能首先凝视并在积极评价的图像上停留更长时间。N170与PTG无相关性。然而,PTSD症状的增加与N170对负面图像的反应性增加有关。结论:眼动追踪研究结果提供了新的生理证据,证明积极意象在PTG较高的人群中具有显著性。对负面图像较大的N170反应可能为PTSD症状严重程度增加的患者提供了明显的威胁识别的生理标记。拥有更多PTG的个体倾向于关注积极的、肯定生活的图像,这可能会支持与PTG发展相关的更具建设性的世界观、深思熟虑的深思熟虑、意义创造和建设性的应对努力。(PsycInfo Database Record (c) 2025 APA,版权所有)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Dwelling on the positive: Eye-tracking and electroencephalogram indicators of posttraumatic growth.

Objective: Since existing research demonstrates people with posttraumatic stress disorder (PTSD) direct more attention toward negative and threatening visual stimuli, this study hypothesized people with posttraumatic growth (PTG) may direct increased attention toward positive visual stimuli.

Method: To examine this hypothesis, eye-tracking data and electroencephalogram brain activity recorded during the N170 time window were collected for 72 healthy individuals with varying trauma exposures as they passively viewed positively and negatively valenced images in a two-phase study design. PTG and PTSD symptoms in this nonclinical sample were measured using the Posttraumatic Growth Inventory (Tedeschi & Calhoun, 1996) and the Impacts of Events Scale-Revised (Weiss & Marmar, 1997). N170 was examined as existing research identifies N170 as an early electrophysiological inflection sensitive to context.

Results: Analysis revealed that as overall PTG and Posttraumatic Growth Inventory subfactor "appreciation of life" increased, participant pupil dilations also increased, and participants were more likely to gaze first and dwell for longer on positively valenced images. There was no association between N170 and PTG. However, increased PTSD symptoms were associated with a larger N170 responsivity to negatively valenced images.

Conclusion: Eye-tracking findings offer novel physiological evidence of the salience of positive imagery for people with greater PTG. Larger N170 responses to negative images may offer a physiological marker of the pronounced threat recognition present in people with increased PTSD symptom severity. The propensity for individuals with more PTG to focus on positive, life-affirming images may underpin the more constructive worldviews and contemplative deliberate rumination, meaning-making, and constructive coping efforts associated with PTG development. (PsycInfo Database Record (c) 2025 APA, all rights reserved).

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来源期刊
CiteScore
11.20
自引率
3.20%
发文量
427
期刊介绍: Psychological Trauma: Theory, Research, Practice, and Policy publishes empirical research on the psychological effects of trauma. The journal is intended to be a forum for an interdisciplinary discussion on trauma, blending science, theory, practice, and policy. The journal publishes empirical research on a wide range of trauma-related topics, including: -Psychological treatments and effects -Promotion of education about effects of and treatment for trauma -Assessment and diagnosis of trauma -Pathophysiology of trauma reactions -Health services (delivery of services to trauma populations) -Epidemiological studies and risk factor studies -Neuroimaging studies -Trauma and cultural competence
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