Massullo Chiara, Imperatori Claudio, De Vico Fallani Fabrizio, Ardito Rita B, Adenzato Mauro, Palmiero Luigia, Carbone Giuseppe Alessio, Farina Benedetto
Department of Education, Roma Tre University, Rome, Italy.
Cognitive and Clinical Psychology Laboratory, Department of Human Sciences, European University of Rome, Rome, Italy.
Sci Rep. 2022 Mar 18;12(1):4725. doi: 10.1038/s41598-022-08685-0.
The main aim of the study was to examine how brain network metrics change after retrieval of attachment memories in individuals with unresolved/disorganized (U/D) attachment-related state of mind and those with organized/resolved (O/R) state of mind. We focused on three main network metrics associated with integration and segregation: global (E) efficiency for the first function, local (E) efficiency and modularity for the second. We also examined assortativity and centrality metrics. Electroencephalography (EEG) recordings were performed before and after the Adult Attachment Interview (AAI) in a sample of 50 individuals previously assessed for parenting quality. Functional connectivity matrices were constructed by means of the exact Low-Resolution Electromagnetic Tomography (eLORETA) software and then imported into MATLAB to compute brain network metrics. Compared to individuals with O/R attachment-related state of mind, those with U/D show a significant decrease in beta E after AAI. No statistically significant difference among groups emerged in E and modularity metrics after AAI, neither in assortativity nor in betweenness centrality. These results may help to better understand the neurophysiological patterns underlying the disintegrative effects of retrieving traumatic attachment memories in individuals with disorganized state of mind in relation to attachment.
该研究的主要目的是考察在具有未解决/混乱（U/D）依恋相关心理状态的个体以及具有有序/解决（O/R）心理状态的个体中，依恋记忆提取后大脑网络指标如何变化。我们聚焦于与整合和分离相关的三个主要网络指标：第一个功能的全局（E）效率，第二个功能的局部（E）效率和模块化。我们还考察了配适度和中心性指标。在对50名先前已评估养育质量的个体样本中，在成人依恋访谈（AAI）前后进行脑电图（EEG）记录。通过精确低分辨率电磁断层扫描（eLORETA）软件构建功能连接矩阵，然后导入MATLAB以计算大脑网络指标。与具有O/R依恋相关心理状态的个体相比，具有U/D的个体在AAI后β E显著降低。AAI后，在E和模块化指标方面，无论是在配适度还是中介中心性上，各组之间均未出现统计学上的显著差异。这些结果可能有助于更好地理解与依恋相关的混乱心理状态个体中，提取创伤性依恋记忆的瓦解效应背后的神经生理模式。
