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Structure of the alexithymic brain: A parametric coordinate-based meta-analysis
Neuroscience & Biobehavioral Reviews ( IF 8.2 ) Pub Date : 2018-01-31 , DOI: 10.1016/j.neubiorev.2018.01.004
Pengfei Xu , Esther M. Opmeer , Marie-José van Tol , Katharina S. Goerlich , André Aleman

Alexithymia refers to deficiencies in identifying and expressing emotions. This might be related to changes in structural brain volumes, but its neuroanatomical basis remains uncertain as studies have shown heterogeneous findings. Therefore, we conducted a parametric coordinate-based meta-analysis. We identified seventeen structural neuroimaging studies (including a total of 2586 individuals with different levels of alexithymia) investigating the association between gray matter volume and alexithymia. Volumes of the left insula, left amygdala, orbital frontal cortex and striatum were consistently smaller in people with high levels of alexithymia. These areas are important for emotion perception and emotional experience. Smaller volumes in these areas might lead to deficiencies in appropriately identifying and expressing emotions. These findings provide the first quantitative integration of results pertaining to the structural neuroanatomical basis of alexithymia.



中文翻译:

无脑运动脑的结构:基于参数坐标的荟萃分析

Alexithymia指的是识别和表达情绪的缺陷。这可能与结构性大脑体积的变化有关,但由于研究显示了不同的发现,其神经解剖学基础仍然不确定。因此,我们进行了基于参数坐标的荟萃分析。我们确定了十七项结构神经影像学研究(包括总共2586名不同程度的无力症患者),研究了灰质量与无力症患者之间的关系。患有运动障碍的人的左岛,左杏仁核,眶额叶皮层和纹状体的体积始终较小。这些区域对于情感感知和情感体验很重要。在这些区域中较小的数量可能会导致在正确识别和表达情感方面的不足。

更新日期:2018-01-31
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