Swart Marte, Kortekaas Rudie, Aleman André
NeuroImaging Center, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
PLoS One. 2009 Jun 3;4(6):e5751. doi: 10.1371/journal.pone.0005751.
Alexithymia, or "no words for feelings", is a personality trait which is associated with difficulties in emotion recognition and regulation. It is unknown whether this deficit is due primarily to regulation, perception, or mentalizing of emotions. In order to shed light on the core deficit, we tested our subjects on a wide range of emotional tasks. We expected the high alexithymics to underperform on all tasks.
Two groups of healthy individuals, high and low scoring on the cognitive component of the Bermond-Vorst Alexithymia Questionnaire, completed questionnaires of emotion regulation and performed several emotion processing tasks including a micro expression recognition task, recognition of emotional prosody and semantics in spoken sentences, an emotional and identity learning task and a conflicting beliefs and emotions task (emotional mentalizing).
The two groups differed on the Emotion Regulation Questionnaire, Berkeley Expressivity Questionnaire and Empathy Quotient. Specifically, the Emotion Regulation Quotient showed that alexithymic individuals used more suppressive and less reappraisal strategies. On the behavioral tasks, as expected, alexithymics performed worse on recognition of micro expressions and emotional mentalizing. Surprisingly, groups did not differ on tasks of emotional semantics and prosody and associative emotional-learning.
Individuals scoring high on the cognitive component of alexithymia are more prone to suppressive emotion regulation strategies rather than reappraisal strategies. Regarding emotional information processing, alexithymia is associated with reduced performance on measures of early processing as well as higher order mentalizing. However, difficulties in the processing of emotional language were not a core deficit in our alexithymic group.
述情障碍,即“无法用言语表达情感”,是一种人格特质,与情绪识别和调节困难相关。目前尚不清楚这种缺陷主要是由于情绪调节、感知还是心理化。为了阐明核心缺陷,我们在一系列情绪任务中对受试者进行了测试。我们预计高述情障碍者在所有任务中的表现都会较差。
两组健康个体,在伯蒙德 - 沃斯特述情障碍问卷的认知成分上得分高和低,完成了情绪调节问卷,并执行了多项情绪处理任务,包括微表情识别任务、口语句子中情绪韵律和语义的识别、情绪与身份学习任务以及冲突信念与情绪任务(情绪心理化)。
两组在情绪调节问卷、伯克利表现力问卷和共情商数上存在差异。具体而言,情绪调节商数表明述情障碍个体更多地使用抑制策略,而较少使用重新评价策略。在行为任务中,正如预期的那样,述情障碍者在微表情识别和情绪心理化方面表现较差。令人惊讶的是,两组在情绪语义和韵律以及联想性情绪学习任务上没有差异。
在述情障碍认知成分上得分高的个体更容易采用抑制性情绪调节策略而非重新评价策略。关于情绪信息处理,述情障碍与早期处理测量以及高阶心理化方面的表现降低有关。然而,情绪语言处理困难并非我们述情障碍组的核心缺陷。