Differential modulation of valence and arousal in high-alexithymic and low-alexithymic individuals

被引：17

作者：

Heinzel, Alexander ^{[1
]}

Schaefer, Ralf ^{[2
]}

Mueller, Hans-Wilhelm

Schieffer, Andre

Ingenhag, Ariane

Northoff, Georg ^{[3
]}

Franz, Matthias ^{[2
]}

Hautzel, Hubertus

机构：

[1] Univ Dusseldorf, Forschungszentrum Julich, Dept Nucl Med, D-52425 Julich, Germany

[2] Univ Dusseldorf, Clin Inst Psychosomat Med & Psychotherapy, D-52425 Julich, Germany

[3] Univ Ottawa, Ottawa, ON K1N 6N5, Canada

来源：

NEUROREPORT | 2010年 / 21卷 / 15期

关键词：

alexithymia; amygdala; anterior cingulate; emotion; fMRI; insula; Toronto Alexithymia Scale; NEURAL REPRESENTATION; EMOTION REGULATION; PREFRONTAL CORTEX; FMRI EXPERIMENTS; DIMENSIONS; ACTIVATION; FEELINGS;

D O I：

10.1097/WNR.0b013e32833f38e0

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

High-alexithymic individuals are characterized by an impaired ability to identify and communicate emotions whereas low-alexithymic individuals have a wide-ranging ability to deal with emotions. This study examined the hypothesis that valence and arousal modifications of emotional stimuli differentially modulate cortical regions in high-alexithymic and low-alexithymic individuals. To this end, 28 high-alexithymic and 25 low-alexithymic individuals were investigated with event-related fMRI using visual emotional stimuli. We found differential neural activations in the dorsal anterior cingulate, the insula and the amygdala. We suggest that these differences may account for the impaired ability of high-alexithymic individuals to appropriately handle emotional stimuli. NeuroReport 21:998-1002 (C) 2010 Wolters Kluwer Health vertical bar Lippincott Williams & Wilkins.

引用

页码：998 / 1002

页数：5

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