"Lacking warmth": Alexithymia trait is related to warm-specific thermal somatosensory processing.
"Lacking warmth": Alexithymia trait is related to warm-specific thermal somatosensory processing.
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DOI：
10.1016/j.biopsycho.2017.07.012
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发表时间：
2017-09
影响因子：
2.6
通讯作者：
Haggard P
中科院分区：
文献类型：
--
作者：
Borhani K;Làdavas E;Fotopoulou A;Haggard P
述情障碍分数与定量感官测试组的分数相关。两项独立的研究发现述情障碍的低水平躯体感觉发生了改变。高述情障碍参与者对温暖的敏感性表现出特定的降低。述情障碍是一种涉及情绪处理缺陷的人格特质。人格结构已被广泛验证，但潜在的神经和生理系统仍然存在争议。一种理论认为，低水平的体感机制充当情绪的体细胞标记，支撑述情障碍的认知和情感障碍。在两个单独的样本（总 N = 100）中，我们使用已建立的定量感官测试（QST）电池来探测体感的多种神经生理学子模式，并研究它们与广泛使用的多伦多述情障碍量表（TAS-20）的关联。实验一发现，与述情障碍得分较低的人相比，述情障碍得分较高的人对温暖的敏感性降低，但其他体感子模式没有缺陷。实验二使用热检测阈值与 TAS-20 分数之间的全样本相关性在一组新参与者中复制了这一结果。我们讨论低水平热感受功能与情绪认知处理之间的关系。
Alexithymia scores were related to scores on a quantitative sensory testing battery. Two separate studies found altered low-level somatosensation in alexithymia. High alexithymic participants showed specific reduction in sensitivity to warm temperature. Alexithymia is a personality trait involving deficits in emotional processing. The personality construct has been extensively validated, but the underlying neural and physiological systems remain controversial. One theory suggests that low-level somatosensory mechanisms act as somatic markers of emotion, underpinning cognitive and affective impairments in alexithymia. In two separate samples (total N = 100), we used an established Quantitative Sensory Testing (QST) battery to probe multiple neurophysiological submodalities of somatosensation, and investigated their associations with the widely-used Toronto Alexithymia Scale (TAS-20). Experiment one found reduced sensitivity to warmth in people with higher alexithymia scores, compared to individuals with lower scores, without deficits in other somatosensory submodalities. Experiment two replicated this result in a new group of participants using a full-sample correlation between threshold for warm detection and TAS-20 scores. We discuss the relations between low-level thermoceptive function and cognitive processing of emotion.
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影响因子：
4.7
作者：
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通讯作者：
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影响因子：
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影响因子：
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作者：
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DOI：
10.1098/rstb.1996.0125
发表时间：
1996-10-29
影响因子：
6.3
作者：
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通讯作者：
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