The Relationship Between Valence, Task Difficulty, and the COMT Val 158 Met Polymorphism in Disengagement Processes

The Relationship Between Valence, Task Difficulty, and the COMT Val 158 Met Polymorphism in Disengagement Processes
复制标题

脱离过程中效价、任务难度和 COMT Val 158 Met 多态性之间的关系

DOI:
10.1027/0269-8803/a000075
复制
发表时间:
2012
影响因子:
1.3
通讯作者:
Herrmann
Herrmann
中科院分区:
心理学4区
文献类型:
--
作者:
Gschwendtner;Mühlberger;Sommer;Kübler;Herrmann

文献摘要

参考文献

被引文献

相似文献

儿茶酚-O-甲基转移酶(COMT)瓦尔158 Met多态性(rs 4680)调节前额叶皮质中的多巴胺降解。已经表明,Met等位基因与对负刺激的反应性增加相关。关于紧张性-阶段性多巴胺模型,假设这种对负性刺激的反应性增加源自从负性刺激的脱离不足。因此,本研究的目的是调查这种增加的反应是否反映在长期脱离负面图片。我们使用了一种新的强迫空间脱离任务结合眼动追踪。这种模式允许不同的任务难度。有趣的是,与我们的假设相反,我们发现与杂合子参与者相比,纯合子瓦尔等位基因携带者对阴性图片的脱离延迟增加。这种效应只在要求较少认知资源的任务条件(正面条件)中出现。我们认为COMT对情绪加工的影响是任务特异性的,因此可以发生杂种优势效应。
The catechol-O-methyltransferase (COMT) Val 158 Met polymorphism (rs4680) moderates dopamine degradation in the prefrontal cortex. It has been shown that the Met allele is associated with an increased reactivity to negative stimuli. With regard to the tonic-phasic dopamine model it is hypothesized that this increased reactivity to negative stimuli derives from deficient disengagement from negative stimuli. The aim of this study was therefore to investigate whether this increased reactivity is reflected in prolonged disengagement from negative pictures. We used a novel forced spatial disengagement task in combination with eye tracking. This paradigm allows for varying task difficulty. Interestingly, contrary to our hypothesis, we found increased disengagement latencies for negative pictures in homozygous Val allele carriers compared to heterozygous participants. This effect was only seen in task conditions demanding less cognitive resources (prosaccade condition). We suggest that the COMT effect on emotional processing is task-specific and therefore heterosis effects can occur.
高自我强度和低自我强度受试者对反复引发焦虑的场景的自主反应。
DOI: --
发表时间: 1975
影响因子: 4.6
作者:
P. Boudewyns;D. Levis
通讯作者: D. Levis
实验者的种族、指导和比较人群对黑人受试者报告的焦虑水平的影响。
DOI: --
发表时间: 1967
期刊:
影响因子: --
作者:
S. Baratz
通讯作者: S. Baratz
培训黑人对混血团队合作解决问题的影响。
DOI: --
发表时间: 1962
期刊: Journal of Abnormal & Social Psychology
影响因子: --
作者:
I. Katz;M. Cohen
通讯作者: M. Cohen
DOI: 10.1093/oxfordjournals.aje.a114117
发表时间: 1985-01-01
影响因子: 5
作者:
LEVINSON, S;LIU, K;BERKSON, D
通讯作者: BERKSON, D
区分制度认同与学术目标追求:种族认同和基于种族的拒绝敏感性的互动效应。
DOI: --
发表时间: 2008
影响因子: 7.6
作者:
Rodolfo Mendoza;J. Pietrzak;G. Downey
通讯作者: G. Downey