利用时空主成分分析对焦虑成人注意偏倚的ERP成分进行初步研究。

IF 0.9 4区 心理学 Q4 NEUROSCIENCES
Journal of Psychophysiology Pub Date : 2021-10-01 Epub Date: 2021-02-23 DOI:10.1027/0269-8803/a000275
Resh S Gupta, Autumn Kujawa, David R Vago
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引用次数: 7

摘要

威胁相关的注意偏差被认为有助于焦虑症的发展和维持。使用事件相关电位(ERP)的点探测研究表明,在焦虑人群中,一些早期ERP成分受到威胁和情绪刺激的调节,这表明在处理的早期阶段,对威胁和情绪的注意分配得到了加强。然而,在这些研究中选择的ERP组件进行检查和分析差异很大,并且仍然不一致。本研究采用时空主成分分析(PCA)系统地识别了焦虑成人在点探针任务中面对对线索和探针所引发的ERP成分。对情绪敏感的线索锁定成分包括对快乐和愤怒的面孔线索增强的早期枕部C1成分,以及对快乐和愤怒的面孔线索增强的早期顶叶-枕部P1成分。对一致性敏感的探针锁定成分包括顶枕P2成分,对于不一致探针(探针取代中性面孔)和一致探针(探针取代情绪化面孔)增强。二分相关表明,在ERP波形中可靠地测量了pca衍生峰周围的平均值。这些结果突出了注意偏倚研究中有希望的神经生理标记,可以扩展到比较焦虑组和健康组的设计中。本文还介绍了一项二次探索性PCA分析的结果,该分析调查了情绪面部位置的影响,并分析了行为反应时间数据。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

A Preliminary Investigation of ERP Components of Attentional Bias in Anxious Adults using Temporospatial Principal Component Analysis.

A Preliminary Investigation of ERP Components of Attentional Bias in Anxious Adults using Temporospatial Principal Component Analysis.

Threat-related attention bias is thought to contribute to the development and maintenance of anxiety disorders. Dot-probe studies using event-related potentials (ERPs) have indicated that several early ERP components are modulated by threatening and emotional stimuli in anxious populations, suggesting enhanced allocation of attention to threat and emotion at earlier stages of processing. However, ERP components selected for examination and analysis in these studies vary widely and remain inconsistent. The present study used temporospatial principal component analysis (PCA) to systematically identify ERP components elicited to face pair cues and probes in a dot-probe task in anxious adults. Cue-locked components sensitive to emotion included an early occipital C1 component enhanced for happy versus angry face pair cues and an early parieto-occipital P1 component enhanced for happy versus angry face pair cues. Probe-locked components sensitive to congruency included a parieto-occipital P2 component enhanced for incongruent probes (probes replacing neutral faces) versus congruent probes (probes replacing emotional faces). Split-half correlations indicated that the mean value around the PCA-derived peaks were reliably measured in the ERP waveforms. These results highlight promising neurophysiological markers for attentional bias research that can be extended to designs comparing anxious and healthy comparison groups. Results from a secondary exploratory PCA analysis investigating the effects of emotional face position and analyses on behavioral reaction time data are also presented.

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来源期刊
Journal of Psychophysiology
Journal of Psychophysiology 医学-神经科学
CiteScore
2.60
自引率
7.70%
发文量
25
审稿时长
>12 weeks
期刊介绍: The Journal of Psychophysiology is an international periodical that presents original research in all fields employing psychophysiological measures on human subjects. Contributions are published from psychology, physiology, clinical psychology, psychiatry, neurosciences, and pharmacology. Communications on new psychophysiological methods are presented as well. Space is also allocated for letters to the editor and book reviews. Occasional special issues are devoted to important current issues in psychophysiology.
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