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对情绪的注意偏差的特征相关神经基础:tDCS研究

Angela Marotta¹, Miriam Braga², Mirta Fiorio²

¹Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Via Felice Casorati, 43-37131, Verona, Italy. angela.marotta@univr.it.

Cognitive, affective & behavioral neuroscience

|August 3, 2023

概括

高负面影响 (NA) 的人对愤怒的面孔表现出偏见的注意力. 在前额叶皮层 (PFC) 上进行的跨直流刺激 (tDCS) 根据NA水平和刺激部位不同调节了这种注意偏差 (AB).

科学领域:

神经科学是一个神经科学.
认知心理学认知心理学
情感科学是一种情感科学.

背景情况:

负面情绪刺激显著影响注意力,特别是在具有高倾向性负面影响 (NA) 的个体中.
前额叶皮质 (PFC) 对于上下调节情绪处理至关重要.
了解NA的个体差异如何影响情绪注意力控制是很重要的.

研究的目的:

研究前额叶皮层 (PFC) 在对情绪刺激的注意偏差 (AB) 中的作用.
检查负面影响 (NA) 的个体差异如何影响PFC在情感注意力中的作用.
为了确定跨直流刺激 (tDCS) 对不同NA水平的个体在AB上的PFC的影响.

主要方法:

评估了高和低特征NA的个体对快乐,愤怒和悲伤的面孔的注意偏差 (AB).
在右或左PFC上应用模拟和阳极横直流刺激 (tDCS).
在不同的tDCS条件下和NA组之间比较了AB模式.

主要成果:

具有较高NA的个体在虚假tDCS下向愤怒的面孔显示AB,远离悲伤的面孔.
右阳道-tDCS超过PFC改变了高NA个体的AB,减少对愤怒的偏见,增加对悲伤面孔的偏见.
左阳极tDCS超过PFC废除了AB在较高的NA个体和诱导厌恶快乐的面孔在较低的NA个体.

结论:

特征NA极大地影响了对情绪刺激的注意偏差 (AB).
前额叶皮层 (PFC) 在情绪处理和注意力控制中起着不同的作用,这取决于个体的倾向性影响.
通过PFC进行的tDCS可以调节情绪注意偏差,影响因刺激地点和个体NA水平而异.

关键词:

注意力偏差是一种注意力偏差.情绪情绪情绪情绪负面影响影响影响负面影响.前额叶皮层前额叶皮层.tDCSCS 是一个很好的方法.

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