情感词语的语义和阻碍了面部表情在两个阶段的处理
Heliyon
|August 4, 2023
概括
情绪化的单词重复减缓了面部表情的处理,特别是最初对一致的表情. 这种影响后来扩大到包括不一致的表达,影响早期和晚期的大脑反应.
科学领域:
- 认知心理学 认知心理学
- 神经科学是一个神经科学.
- 心理语言学 心理语言学
背景情况:
- 语义和,即重复接触一个词暂时减少其意义的现象,已经得到了充分的证据.
- 语义和对处理情绪刺激,特别是面部表情的影响仍然不太了解.
- 调查潜在的神经机制情感词语语义和对于理解跨模态情感处理至关重要.
研究的目的:
- 研究情感词语语义和效应对面部表情处理的机制.
- 检查重复的情感词语如何影响判断面部表情的速度和神经相关性.
- 为了区分价值一致与价值不一致的面部表情在情感词和之后的效果.
主要方法:
- 参与者在观看情感 (哭泣,微笑) 或中性词语20秒后,判断了面部表情 (快乐,悲伤).
- 记录了行为数据 (反应时间) 和脑电图 (EEG) 测量,包括N170和LPC幅度.
- 为了评估长期影响和N170成分变化,进行了两项实验.
主要成果:
- 与基线相比,参与者在判断价值相一致的面部表情方面更慢.
- 对于价值对应表达式,观察到一个扩大和延长的N170元件,表明早期处理中断.
- 对于一致和不一致的条件都发现了减少的LPC振幅,这表明了后期处理调制.
结论:
- 情感词语的语义和效应最初阻碍了具有相同情感价值的面部表情的处理.
- 在以后的处理阶段,这种阻碍效应可能会扩展到具有相反情感价值的面部表情.
- 这些发现突出了面部表情感知上的情感语义和的价值特异性和时间依赖性.
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