神经重用假说的汉语情绪词汇加工证据

神经重用假说认为对词的情绪效应可以不经语义形成而先行产生, 这更有助于人类适应环境。为了检验这一假说, 设计脑电实验和行为实验, 记录被试加工汉语厌恶情绪词和中性词的特征。结果发现, 170 ms左右厌恶词与中性词的ERPs发生分离, 且在枕部出现情绪刺激视觉注意关联的EPN; 厌恶词与中性词N400差异波溯源定位于脑岛附近, 其最大激活点时间窗口开始于380 ms。这表明在情绪词汇的语义分析之前就出现了情绪效应, 结果支持了神经重用假说。

Evidence for neural re-use hypothesis from the processing of Chinese emotional words

The two main theoretical views of emotional word processing are conflicting. According to standard psycholinguistics, emotions are elicited within the reading network itself after semantic activation. However, neural reuse theories suggest that emotional words can be directly processed by the brain region that is activated in emotional information processing, similar to how emotional images, smell, and faces are processed. This means that emotional effects to words occur before semantics, which benefits human adaptability. The processing of emotional words in phonetic characters supports the view of neural reuse, but the processing of emotional words in ideographic texts has no evidence. An event-related potential experiment and a behavioral experiment were conducted to explore the processing of emotional information while reading at an implicit level.