Z 情绪词汇加工大脑左右偏侧化认知差异的研究
Research on Cognitive Differences on Cerebral Left and Right Cognition in the Processing of Emotional Vocabulary

作者: 陈湛愔 , 高俊杰 , 张光妍 , 何国林 , 许雯蔚 , 何良玉 , 林海峰 , 梁余航 , 陈奕奕 :湛江中心人民医院,广东 湛江; 周 曙 :南方医科大学南方医院神经内科,广东 广州;

关键词: 事件相关电位情绪词汇认知加工统计参数映像Event-Related Potentials Emotional Vocabulary Cognitive Processing Statistical Parametric Image

摘要:
目的:应用多通道ERPs分析技术,探讨汉字情绪词汇加工脑功能偏侧化的神经机制。方法:应用不同情绪效价的情绪刺激图片对31位健康志愿者进行情绪效价五个水平情绪情绪脑电诱发电位的测试判别。观察受试者对五个情绪效价水平情绪词汇的情绪反应。结果:ERPs统计参数映像图(SPM)结果:极负和偏负性词汇在中晚期激活了双侧眶额、腹内侧前额、前扣带回和躯体感觉等广泛皮层,振幅高波幅大时域长,激活效应偏右侧皮层。中性词汇激活效应多在左侧皮层,频率小,振幅低;极正和偏正性词汇激活范围为双侧眶额、腹内侧前额、前扣带回和躯体感觉等广泛皮层,振幅、频率和时域较负性激活反应明显减弱,激活效应偏左。结论:不同效价情绪词汇加工提示负性情绪词汇加工激活效应偏右,而正性情绪词汇加工激活效应偏左,证实了大脑对情绪刺激的左右半球反应差异可能是基于加工偏差,这种功能模式的差异可能是记忆注意认知行为能力差异性的神经机制。

Abstract: Objective: To explore the neural mechanism of cerebral function deviation in the processing of emo-tional vocabulary for Chinese words with multi-channel ERPs analysis techniques. Methods: 31 sub-jects were required to complete the five levels of emotional valence emotions evoked EEG test po-tential discrimination with the different emotional valence of emotional stimuli picture emotions and to observe the emotional responses of the subjects to the five emotional valence levels. Results: ERPs statistical parametric mapping diagram (SPM) results: In the Middle and late stage, extremely negative and partial negative words were activated at the bilateral cortex widely of orbitofrontal and ventromedial prefrontal, anterior cingulate and somatosensory, high frequency wave, large am-plitude, long time, activation effect right. Neutral words activation affects more in the left cortex, low frequency, low amplitude; positive and partial positive words were activated the range for bilateral cortex widely of orbito-frontal and ventro-medial prefrontal, anterior cingulate and somatosensory, frequency. Compared with negative activation, the amplitude, frequency and time domain were ob-viously decreased, left cortex was significantly activated. Conclusion: Different emotional valence words processing prompts that negative emotional words processing to be activated effect in right cortex, and positive emotional words processing to be activated effect in left cortex. Speculated the response of brain on the emotional stimuli left-right hemispheric differences in is based on pro- cessing machining difference, the differences in the functional mode may is memory attention to specific neural mechanism of the difference between the cognitive ability.

文章引用: 陈湛愔 , 高俊杰 , 张光妍 , 何国林 , 周 曙 , 许雯蔚 , 何良玉 , 林海峰 , 梁余航 , 陈奕奕 (2016) Z 情绪词汇加工大脑左右偏侧化认知差异的研究。 心理学进展, 6, 290-298. doi: 10.12677/AP.2016.63038

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