Grossmann Tobias, Striano Tricia, Friederici Angela D
Department of Neuropsychology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany.
Neuroreport. 2005 Nov 7;16(16):1825-8. doi: 10.1097/01.wnr.0000185964.34336.b1.
In the current study, we examined 7-month-old infants' processing of emotional prosody using event-related brain potentials. Infants heard semantically neutral words that were spoken with either a happy, angry, or neutral voice. The event-related brain potential data revealed that angry prosody elicited a more negative response in infants' event-related potentials than did happy or neutral prosody, suggesting greater allocation of attention to angry prosody. A positive slow wave was elicited by angry and happy prosody over temporal electrode sites. This indicates an enhanced sensory processing of the emotionally loaded stimuli (happy and angry). The current findings demonstrate that very early in development, the human brain detects emotionally loaded words and shows differential attentional responses depending on their emotional valence.
在当前的研究中，我们使用事件相关脑电位来检测7个月大婴儿对情感韵律的处理。婴儿听到用开心、愤怒或中性的声音说出的语义中性的词语。事件相关脑电位数据显示，与开心或中性韵律相比，愤怒韵律在婴儿的事件相关电位中引发了更消极的反应，这表明对愤怒韵律分配了更多的注意力。愤怒和开心韵律在颞部电极部位引发了一个正慢波。这表明对带有情感的刺激（开心和愤怒）的感觉处理增强。当前的研究结果表明，在发育的早期阶段，人类大脑就能检测到带有情感的词语，并根据其情感效价表现出不同的注意力反应。
