From a baby's cry to a piece of music, we perceive emotion from our auditory environment every day. Many theories bring forward the concept of common neural substrates for the perception of vocal and musical emotions. It has been proposed that, for us to perceive emotions, music recruits emotional circuits that evolved for the processing of biologically relevant vocalizations (e.g., screams, laughs). Although some studies have found similarities between voice and instrumental music in terms of acoustic cues and neural correlates, little is known about their processing timecourse. To further understand how vocal and instrumental emotional sounds are perceived, we used EEG to compare the neural processing timecourse of both stimuli type expressed with a varying degree of complexity (vocal/musical affect bursts and emotion-embedded speech/music). Vocal stimuli in general, as well as musical/vocal bursts, were associated with a more concise sensory trace at initial stages of analysis (smaller N1), although vocal bursts had shorter latencies than the musical ones. As for the P2 - vocal affect bursts and Emotion-Embedded Musical stimuli were associated with earlier P2s. These results support the idea that emotional vocal stimuli are differentiated early from other sources and provide insight into the common neurobiological underpinnings of auditory emotions.

中文翻译：

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声音和音乐情感的时间解码：相同的代码，不同的时间进程？

从婴儿的哭声到一首音乐，我们每天都能从听觉环境中感知情绪。许多理论提出了用于感知声音和音乐情绪的共同神经基质的概念。有人提出，为了让我们感知情绪，音乐会招募情绪回路，这些回路是为处理与生物相关的发声（例如尖叫、笑声）而进化的。尽管一些研究发现声音和器乐在声学线索和神经关联方面有相似之处，但对它们的处理时间进程知之甚少。为了进一步了解人声和器乐情绪声音是如何被感知的，我们使用 EEG 来比较以不同复杂程度表达的两种刺激类型的神经处理时间过程（人声/音乐影响爆发和情绪嵌入的语音/音乐）。在分析的初始阶段（较小的 N1），一般的声音刺激以及音乐/声音爆发与更简洁的感官轨迹相关联，尽管声音爆发的延迟比音乐爆发更短。至于 P2 - 声音影响爆发和情绪嵌入的音乐刺激与早期的 P2 相关。这些结果支持了情绪声音刺激与其他来源的早期区别的观点，并提供了对听觉情绪的常见神经生物学基础的深入了解。