Emotional Responses to Music: Shifts in Frontal Brain Asymmetry Mark Periods of Musical Change.
Emotional Responses to Music: Shifts in Frontal Brain Asymmetry Mark Periods of Musical Change.
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DOI：
10.3389/fpsyg.2017.02044
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发表时间：
2017
影响因子：
3.8
通讯作者：
Rickard NS
中科院分区：
文献类型：
--
作者：
Arjmand HA;Hohagen J;Paton B;Rickard NS
最近的研究表明，当听令人愉快的音乐时，大脑中与情感和奖励相关的区域的活动会增加。音乐特征强度和克里思的意外变化-从而增强了紧张和预期-被认为是音乐引起听众强烈情感反应的主要机制之一。然而，这些音乐特征是否与情绪反应的核心指标相一致，还没有得到广泛的研究。在这项研究中，经验丰富的情绪的主观和生理措施，连续从18名参与者（12名女性，6名男性; 18-38岁）谁听了四个刺激愉快的音乐，不愉快的音乐（不和谐的操纵自己的音乐），中性音乐，没有音乐，在一个平衡的顺序。每个刺激都呈现两次：第一次期间收集了脑电图（EEG）数据，而参与者在第二次呈现期间连续主观地对刺激进行评级。计算额叶和颞叶的额叶不对称（FA）指数，并在整个样本中确定了向左偏移的高峰期（表明向积极情感的转变）。还检查了音乐片段以定义关键音乐特征的时间开始。对情绪体验的主观报告在整个条件下平均确认参与者将他们的音乐选择评为非常积极的，混乱的音乐为消极的，中性音乐和沉默既不积极也不消极。在额叶电极对FC 3-FC 4中观察到FA的显著影响，并且在响应愉快的音乐时观察到左偏从基线的最大增加。这些结果与以前的研究结果一致。峰值FA反应在这个网站也被发现共同发生的关键音乐事件有关的变化，例如，引入一个新的主题，或仪器的变化，或在低层次的声学因素，如音高，动态或纹理的变化。这些研究结果提供了实证支持的建议，基本的音乐功能的变化是一个基本的触发情绪反应的听众。
Recent studies have demonstrated increased activity in brain regions associated with emotion and reward when listening to pleasurable music. Unexpected change in musical features intensity and tempo – and thereby enhanced tension and anticipation – is proposed to be one of the primary mechanisms by which music induces a strong emotional response in listeners. Whether such musical features coincide with central measures of emotional response has not, however, been extensively examined. In this study, subjective and physiological measures of experienced emotion were obtained continuously from 18 participants (12 females, 6 males; 18–38 years) who listened to four stimuli—pleasant music, unpleasant music (dissonant manipulations of their own music), neutral music, and no music, in a counter-balanced order. Each stimulus was presented twice: electroencephalograph (EEG) data were collected during the first, while participants continuously subjectively rated the stimuli during the second presentation. Frontal asymmetry (FA) indices from frontal and temporal sites were calculated, and peak periods of bias toward the left (indicating a shift toward positive affect) were identified across the sample. The music pieces were also examined to define the temporal onset of key musical features. Subjective reports of emotional experience averaged across the condition confirmed participants rated their music selection as very positive, the scrambled music as negative, and the neutral music and silence as neither positive nor negative. Significant effects in FA were observed in the frontal electrode pair FC3–FC4, and the greatest increase in left bias from baseline was observed in response to pleasurable music. These results are consistent with findings from previous research. Peak FA responses at this site were also found to co-occur with key musical events relating to change, for instance, the introduction of a new motif, or an instrument change, or a change in low level acoustic factors such as pitch, dynamics or texture. These findings provide empirical support for the proposal that change in basic musical features is a fundamental trigger of emotional responses in listeners.
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