Bidelman Gavin M, Krishnan Ananthanarayan
Department of Speech, Language, & Hearing Sciences, Purdue University, West Lafayette, Indiana, USA.
Neuroreport. 2011 Mar 30;22(5):212-6. doi: 10.1097/WNR.0b013e328344a689.
Certain chords are preferred by listeners behaviorally and also occur with higher regularity in musical composition. Event-related potentials index the perceived consonance (i.e., pleasantness) of musical pitch relationships providing a cortical neural correlate for such behavioral preferences. Here, we show correlates of these harmonic preferences exist at subcortical stages of audition. Brainstem frequency-following responses were measured in response to four prototypical musical triads. Pitch salience computed from frequency-following responses correctly predicted the ordering of triadic harmony stipulated by music theory (i.e., major >minor >>diminished >augmented). Moreover, neural response magnitudes showed high correspondence with listeners' perceptual ratings of the same chords. Results suggest that preattentive stages of pitch processing may contribute to perceptual judgments of musical harmony.
听众在行为上更喜欢某些和弦，并且这些和弦在音乐创作中出现的频率也更高。事件相关电位可反映音乐音高关系的感知和谐度（即愉悦度），为这种行为偏好提供了皮层神经关联。在这里，我们表明这些和声偏好在听觉的皮层下阶段就已存在。我们测量了脑干频率跟随反应，以响应四个典型的音乐三和弦。根据频率跟随反应计算出的音高显著性正确地预测了音乐理论规定的三和弦和声顺序（即大调＞小调＞＞减调＞增调）。此外，神经反应幅度与听众对相同和弦的感知评分高度一致。结果表明，音高处理的前注意阶段可能有助于对音乐和声的感知判断。
