Time-Course EEG Spectrum Evidence for Music Key Perception and Emotional Effects
Being one of the most direct expressions of human feelings, music becomes the best tool for investigating the relationship between emotion and cognition. This paper investigated the long-term spectrum evidence of electroencephalogram (EEG) activities elicited by music keys. The EEG signals were recorded in 21 healthy adults during the entire process of music listening. There were two major music episodes and two minor ones, each lasted two minutes. Considering the spectral characteristics: (1) During two minutes of music listening, the alpha band activities recovered rapidly, which were more obvious under major music; (2) while, in the high-frequency gamma band, the activities declined gradually which were more obvious under minor music. Taken together, these results give clear evidence for the time-course difference in the music key perception.
KeywordsTime-course analysis Music key perception Electroencephalogram Affective computing Brain-computer interaction
Our thanks to supports from the National Natural Science Foundation of China (61171186, 61271345, 61671187), Fundamental Research Project of Shenzhen (JCYJ20150929143955341), Key Laboratory Opening Funding of MOE-Microsoft Key Laboratory of Natural Language Processing and Speech (HIT.KLOF.20150xx, HIT.KLOF.20160xx), and the Fundamental Research Funds for the Central Universities (HIT.NSRIF.2012047). The authors are grateful for the anonymous reviewers who made constructive comments.
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