What Event-Related Brain Potentials Tell Us About Tonal Expectancy in Music

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  • 音楽における調性的期待：事象関連脳電位からわかること
  • オンガク　ニ　オケル　チョウセイテキ　キタイ　ジショウ　カンレン　ノウ　デンイ　カラ　ワカル　コト

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Abstract

Mental representations of musical regularities such as tonal regularities (e.g., musical scale and rule of functional harmony in Western tonal music) are thought to be sustained representations that apply beyond specific tunes. Behavioral and neuroscience studies have shown that the tonal representations cause schematic expectancies in listeners. Event-related brain potentials (ERPs) with high temporal resolutions are used to measure differences between violations and non-violations of expectancies as neural correlates of tonal expectancy. This paper reviews ERP studies and discusses the information processing content reflected in ERPs (e.g., early right anterior negativity: ERAN; mismatch negativity: MMN). Future directions and remaining issues on the use of electrophysiological measures to understand tonal expectancy processing have also been discussed.

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