なぜ音楽を聴くと鳥肌が立つのか?【データストーリーテリング】
なぜ音楽は鳥肌を立てるのか ──空気の振動にすぎない音の並びが、なぜ脳の報酬回路をハイジャックできるのか? 2011年、カナダの研究室で衝撃的な事実が判明しました。音楽で鳥肌が立つ瞬間、脳内ではコカインや性行為と同じドーパミンが放出されていた。しかもサビが始まる「数秒前」から。人口の半分はこの現象を経験したことがない。感じる人と感じない人の違いは、脳の「配線の太さ」にあった。さらに、AIが作った音楽でも鳥肌は立つ――作り手が人間かどうかは、脳には無関係だった。 脳科学・進化心理学・音楽心理学の論文13本をもとに、徹底的に解剖しました。 ---------------------------- ▼タイムスタンプ 00:00 - イントロ 01:18 - Chapter 1:あなたの脳は、次の音を当てようとしている 03:25 - Chapter 2:聴覚のチーズケーキ 05:07 - Chapter 3:感じる脳、感じない脳 06:47 - Chapter 4:悲しい曲はなぜ気持ちいいのか 09:03 - Chapter 5:鳥肌がまだ立つ理由 ---------------------------- ▼参考文献 [1] Blood, A.J. & Zatorre, R.J. (2001). "Intensely pleasurable responses to music correlate with activity in brain regions implicated in reward and emotion." PNAS, 98(20), 11818-11823. [2] Salimpoor, V.N., Benovoy, M., Larcher, K., Dagher, A., & Zatorre, R.J. (2011). "Anatomically distinct dopamine release during anticipation and experience of peak emotion to music." Nature Neuroscience, 14, 257-262. [3] Nusbaum, E.C. & Silvia, P.J. (2011). "Shivers and Timbres: Personality and the Experience of Chills from Music." Social Psychological and Personality Science, 2(2), 199-204. [4] Colver, M.C. & El-Alayli, A. (2016). "Getting aesthetic chills from music: The connection between openness to experience and frisson." Psychology of Music, 44(3), 413-427. [5] Martinez-Molina, N., Mas-Herrero, E., et al. (2016). "Neural correlates of specific musical anhedonia." PNAS, 113(46), E7337-E7345. [6] Huron, D. (2006). Sweet Anticipation: Music and the Psychology of Expectation. MIT Press. [7] Huron, D. (2011). "Why is sad music pleasurable? A possible role for prolactin." Musicae Scientiae, 15(2), 146-158. [8] de Fleurian, R. & Pearce, M.T. (2021). "Chills in Music: A Systematic Review." Psychological Bulletin, 147(9), 890-920. [9] Ladinig, O., et al. (2021). "Enjoying sad music: A test of the prolactin theory." Musicae Scientiae, 25(1), 93-107. [10] Kreutz, G., et al. (2004). "Effects of Choir Singing or Listening on Secretory Immunoglobulin A, Cortisol, and Emotional State." Journal of Behavioral Medicine, 27(6), 623-635. [11] Pinker, S. (1997). How the Mind Works. W.W. Norton. [12] Miller, G. (2000). "Evolution of human music through sexual selection." In N.L. Wallin et al. (Eds.), The Origins of Music. MIT Press. [13] PLOS One (2025). "Emotional responses to AI-generated vs. human-composed music." --------------------------------- ▼音源素材 効果音ラボ https://soundeffect-lab.info/ DOVA-SYNDROME https://dova-s.jp/ #フリッソン #音楽 #鳥肌 #脳科学 #ドーパミン #進化心理学 #データサイエンス #考察

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