人間における音楽,心血管,脳リズム間のダイナミックな相互作用
Luciano Bernardi1, Cesare Porta, Gaia Casucci
1Department of Internal Medicine, Pavia University and IRCCS S. Matteo, Pavia, Italy. lbern1ps@unipv.it
Circulation
|July 2, 2009
まとめ
音楽の強調とリズムは,生理学的反応に一貫して影響し,自律神経系の活動を音楽のヒントと同期させます. これは,音楽がダイナミックな音楽の段落の間に自律的興奮を介して感情を喚起することを示唆しています.
科学分野:
- 精神生理学 精神生理学とは
- 音楽の神経科学について
- 心臓呼吸器の生理学について
背景:
- 音楽の知覚は主観的なものだと考えられることが多い.
- 以前の研究によると,より速い音楽のテンポは,好みに関係なく,心肺動脈の変数を増加させるという.
- この研究では,音楽の重みとリズムが平行な生理学的反応を誘発できるかどうかを調査した.
研究 の 目的:
- 変数的な重みとリズム的なフレーズを持つ音楽が一貫した心血管と呼吸器の反応を誘発するかどうかを判断する.
- これらの生理学的変化が音楽の構造とプロフィールを反映しているかどうかを評価する.
- 音楽と自律神経系との間の同期性を探求する.
主な方法:
- 24人の健康な若年成人 (12人のミュージシャン,12人の非ミュージシャン) が参加しました.
- 被験者は,静かさとともに,漸進的な半月,均一な強調,またはリズム的なフレーズで音楽を聴きました.
- 心拍数,呼吸,血圧,中脳動脈の流れ速度,皮膚の血管運動を含む生理学的変数は,継続的に記録されました.
主要な成果:
- ボーカルとオーケストラの半月音は,心臓血管と呼吸器系の信号,特に血圧と皮膚血管収縮と有意に相関していました.
- 均一な重点を置いた音楽は,皮膚の血管拡張を引き起こし,血圧を下げました.
- 10秒間隔のリズムフレーズは,心血管の自律的変数を同期した;ミュージシャンと非ミュージシャンの間で違いは観察されなかった.
結論:
- 生理学的変数は,一貫して音楽の重点とリズムパターンを追跡します.
- 自律的反応は,音楽的刺激と同期し,直接的なつながりを示す.
- 音楽は,クレセンドーやリズムフレーズのようなダイナミックな音楽要素の間に自律的興奮を調節することによって,感情を伝達することができる.
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