Stochastic auditory noise enhances cardiac coherence evoked by slow-tempo music: preliminary findings

IF 2.7 3区医学 Q2 BEHAVIORAL SCIENCES

Physiology & Behavior Pub Date : 2026-02-01 Epub Date: 2025-11-20 DOI:10.1016/j.physbeh.2025.115181

Karen Alejandra Díaz-Lozano , Oscar Alexis Becerra-Casillas , Nayeli Huidobro , Joel Cervantes-L , David I Serrano-Garcia , Hugo Vélez-Pérez , Mario Treviño , Inmaculada Márquez , Braniff de la Torre-Valdovinos

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引用次数: 0

Abstract

Heart rate variability (HRV) coherence near 0.1 Hz has been proposed as a sensitive marker of autonomic regulation and stress resilience. Slow-tempo music has been associated with enhanced parasympathetic activity, and the stochastic resonance framework suggests that controlled noise may optimize weak physiological signals. This study examined whether embedding auditory noise into slow-tempo music could enhance HRV coherence.

Materials and Methods

Twelve healthy volunteers underwent electrocardiogram (ECG) and electroencephalogram (EEG) recordings while listening to slow-tempo instrumental music alone and with superimposed white noise at varying intensities. HRV coherence was quantified using spectral concentration around 0.1 Hz. Analyses compared music-only, zero noise (ZN), optimal noise (ON), and high noise (HN) conditions.

Results

Music alone progressively increased HRV coherence, with a tendency to stabilize around ∼1800 s. When music was combined with noise, HRV coherence showed a pattern consistent with an inverted-U: intermediate noise levels tended to produce higher coherence, whereas ZN and HN conditions were associated with reduced synchronization. Individual variability was evident, with each participant displaying a unique ON level. EEG results showed increased alpha activity, particularly in right-lateralized regions, consistent with relaxation states reported in the literature.

Conclusion

Embedding noise into slow-tempo music selectively amplified HRV coherence near 0.1 Hz, consistent with stochastic resonance. These findings suggest that noise-modulated music may serve as a low-cost, accessible complementary approach to strengthen autonomic regulation and stress regulation.

查看原文本刊更多论文

随机听觉噪音增强慢节奏音乐诱发的心脏相干性：初步发现。

心率变异性（HRV）一致性在0.1 Hz附近被认为是自主调节和应激恢复的敏感标志。慢节奏音乐与增强副交感神经活动有关，随机共振框架表明受控噪声可能优化弱生理信号。本研究考察了在慢节奏音乐中嵌入听觉噪音是否能增强HRV一致性。材料和方法：12名健康志愿者在单独听慢节奏器乐和不同强度叠加白噪声的情况下进行心电图和脑电图记录。利用0.1 Hz左右的光谱浓度定量HRV相干性。分析比较了纯音乐、零噪声（ZN）、最佳噪声（ON）和高噪声（HN）条件。结果：单独的音乐逐渐增加了HRV的连贯性，并在1800秒左右趋于稳定。当音乐与噪音相结合时，HRV相干性表现出与倒u型一致的模式：中等噪音水平倾向于产生更高的相干性，而ZN和HN条件与同步性降低相关。个体差异是明显的，每个参与者显示一个独特的ON水平。脑电图结果显示α活动增加，特别是在右侧区域，与文献报道的放松状态一致。结论：在慢节奏音乐中嵌入噪声，选择性地放大了0.1 Hz附近的HRV相干性，与随机共振一致。这些发现表明，噪声调制音乐可以作为一种低成本，易于获得的补充方法来加强自主调节和压力调节。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Physiology & Behavior 医学-行为科学

CiteScore

5.70

自引率

3.40%

发文量

274

审稿时长

47 days

期刊介绍： Physiology & Behavior is aimed at the causal physiological mechanisms of behavior and its modulation by environmental factors. The journal invites original reports in the broad area of behavioral and cognitive neuroscience, in which at least one variable is physiological and the primary emphasis and theoretical context are behavioral. The range of subjects includes behavioral neuroendocrinology, psychoneuroimmunology, learning and memory, ingestion, social behavior, and studies related to the mechanisms of psychopathology. Contemporary reviews and theoretical articles are welcomed and the Editors invite such proposals from interested authors.