Auditory driving of the autonomic nervous system: Listening to theta-frequency binaural beats post-exercise increases parasympathetic activation and sympathetic withdrawal.
Auditory driving of the autonomic nervous system: Listening to theta-frequency binaural beats post-exercise increases parasympathetic activation and sympathetic withdrawal.
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DOI：
10.3389/fpsyg.2014.01248
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发表时间：
2014
影响因子：
3.8
通讯作者：
Sforzo GA
中科院分区：
文献类型：
--
作者：
McConnell PA;Froeliger B;Garland EL;Ives JC;Sforzo GA
双耳节拍是一种听觉错觉，当两个或两个以上频率相似的纯音通过立体声耳机双耳呈现时。尽管这种现象被认为有助于状态变化（例如，放松），很少有实证研究报告双耳节拍是否产生自主觉醒的变化。因此，本研究探讨了双耳搏动对运动后放松过程中自主动力学[心率变异性（HRV）]的影响。受试者（n = 21; 18-29岁）参加了一项双盲、安慰剂对照研究，在此期间，在两个随机和平衡的阶段（受试者内重复测量设计）给予双耳搏动和安慰剂。在每次访视开始时，受试者锻炼20分钟;锻炼后，受试者在安静的低光环境中单独放松时，听双耳节拍（“宽带”θ频率双耳节拍）或安慰剂（载波音）20分钟。因变量包括高频（HF，反映副交感神经活动）、低频（LF，反映交感神经和副交感神经活动）和LF/HF标准化功率以及自我报告的放松。与安慰剂访视相比，双耳搏动访视导致更大的自我报告放松，增加副交感神经激活和增加交感神经退缩。在20分钟放松期结束时，双耳搏动和安慰剂访视之间的HRV没有明显差异，尽管双耳搏动相关的HRV显著预测随后报告的放松。研究结果表明，听双耳节拍可能会对心率变异性的LF和HF分量产生急性影响，并可能增加主观的放松感。
Binaural beats are an auditory illusion perceived when two or more pure tones of similar frequencies are presented dichotically through stereo headphones. Although this phenomenon is thought to facilitate state changes (e.g., relaxation), few empirical studies have reported on whether binaural beats produce changes in autonomic arousal. Therefore, the present study investigated the effects of binaural beating on autonomic dynamics [heart rate variability (HRV)] during post-exercise relaxation. Subjects (n = 21; 18–29 years old) participated in a double-blind, placebo-controlled study during which binaural beats and placebo were administered over two randomized and counterbalanced sessions (within-subjects repeated-measures design). At the onset of each visit, subjects exercised for 20-min; post-exercise, subjects listened to either binaural beats (‘wide-band’ theta-frequency binaural beats) or placebo (carrier tones) for 20-min while relaxing alone in a quiet, low-light environment. Dependent variables consisted of high-frequency (HF, reflecting parasympathetic activity), low-frequency (LF, reflecting sympathetic and parasympathetic activity), and LF/HF normalized powers, as well as self-reported relaxation. As compared to the placebo visit, the binaural-beat visit resulted in greater self-reported relaxation, increased parasympathetic activation and increased sympathetic withdrawal. By the end of the 20-min relaxation period there were no observable differences in HRV between binaural-beat and placebo visits, although binaural-beat associated HRV significantly predicted subsequent reported relaxation. Findings suggest that listening to binaural beats may exert an acute influence on both LF and HF components of HRV and may increase subjective feelings of relaxation.
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影响因子：
10.7
作者：
Padmanabhan, R;Hildreth, AJ;Laws, D
通讯作者：
Laws, D
影响因子：
2.7
作者：
Bricout, Veronique-Aurelie;DeChenaud, Simon;Favre-Juvin, Anne
通讯作者：
Favre-Juvin, Anne
影响因子：
5.7
作者：
Lewis, AK;Osborn, IP;Roth, R
通讯作者：
Roth, R
影响因子：
3.7
作者：
Draganova, Rossitza;Ross, Bernhard;Pantev, Christo
通讯作者：
Pantev, Christo
DOI：
10.1249/01.mss.0000159139.29220.9a
发表时间：
2005-04-01
期刊：
MEDICINE AND SCIENCE IN SPORTS AND EXERCISE
影响因子：
--
作者：
Parekh, A;Lee, CM
通讯作者：
Lee, CM