Bigliassi Marcelo, Karageorghis Costas I, Wright Michael J, Orgs Guido, Nowicky Alexander V
Department of Life Sciences, Brunel University London, UK.
Department of Life Sciences, Brunel University London, UK.
Physiol Behav. 2017 Aug 1;177:135-147. doi: 10.1016/j.physbeh.2017.04.023. Epub 2017 Apr 23.
The present study sought to further understanding of the brain mechanisms that underlie the effects of music on perceptual, affective, and visceral responses during whole-body modes of exercise. Eighteen participants were administered light-to-moderate intensity bouts of cycle ergometer exercise. Each exercise bout was of 12-min duration (warm-up [3min], exercise [6min], and warm-down [3min]). Portable techniques were used to monitor the electrical activity in the brain, heart, and muscle during the administration of three conditions: music, audiobook, and control. Conditions were randomized and counterbalanced to prevent any influence of systematic order on the dependent variables. Oscillatory potentials at the Cz electrode site were used to further understanding of time-frequency changes influenced by voluntary control of movements. Spectral coherence analysis between Cz and frontal, frontal-central, central, central-parietal, and parietal electrode sites was also calculated. Perceptual and affective measures were taken at five timepoints during the exercise bout. Results indicated that music reallocated participants' attentional focus toward auditory pathways and reduced perceived exertion. The music also inhibited alpha resynchronization at the Cz electrode site and reduced the spectral coherence values at Cz-C4 and Cz-Fz. The reduced focal awareness induced by music led to a more autonomous control of cycle movements performed at light-to-moderate-intensities. Processing of interoceptive sensory cues appears to upmodulate fatigue-related sensations, increase the connectivity in the frontal and central regions of the brain, and is associated with neural resynchronization to sustain the imposed exercise intensity.
本研究旨在进一步了解在全身运动模式下，音乐对感知、情感和内脏反应产生影响的大脑机制。18名参与者进行了轻度至中度强度的自行车测力计运动。每次运动时长为12分钟（热身[3分钟]、运动[6分钟]和放松[3分钟]）。在音乐、有声读物和对照这三种条件下，使用便携式技术监测大脑、心脏和肌肉的电活动。条件是随机且平衡的，以防止系统顺序对因变量产生任何影响。使用Cz电极部位的振荡电位来进一步了解受运动自主控制影响的时频变化。还计算了Cz与额叶、额中央、中央、中央顶叶和顶叶电极部位之间的频谱相干性分析。在运动期间的五个时间点进行感知和情感测量。结果表明，音乐将参与者的注意力焦点重新分配到听觉通路，并降低了感知到的运动强度。音乐还抑制了Cz电极部位的α波重新同步化，并降低了Cz-C4和Cz-Fz处的频谱相干值。音乐引起的焦点意识降低导致在轻度至中度强度下对自行车运动的更自主控制。内感受性感觉线索的处理似乎上调了与疲劳相关的感觉，增加了大脑额叶和中央区域的连通性，并与神经重新同步化相关，以维持所施加的运动强度。
