Ramos-Loyo Julieta, Ruiz Gómez Luis P, Rivera-Tello Sergio I
Institute of Neurosciences, University of Guadalajara, Guadalajara, Jalisco, Mexico.
Translational Bioengineering Department, CUCEI, University of Guadalajara, Guadalajara, Jalisco, Mexico.
Psychophysiology. 2025 Aug;62(8):e70118. doi: 10.1111/psyp.70118.
Music is a meaningful stimulus in human life that can modify brain activity and cognitive processing in ways that affect complex abilities like time perception. Musical training produces plastic changes in the brain that may enhance time perception abilities; therefore, musicians' brains may respond differently during time perception after listening to music. This study explored the effect of music on time production in two groups -musicians (MU) and non-musicians (NM) by comparing three metrics of EEG connectivity: global and local efficiency, and network density. Behavioral results showed that NM improved accuracy after listening to music. MU had higher timing accuracy, but no changes were detected due to listening to music. Participants had lower connectivity while listening to music than during task performance with or without previous music. NM deployed higher local efficiency than MU, but the latter had higher global efficiency and network density. Results suggest that music can modulate brain functional synchronization involved in time perception. Moreover, the differential between-group results provide further evidence of the significant influence of musical training on the functional connectivity of the human brain at rest and when estimating time. Music training may produce functional changes that favor global integration and optimize temporal processing, with less susceptibility to external temporal perturbations.
音乐是人类生活中有意义的刺激因素，它可以通过影响诸如时间感知等复杂能力的方式来改变大脑活动和认知过程。音乐训练会使大脑产生可塑性变化，这可能会增强时间感知能力；因此，音乐家的大脑在听音乐后的时间感知过程中可能会有不同的反应。本研究通过比较脑电图（EEG）连通性的三个指标：全局和局部效率以及网络密度，探讨了音乐对两组人群——音乐家（MU）和非音乐家（NM）时间生成的影响。行为结果表明，非音乐家在听音乐后提高了准确性。音乐家的计时准确性更高，但听音乐后未检测到变化。与有或没有先前音乐的任务执行期间相比，参与者在听音乐时的连通性较低。非音乐家的局部效率高于音乐家，但后者的全局效率和网络密度更高。结果表明，音乐可以调节时间感知中涉及的大脑功能同步。此外，组间差异结果进一步证明了音乐训练对静息状态和估计时间时人类大脑功能连通性的重大影响。音乐训练可能会产生有利于全局整合并优化时间处理的功能变化，对外界时间干扰的敏感性较低。
