α波段感觉诱捕的电生理和行为效应:神经机制与临床应用
Electrophysiological and Behavioral Effects of Alpha-Band Sensory Entrainment: Neural Mechanisms and Clinical Applications.
作者信息
Gallina Jessica, Marsicano Gianluca, Romei Vincenzo, Bertini Caterina
机构信息
Centre for Studies and Research in Cognitive Neuroscience, University of Bologna, Via Rasi e Spinelli 176, 47521 Cesena, Italy.
Department of Psychology, University of Bologna, Viale Berti Pichat 5, 40121 Bologna, Italy.
出版信息
Biomedicines. 2023 May 8;11(5):1399. doi: 10.3390/biomedicines11051399.
Alpha-band (7-13 Hz) activity has been linked to visuo-attentional performance in healthy participants and to impaired functionality of the visual system in a variety of clinical populations including patients with acquired posterior brain lesion and neurodevelopmental and psychiatric disorders. Crucially, several studies suggested that short uni- and multi-sensory rhythmic stimulation (i.e., visual, auditory and audio-visual) administered in the alpha-band effectively induces transient changes in alpha oscillatory activity and improvements in visuo-attentional performance by synchronizing the intrinsic brain oscillations to the external stimulation (neural entrainment). The present review aims to address the current state of the art on the alpha-band sensory entrainment, outlining its potential functional effects and current limitations. Indeed, the results of the alpha-band entrainment studies are currently mixed, possibly due to the different stimulation modalities, task features and behavioral and physiological measures employed in the various paradigms. Furthermore, it is still unknown whether prolonged alpha-band sensory entrainment might lead to long-lasting effects at a neural and behavioral level. Overall, despite the limitations emerging from the current literature, alpha-band sensory entrainment may represent a promising and valuable tool, inducing functionally relevant changes in oscillatory activity, with potential rehabilitative applications in individuals characterized by impaired alpha activity.
在健康参与者中,α波段(7 - 13赫兹)的活动与视觉注意力表现有关,在包括后天性后脑损伤患者以及神经发育和精神疾病患者在内的各种临床人群中,α波段活动与视觉系统功能受损有关。至关重要的是,多项研究表明,以α波段进行的短期单感官和多感官节律性刺激(即视觉、听觉和视听刺激)通过使内在脑振荡与外部刺激同步(神经夹带),能有效诱发α振荡活动的短暂变化并改善视觉注意力表现。本综述旨在阐述α波段感觉夹带的当前研究现状,概述其潜在的功能效应和当前存在的局限性。的确,α波段夹带研究的结果目前参差不齐,这可能是由于不同范式中采用的刺激方式、任务特征以及行为和生理测量方法不同所致。此外,长期的α波段感觉夹带是否会在神经和行为水平上产生持久影响仍不清楚。总体而言,尽管当前文献存在局限性,但α波段感觉夹带可能是一种有前景且有价值的工具,能在振荡活动中诱发与功能相关的变化,在α活动受损的个体中具有潜在的康复应用价值。