Electrophysiological correlates of dispositional mindfulness: A quantitative and complexity EEG study

IF 3.2 2区 心理学 Q1 PSYCHOLOGY, MULTIDISCIPLINARY British journal of psychology Pub Date : 2023-02-07 DOI:10.1111/bjop.12636
Nuria Victoria Aguerre, Carlos Javier Gómez-Ariza, Antonio José Ibáñez-Molina, María Teresa Bajo
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Abstract

While growing evidence supports that dispositional mindfulness relates to psychological health and cognitive enhancement, to date there have been only a few attempts to characterize its neural underpinnings. In the present study, we aimed at exploring the electrophysiological (EEG) signature of dispositional mindfulness using quantitative and complexity measures of EEG during resting state and while performing a learning task. Hundred twenty participants were assessed with the Five Facet Mindfulness Questionnaire and underwent 5 min eyes-closed resting state and 5 min at task EEG recording. We hypothesized that high mindfulness individuals would show patterns of brain activity related to (a) lower involvement of the default mode network (DMN) at rest (reduced frontal gamma power) and (b) a state of ‘task readiness’ reflected in a more similar pattern from rest to task (reduced overall q-EEG power at rest but not at task), as compared to their low mindfulness counterparts. Dispositional mindfulness was significantly linked to reduced frontal gamma power at rest and lower overall power during rest but not at task. In addition, we found a trend towards higher entropy during task performance in mindful individuals, which has recently been reported during mindfulness meditation. Altogether, our results add to those from expert meditators to show that high (dispositional) mindfulness seems to have a specific electrophysiological pattern characteristic of less involvement of the DMN and mind-wandering processes.

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性情性正念的电生理相关:一项定量和复杂的脑电图研究
虽然越来越多的证据表明,性格正念与心理健康和认知增强有关,但迄今为止,只有少数人试图描述其神经基础。在本研究中,我们旨在通过静息状态和执行学习任务时的EEG定量和复杂性测量来探索气质正念的电生理特征。采用五方面正念问卷对120名参与者进行了5分钟闭眼静息状态和5分钟任务脑电图记录。我们假设,与低正念个体相比,高正念个体的大脑活动模式与(a)休息时较低的默认模式网络(DMN)参与(额叶伽马功率降低)和(b)从休息到任务的“任务准备”状态反映出更相似的模式(休息时总体q-EEG功率降低,但任务时没有)相关。性格正念与休息时额叶伽玛能量降低和休息时总能量降低显著相关,但与任务无关。此外,我们发现正念个体在任务执行过程中有更高熵的趋势,这一趋势最近在正念冥想中得到了报道。总之,我们的研究结果与冥想专家的研究结果相结合,表明高(倾向)正念似乎具有一种特定的电生理模式,即较少参与DMN和走神过程。
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来源期刊
British journal of psychology
British journal of psychology PSYCHOLOGY, MULTIDISCIPLINARY-
CiteScore
7.60
自引率
2.50%
发文量
67
期刊介绍: The British Journal of Psychology publishes original research on all aspects of general psychology including cognition; health and clinical psychology; developmental, social and occupational psychology. For information on specific requirements, please view Notes for Contributors. We attract a large number of international submissions each year which make major contributions across the range of psychology.
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