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Effortless Attention as a Biomarker for Experienced Mindfulness Practitioners.

Guaraci Ken Tanaka, Tolou Maslahati, Mariana Gongora, Juliana Bittencourt, Luiz Carlos Serramo Lopez, Marcelo Marcos Piva Demarzo, Henning Budde, Silmar Teixeira, Luís Fernando Basile, Javier García-campayo, Mauricio Cagy, Pedro Ribeiro, Bruna Velasques

PLoS One 2015 DOI: 10.1371/journal.pone.0138561 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Observational study Peer reviewed
Sample size 21
Population Long-term meditators and first-time meditators
Intervention open monitoring (OM) meditation
Duration 40 minutes of open monitoring meditation, with 4 minutes of rest before and after
Measures frontal beta power (EEG)
Topics Meditation
Key findings Long-term meditators showed lower frontal beta power during open monitoring meditation compared to first-time meditators, with significant group-by-time interactions at multiple frontal electrodes. The authors suggest this pattern may be a biomarker for long-term meditation practice and could relate to improved attentional state and cognitive efficiency.

Abstract

The present study aimed at comparing frontal beta power between long-term (LTM) and first-time meditators (FTM), before, during and after a meditation session. We hypothesized that LTM would present lower beta power than FTM due to lower effort of attention and awareness. Twenty one participants were recruited, eleven of whom were long-term meditators. The subjects were asked to rest for 4 minutes before and after open monitoring (OM) meditation (40 minutes). The two-way ANOVA revealed an interaction between the group and moment factors for the Fp1 (p<0.01), F7 (p = 0.01), F3 (p<0.01), Fz (p<0.01), F4 (p<0.01), F8 (p<0.01) electrodes. We found low power frontal beta activity for LTM during the task and this may be associated with the fact that OM is related to bottom-up pathways that are not present in FTM. We hypothesized that the frontal beta power pattern may be a biomarker for LTM. It may also be related to improving an attentive state and to the efficiency of cognitive functions, as well as to the long-term experience with meditation (i.e., life-time experience and frequency of practice).

Comparable studies

Other observational and cohort studies on meditation, most cited first.

Study Year Design Participants
Using Self-Report Assessment Methods to Explore Facets of Mindfulness Undergraduate students 2006 Observational cohort
Effectiveness of a meditation-based stress reduction program in the treatment of anxiety disorders Patients with generalized anxiety disorder or panic disorder with or without agoraphobia 1992 Observational cohort n = 22
Meditation experience is associated with increased cortical thickness Participants with extensive Insight meditation experience and matched controls 2005 Observational cohort n = 20
Meditation experience is associated with differences in default mode network activity and connectivity Experienced meditators and matched meditation-naive controls 2011 Observational cohort
Long-term meditators self-induce high-amplitude gamma synchrony during mental practice Long-term Buddhist practitioners and controls 2004 Observational cohort

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