Mindfulness Training Improves Attention: Evidence from Behavioral and Event-related Potential Analyses

Effects of long-term mindfulness meditation training on attentional capacity in professional male fencer athletes

Attention is a crucial cognitive ability for sports performance. The current research aimed to investigate whether long-term mindfulness meditation (MM) intervention enhances male athletes' attentional function and alters the activity of brain regions related to attention. In this experiment, we recruited 47 professional male fencer athletes completed two main trials-an MM trial and a control trial. In MM trial, the participants were provided with 3 sessions/wk (20 min/session) of mindfulness meditation training for 20 weeks. In control trial, the participants were instead assigned a mind-wandering related audio to listen to at that time. In each main trial, the five facets of mindfulness questionnaire (FFMQ), cognitive function (i.e. attention span, attention concentrativeness, attention stability, attentional network, distractibility and attentional blink), salivary cortisol, blood lactate and mental fatigue were measured at baseline (pretest) and after the intervention (posttest). The cerebral oxygenation status was recorded using functional near-infrared spectroscopy(fNIRS) during the cognitive function test. In cognition test, participants' attention span, attention concentrativeness, attention stability, attentional networks on task-relevant information (targets) were better in the MM group, supported by eliciting increased oxygenated haemoglobin (HbO) concentration in the prefrontal cortex of the brain. Conversely, there are no remarkable different of distractibility and attentional blink on task-irrelevant information in the MM group than in the Con group (p > 0.05). Moreover, a lower mental fatigue level and lower salivary cortisol concentration were observed in the MM group than in the Con group after the intervention at posttest. Overall, 20-week MM training interventions after physical training improve attentive capacity and cerebral oxygenation concentration, decrease salivary cortisol concentrations and mental fatigue. The findings suggest that long-term MM training interventions after physical training facilitates focus during competition and improves athletic performance.

The impact of meditation on sustained attention in nonclinical population: An extensive review

BACKGROUND

Meditation, encompassing focussed attention (FA) and open monitoring (OM) approaches, is recognised for its potential to enhance cognitive functions. Sustained attention, a critical component of attentional processes, influences cognitive capacity and is linked to meditation benefits. However, a robust and extensive review analysis needs to address the specific relationship between meditation and sustained attention in nonclinical populations.

METHODS

Following PRISMA guidelines, the authors reviewed English articles published from 2013 to 2023 in Q1 SCOPUS-indexed journals. Inclusion criteria comprised original research studies exploring the impact of meditation on sustained attention in healthy individuals. The modified Jadad Scale assessed methodological quality.

RESULTS

12 studies (four RCTs, eight non-RCTs) with 1447 participants were included. Concentrative or FA meditation demonstrated consistent positive effects on sustained attention, including reduced perceived stress and increased focussed attention. OM meditation significantly improved sustained attention, as evidenced by reduced mind wandering and enhanced N2 responses. Meditators consistently outperformed non-meditators in sustained attention tasks, demonstrating faster reactions and lower error rates.

DISCUSSION

This review explored the impact of meditation on sustained attention across diverse non-clinical populations through 12 investigations involving 1447 subjects with meditation interventions spanning from 21 days to 3 months. The study revealed that both FA and OM meditation approaches positively impact sustained attention, highlighting their potential role in enhancing cognitive function. Meditators consistently exhibited superior sustained attention abilities, suggesting the cognitive benefits of regular meditation practice. The findings of this study are consistent with prior research, contributing to the growing body of knowledge on the advantageous impacts of meditation on sustained attention. However, caution is needed in generalizing findings due to study limitations. Future research should use standardized methodologies and conduct longer-term follow-ups to better elucidate the effects of meditation interventions on sustained attention across diverse populations.

Unveiling the neural mechanisms of acute aerobic exercise on inhibitory control among young adults with obesity: Insights from an ERP study

Obesity has become a prominent public health concern worldwide and is associated with adverse cognitive function. Exercise, particularly aerobic exercise, is known to benefit for weight loss and cognitive function. However, whether acute aerobic exercise could yield benefits to obese individuals and the precise brain mechanisms of action remain poorly understood. The study aimed to investigate whether acute aerobic exercise could improve inhibitory control among obese individuals and what neuroelectric mechanisms are implicated. A 3 (session: control, low-intensity exercise, moderate-intensity exercise) × 2 (congruency: congruent, incongruent) within-subject design was conducted. 18 obese young male adults underwent three sessions of 30-min interventions in a counterbalanced order seperated by five days: moderate-intensity aerobic exercise (MIE), low-intensity aerobic exercise (LIE) and a control session (a sedentary period of seated rest). The Flanker task and EEG recordings (N2 and P3 amplitude) were investigated following exercise and the control treatment. Results showed that the N2 amplitude following MIE was larger than the control session, whereas a larger N2 and reduced congruent P3 amplitude was observed following MIE than LIE. However, no main effect of the session was found for reaction time and accuracy, but a significant main effect of congruency was observed. These findings suggest acute moderate-intensity aerobic exercise may modulate brain activity through enhanced recruitment of attentional resources for cognitive control and conflict monitoring in adults with obesity.

Differences in attentional function between experienced mindfulness meditators and non-meditators

Introduction

Attentional enhancement has often been identified as the central cognitive mechanism underlying the benefits of mindfulness meditation. However, the extent to which this enhancement is observable in the neural processes underlying long-term meditation is unclear. This current study aimed to examine differences in attentional performance between meditators and controls (non-meditators) using a visual oddball task with concurrent electroencephalography (EEG) recordings.

Methods

Thirty-four participants were recruited, including 16 meditators and 18 healthy controls, who were non-meditators. The participants completed a visual oddball task, using visual stimuli, and EEG recording.

Results

Self-reports revealed that meditators had higher mindful attention scores than did the control group. The behavioral results showed that the meditators demonstrated faster reaction times than the non-meditators did. Neural findings indicated a higher P2 amplitude in the meditators than in the controls. The meditators demonstrated a significantly higher P3 in the target trials than in the distractor trials, which was not observed in the controls. Additionally, the time-frequency analysis demonstrated that the delta and theta powers in the meditators were significantly higher than those in the controls.

Conclusions

The study suggests the meditators exhibited greater attentional performance than the controls did, as revealed by EEG and behavioral measures. This study extends previous research on the effects of mindfulness meditation on attention and adds to our understanding of the effects of long-term mindfulness meditation.