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Mindfulness and Attention: Current State-of-Affairs and Future Considerations

R. Prakash, S. Fountain-Zaragoza, A. Kramer, Shaadee Samimy, J. Wegman

Journal of Cognitive Enhancement December 9, 2018 DOI: 10.1007/s41465-019-00144-5 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Systematic review Randomized Longitudinal Peer reviewed
Sample size 57
Population Participants in mindfulness training studies, including retreat, non-randomized, and randomized controlled trials
Intervention Mindfulness meditation
Topics Meditation
Key findings Non-randomized and retreat studies provide promising evidence of gains in alerting and conflict monitoring after mindfulness training, but randomized controlled trials, particularly those with active controls, show more mixed results. The authors argue that the field needs active comparison groups, reduced demand characteristics, detailed protocols, and validated outcome measures to disentangle placebo effects and establish mindfulness meditation as an effective cognitive rehabilitation tool.

Abstract

This review examines longitudinal studies of changes in components of attention following mindfulness training. A total of 57 retreat studies, non-randomized trials, and randomized controlled trials were identified. Employing the classical taxonomy proposed by Posner and Petersen (Annual Review of Neuroscience, 13(1), 25–42, 1990), outcome measures were broadly categorized based on whether they involved maintenance of an aroused state (alerting), selective prioritization of attention to target items (orienting), or assessed conflict monitoring (executive attention). Although many non-randomized and retreat studies provide promising evidence of gains in both alerting and conflict monitoring following mindfulness training, evidence from randomized controlled trials, especially those involving active control comparison groups, is more mixed. This review calls attention to the urgent need in our field of contemplative sciences to adopt the methodological rigor necessary for establishing mindfulness meditation as an effective cognitive rehabilitation tool. Although studies including wait-listed control comparisons were fruitful in providing initial feasibility data and pre-post effect sizes, there is a pressing need to employ standards that have been heavily advocated for in the broader cognitive and physical training literatures. Critically, inclusion of active comparison groups and explicit attention to the reduction of demand characteristics are needed to disentangle the effects of placebo from treatment. Further, detailed protocols for mindfulness and control groups and examination of theoretically guided outcome variables with established metrics for reliability and validity are key ingredients in the systematic study of mindfulness meditation. Adoption of such methodological rigor will allow for causal claims supporting mindfulness training as an efficacious treatment modality for cognitive rehabilitation and enhancement.

Comparable studies

Other systematic reviews and meta-analyses on meditation, most cited first.

Study Year Design Participants
Meditation Programs for Psychological Stress and Well-being Diverse adult clinical populations 2014 Meta-analysis n = 3,515
Mindfulness-Based Stress Reduction for Stress Management in Healthy People: A Review and Meta-Analysis Healthy subjects 2009 Systematic review and meta-analysis
The psychological effects of meditation: A meta-analysis. Nonclinical groups of adult meditators 2012 Meta-analysis n = 163
Efficacy of Mindfulness-Based Cognitive Therapy in Prevention of Depressive Relapse Adults with recurrent depression in full or partial remission 2016 Meta-analysis of individual patient data from randomized controlled trials n = 1,258
Mindfulness‐Based Stress Reduction and Mindfulness‐Based Cognitive Therapy – a systematic review of randomized controlled trials 2011 Systematic review

Citations in the library

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