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No sustained attention differences in a longitudinal randomized trial comparing mindfulness based stress reduction versus active control.

Donal G. Maccoon, Katherine A Maclean, Richard J. Davidson, Clifford D Saron, Antoine Lutz

PLoS One 2014 DOI: 10.1371/journal.pone.0097551 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Randomized controlled trial Longitudinal Peer reviewed
Sample size 63
Population Community participants typical of MBSR participants
Interventions Mindfulness Based Stress Reduction (MBSR) Health Enhancement Program (HEP)
Duration 8-week intervention
Topics Meditation
Keywords Mindfulness training Awareness practice Sustained attention Focus Concentration Vigilance Cognitive benefits Cognitive function Cognitive enhancement Mental well-being Brain health Visual discrimination Research study Clinical trial Scientific study Empirical research Comparative study
Citations 97
Registration NCT01301105
Key findings MBSR did not improve sustained attention more than an active control condition, though some evidence for improved visual discrimination was found.

Abstract

Mindfulness Based Stress Reduction (MBSR) is a secular form of meditation training. The vast majority of the extant literature investigating the health effects of mindfulness interventions relies on wait-list control comparisons. Previous studies have found that meditation training over several months is associated with improvements in cognitive control and attention. We used a visual continuous performance task (CPT) to test the effects of eight weeks of mindfulness training on sustained attention by comparing MBSR to the Health Enhancement Program (HEP), a structurally equivalent, active control condition in a randomized, longitudinal design (ClinicalTrials.gov, NCT01301105) focusing on a non-clinical population typical of MBSR participants. Researchers were blind to group assignment. 63 community participants were randomized to either MBSR (n = 31) or HEP (n = 32). CPT analyses were conducted on 29 MBSR participants and 25 HEP participants. We predicted that MBSR would improve visual discrimination ability and sustained attention over time on the CPT compared to HEP, with more home practice associated with greater improvements. Our hypotheses were not confirmed but we did find some evidence for improved visual discrimination similar to effects in partial replication of other research. Our study had sufficient power to demonstrate that intervention groups do not differ in their improvement over time in sustained attention performance. One of our primary predictions concerning the effects of intervention on attentional fatigue was significant but not interpretable. Attentional sensitivity is not affected by mindfulness practice as taught in MBSR, but it is unclear whether mindfulness might positively affect another aspect of attention, vigilance. These results also highlight the relevant procedural modifications required by future research to correctly investigate the role of sustained attention in similar samples. ClinicalTrials.gov, NCT01301105.

Comparable studies

Other randomized controlled trials on meditation, most cited first.

Study Year Design Participants
Alterations in Brain and Immune Function Produced by Mindfulness Meditation Healthy employees in a work environment 2003 Randomized controlled trial n = 41
Prevention of relapse/recurrence in major depression by mindfulness-based cognitive therapy. Recovered recurrently depressed patients 2000 Randomized controlled trial n = 145
Open hearts build lives: Positive emotions, induced through loving-kindness meditation, build consequential personal resources. Working adults 2008 Randomized controlled trial n = 139
Short-term meditation training improves attention and self-regulation Undergraduate Chinese students 2007 Randomized controlled trial n = 40
Mindfulness-Based Cognitive Therapy for Depression: Replication and Exploration of Differential Relapse Prevention Effects. Recovered recurrently depressed patients 2004 Randomized controlled trial n = 73

Citations in the library

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