Mindfulness training affects attention--or is it attentional effort?
Christian Gaden Jensen, Signe Vangkilde, Vibe G. Frøkjær, Steen G Hasselbalch
Journal of experimental psychology. General February 2012 DOI: 10.1037/a0024931 (opens in new tab)
Study at a glance
AI-extracted from the abstract| Characteristics | Randomized controlled trial Peer reviewed |
|---|---|
| Sample size | 48 |
| Population | Young, healthy meditation novices |
| Interventions | Mindfulness-based stress reduction (MBSR) nonmindfulness stress reduction (NMSR) financial incentive |
| Topics | Meditation |
| Key findings | MBSR, nonmindfulness stress reduction, and a financial incentive produced comparable or larger improvements on all reaction-time-based attention measures, with the incentive group often showing the largest effects. Only MBSR significantly improved selective attention, conscious perception threshold, and visual working memory capacity, and it reduced perceived and physiological stress while increasing mindfulness. The authors argue that previously observed attention improvements after MBSR may be seriously confounded by test effort and nonmindfulness stress reduction. |
Abstract
Improvements in attentional performance are at the core of proposed mechanisms for stress reduction in mindfulness meditation practices. However, this claim can be questioned because no previous studies have actively manipulated test effort in control groups and controlled for effects of stress reduction per se. In a blinded design, 48 young, healthy meditation novices were randomly assigned to a mindfulness-based stress reduction (MBSR), nonmindfulness stress reduction (NMSR), or inactive control group. At posttest, inactive controls were randomly split into nonincentive and incentive controls, the latter receiving a financial reward to improve attentional performance. Pre- and postintervention, 5 validated attention paradigms were employed along with self-report scales on mindfulness and perceived stress and saliva cortisol samples to measure physiological stress. Attentional effects of MBSR, NMSR, and the financial incentive were comparable or significantly larger in the incentive group on all reaction-time-based measures. However, selective attention in the MBSR group improved significantly more than in any other group. Similarly, only the MBSR intervention improved the threshold for conscious perception and visual working memory capacity. Furthermore, stress-reducing effects of MBSR were supported because those in the MBSR group showed significantly less perceived and physiological stress while increasing their mindfulness levels significantly. We argue that MBSR may contribute uniquely to attentional improvements but that further research focusing on non-reaction-time-based measures and outcomes less confounded by test effort is needed. Critically, our data demonstrate that previously observed improvements of attention after MBSR may be seriously confounded by test effort and nonmindfulness stress reduction.
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
Cited by 81
- Mindfulness Interventions Annual Review of Psychology September 30, 2016
- Mind the Hype: A Critical Evaluation and Prescriptive Agenda for Research on Mindfulness and Meditation Perspectives on Psychological Science October 10, 2017
- The psychological effects of meditation: A meta-analysis. Psychological Bulletin May 14, 2012
- Investigating the phenomenological matrix of mindfulness-related practices from a neurocognitive perspective. American Psychologist October 1, 2015
- Home practice in Mindfulness-Based Cognitive Therapy and Mindfulness-Based Stress Reduction: A systematic review and meta-analysis of participants' mindfulness practice and its association with outcomes Behaviour Research and Therapy May 10, 2017
and 76 more in the library
Cites 30
- The benefits of being present: Mindfulness and its role in psychological well-being. Journal of Personality and Social Psychology 2003
- Using Self-Report Assessment Methods to Explore Facets of Mindfulness Assessment January 27, 2006
- Mindfulness: A proposed operational definition. Clinical Psychology Science and Practice 2004
- Mindfulness training as a clinical intervention: A conceptual and empirical review. Clinical Psychology Science and Practice 2003
- Mechanisms of mindfulness Journal of Clinical Psychology December 29, 2005
and 25 more in the library