Stimulating meditation: a pre-registered randomised controlled experiment combining a single dose of the cognitive enhancer, modafinil, with brief mindfulness training.


Journal

Journal of psychopharmacology (Oxford, England)
ISSN: 1461-7285
Titre abrégé: J Psychopharmacol
Pays: United States
ID NLM: 8907828

Informations de publication

Date de publication:
Jun 2021
Historique:
pubmed: 2 3 2021
medline: 27 1 2022
entrez: 1 3 2021
Statut: ppublish

Résumé

Mindfulness-meditation has a variety of benefits on well-being. However, individuals with primary attentional impairments (e.g. attention deficit disorder) or attentional symptoms secondary to anxiety, depression or addiction, may be less likely to benefit, and require additional mindfulness-augmenting strategies. To determine whether a single dose of the cognitive enhancer, modafinil, acutely increases subjective and behavioural indices of mindfulness, and augments brief mindfulness training. A randomised, double-blind, placebo-controlled, 2 (drug: placebo, modafinil) × 2 (strategy: mindfulness, relaxation control) experiment was conducted. Seventy-nine meditation-naïve participants were assigned to: placebo-relaxation, placebo-mindfulness, modafinil-relaxation or modafinil-mindfulness. Pre-drug, post-drug and post-strategy state mindfulness, affect and autonomic activity, along with post-strategy sustained attention and mind-wandering were assessed within a single lab session. After the session, participants were instructed to practice their assigned behavioural strategy daily for one week, with no further drug administration, after which, follow-up measures were taken. As predicted, modafinil acutely increased state mindfulness and improved sustained attention. Differential acute strategy effects were found following mindfulness on autonomic activity but not state mindfulness. There were no strategy or drug effects on mind-wandering. However, exploratory analyses indicated that participants receiving modafinil engaged in more strategy practice across strategy conditions during follow-up. Modafinil acutely mimicked the effects of brief mindfulness training on state mindfulness but did not enhance the effects of this training. Limitations of the current study, and recommendations for future research examining modafinil as an adjunct to mindfulness- (or relaxation-) based treatments are discussed.

Sections du résumé

BACKGROUND BACKGROUND
Mindfulness-meditation has a variety of benefits on well-being. However, individuals with primary attentional impairments (e.g. attention deficit disorder) or attentional symptoms secondary to anxiety, depression or addiction, may be less likely to benefit, and require additional mindfulness-augmenting strategies.
AIMS OBJECTIVE
To determine whether a single dose of the cognitive enhancer, modafinil, acutely increases subjective and behavioural indices of mindfulness, and augments brief mindfulness training.
METHODS METHODS
A randomised, double-blind, placebo-controlled, 2 (drug: placebo, modafinil) × 2 (strategy: mindfulness, relaxation control) experiment was conducted. Seventy-nine meditation-naïve participants were assigned to: placebo-relaxation, placebo-mindfulness, modafinil-relaxation or modafinil-mindfulness. Pre-drug, post-drug and post-strategy state mindfulness, affect and autonomic activity, along with post-strategy sustained attention and mind-wandering were assessed within a single lab session. After the session, participants were instructed to practice their assigned behavioural strategy daily for one week, with no further drug administration, after which, follow-up measures were taken.
RESULTS RESULTS
As predicted, modafinil acutely increased state mindfulness and improved sustained attention. Differential acute strategy effects were found following mindfulness on autonomic activity but not state mindfulness. There were no strategy or drug effects on mind-wandering. However, exploratory analyses indicated that participants receiving modafinil engaged in more strategy practice across strategy conditions during follow-up.
CONCLUSIONS CONCLUSIONS
Modafinil acutely mimicked the effects of brief mindfulness training on state mindfulness but did not enhance the effects of this training. Limitations of the current study, and recommendations for future research examining modafinil as an adjunct to mindfulness- (or relaxation-) based treatments are discussed.

Identifiants

pubmed: 33645313
doi: 10.1177/0269881121991835
pmc: PMC8278547
doi:

Substances chimiques

Nootropic Agents 0
Modafinil R3UK8X3U3D

Types de publication

Journal Article Randomized Controlled Trial

Langues

eng

Sous-ensembles de citation

IM

Pagination

621-630

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Auteurs

Emily M Thomas (EM)

Clinical Psychopharmacology Unit, University College London, London, UK.

Tom P Freeman (TP)

Clinical Psychopharmacology Unit, University College London, London, UK.
Addiction and Mental Health Group (AIM), University of Bath, Bath, UK.

Patrick Poplutz (P)

Clinical Psychopharmacology Unit, University College London, London, UK.

Kane Howden (K)

Clinical Psychopharmacology Unit, University College London, London, UK.

Chandni Hindocha (C)

Clinical Psychopharmacology Unit, University College London, London, UK.
Translational Psychiatry Research Group, University College London, London, UK.

Michael Bloomfield (M)

Clinical Psychopharmacology Unit, University College London, London, UK.
Translational Psychiatry Research Group, University College London, London, UK.

Sunjeev K Kamboj (SK)

Clinical Psychopharmacology Unit, University College London, London, UK.

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Classifications MeSH