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Disentangling self from pain: mindfulness meditation–induced pain relief is driven by thalamic–default mode network decoupling

Gabriel Riegner, Grace Posey, Valeria Oliva, Youngkyoo Jung, William C. Mobley, Fadel Zeidan

Pain July 7, 2022 DOI: 10.1097/j.pain.0000000000002731 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Randomized controlled trial Preregistered Peer reviewed
Sample size 40
Population Healthy adults
Intervention Mindfulness meditation
Duration 4-session regimen
Topics Default mode network Meditation
Keywords Decoupling probability Mindfulness meditation Psychotherapist Functional connectivity
Citations 41
Registration NCT03414138
Key findings Mindfulness meditation reduces pain through decoupling of thalamus-precuneus connectivity and ventromedial prefrontal deactivation.

Abstract

ABSTRACT: For millenniums, mindfulness was believed to diminish pain by reducing the influence of self-appraisals of noxious sensations. Today, mindfulness meditation is a highly popular and effective pain therapy that is believed to engage multiple, nonplacebo-related mechanisms to attenuate pain. Recent evidence suggests that mindfulness meditation-induced pain relief is associated with the engagement of unique cortico-thalamo-cortical nociceptive filtering mechanisms. However, the functional neural connections supporting mindfulness meditation-based analgesia remain unknown. This mechanistically focused clinical trial combined functional magnetic resonance imaging with psychophysical pain testing (49°C stimulation and pain visual analogue scales) to identify the neural connectivity supporting the direct modulation of pain-related behavioral and neural responses by mindfulness meditation. We hypothesized that mindfulness meditation-based pain relief would be reflected by greater decoupling between brain mechanisms supporting appraisal (prefrontal) and nociceptive processing (thalamus). After baseline pain testing, 40 participants were randomized to a well-validated, 4-session mindfulness meditation or book-listening regimen. Functional magnetic resonance imaging and noxious heat (49°C; right calf) were combined during meditation to test study hypotheses. Mindfulness meditation significantly reduced behavioral and neural pain responses when compared to the controls. Preregistered (NCT03414138) whole-brain analyses revealed that mindfulness meditation-induced analgesia was moderated by greater thalamus-precuneus decoupling and ventromedial prefrontal deactivation, respectively, signifying a pain modulatory role across functionally distinct neural mechanisms supporting self-referential processing. Two separate preregistered seed-to-seed analyses found that mindfulness meditation-based pain relief was also associated with weaker contralateral thalamic connectivity with the prefrontal and primary somatosensory cortex, respectively. Thus, we propose that mindfulness meditation is associated with a novel self-referential nociceptive gating mechanism to reduce pain.

Comparable studies

Other randomized controlled trials on default mode network, most cited first.

Study Year Design Participants
Neural correlates of the psychedelic state as determined by fMRI studies with psilocybin Healthy volunteers 2012 Within-subjects, placebo-controlled, task-free fMRI study n = 30
The effects of psilocybin and MDMA on between-network resting state functional connectivity in healthy volunteers 2014 Placebo-controlled study
Ketamine Decreases Resting State Functional Network Connectivity in Healthy Subjects: Implications for Antidepressant Drug Action Healthy subjects 2012 Randomized, placebo-controlled, double-blind, crossover rsfMRI challenge
Antidepressants Normalize the Default Mode Network in Patients With Dysthymia Subjects with dysthymic disorder and healthy control participants aged 18 to 53 years 2013 Randomized controlled trial n = 41
Functional Connectivity Measures After Psilocybin Inform a Novel Hypothesis of Early Psychosis Healthy volunteers 2012 Within-subject, placebo-controlled experimental study n = 15

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