March 2026
Default mode network
What March 2026's 14 new studies found, synthesized from the papers below. All Default mode network research →
The synthesis
Synthesized from 10 studies in the library · AI-generated, grounded in the abstracts below
Found by searching the library for Default mode network, DMN, default-mode network, then ranked by relevance.
Research from March 2026 indicates that the default mode network (DMN) is central to self-referential processing, with its disruption or modulation linked to altered states such as ego dissolution, self-transcendence, and creativity. Studies consistently show that psychedelics like LSD and ketamine reduce DMN integrity or coupling, which correlates with subjective ego dissolution, while other interventions like hypnosis and oxytocin also modulate DMN activity. However, evidence is mixed and limited by small samples, inconsistent methods, and a lack of long-term follow-up, so conclusions about clinical efficacy remain tentative.
Evidence by study
Direction is which way each study's own result points, not our rating of the study. All 14 matching studies were reviewed; the 10 that directly address the question are shown here.
What the directions mean
- Supports:
- the study found the intervention worked, or its hypothesis held.
- Opposes:
- it found the opposite, no benefit or a harm.
- No effect:
- no significant difference either way.
- Mixed:
- effects in both directions within the same study.
- Unclear:
- the abstract does not report a direction.
| Study | Design | Sample size | Direction | Finding |
|---|---|---|---|---|
| Poor dream recall associates with Alzheimer's disease biomarkers and dementia risk 2026 | observational cohort | 1049 | Supports | Higher p-tau217 levels and APOE ε4 carriage were associated with lower odds of dream recall, and lack of dream recall predicted faster cognitive decline and higher dementia risk over 10 years, linking DMN dysfunction to early neurodegeneration. |
| A network for self-transcendence derived from patients with brain lesions 2026 | observational cohort | 88 | Supports | Lesion network mapping identified a network overlapping the default mode network where posterior midline regions constrain and brainstem/anterior midline regions facilitate self-transcendence, providing causal evidence for DMN's role in self-related experience. |
| Enhanced default mode network stability in highly superior autobiographical memory. 2026 | observational cohort | Supports | Enhanced default mode network stability was associated with highly superior autobiographical memory, suggesting DMN integrity supports exceptional self-referential memory. | |
| Detecting neuroplastic effects induced by ketamine in healthy human subjects: A multimodal approach. 2026 | observational cohort | 11 | Supports | Ketamine increased ACC glutamate and altered ACC connectivity with dlPFC and amygdala, with DMN activity changes linked to synaptic plasticity, pointing to DMN as a hub for ketamine's long-term effects. |
| Psilocybin effects on brain functional connectivity: a systematic review of fMRI studies 2026 | systematic review | 20 | Mixed | The systematic review found inconsistent methods and designs across psilocybin fMRI studies, with most focusing on amygdala, ACC, and prefrontal cortex, and lacking follow-up scanning timepoints. |
| The Neuropeptidergic Modulation of Phenomenological Depth: A Review of Oxytocin’s Role in Facilitating States of Pure Consciousness 2026 | review | Supports | Argues that oxytocin modulates the default mode network and down-regulates the amygdala, creating a neurochemical substrate for non-dual awareness and ego dissolution. | |
| From default to creativity: prefrontal and cerebellar contributions of the default mode network to goal-directed remote thinking 2026 | theoretical or philosophical paper | Supports | Proposes that the default mode network, through interactions with prefrontal and cerebellar regions, flexibly shifts from default to creative modes to support goal-directed remote thinking. | |
| Remodeling of the ventral attention network-default mode network as potential neural correlates of anxiety in lumbar disc herniation patients treated with lever positioning manipulation: a resting-state fMRI study. 2026 | prospective study | 90 | Supports | Lever positioning manipulation treatment was associated with relief of negative emotions and changes in brain functional connectivity, with connectivity changes in the ventral attention and default mode networks potentially linked to anxiety relief. |
| Hypnosis as a Mechanism of Emotion Regulation and Self-Integration: An Integrative Review of Neural, Cognitive, and Experiential Pathways to Fundamental Peace 2026 | integrative review | Supports | Argues that hypnosis reconfigures large-scale brain networks, particularly reducing default mode network activity and enhancing executive control-salience network coupling, to enable adaptive emotion regulation and reduce dissociative fragmentation. | |
| LSD Relaxes Structural Constraints on Brain Dynamics and Default Mode Decoupling Tracks Ego Dissolution 2026 | experimental study | Supports | LSD induced global decoupling of low-frequency brain activity from anatomical constraints and frequency-selective reorganization of gamma-band activity within the default-mode network, with greater gamma decoupling predicting ego dissolution intensity. |
Higher p-tau217 levels and APOE ε4 carriage were associated with lower odds of dream recall, and lack of dream recall predicted faster cognitive decline and higher dementia risk over 10 years, linking DMN dysfunction to early neurodegeneration.
observational cohort Sample size: 1049
Lesion network mapping identified a network overlapping the default mode network where posterior midline regions constrain and brainstem/anterior midline regions facilitate self-transcendence, providing causal evidence for DMN's role in self-related experience.
observational cohort Sample size: 88
Enhanced default mode network stability was associated with highly superior autobiographical memory, suggesting DMN integrity supports exceptional self-referential memory.
observational cohort
Ketamine increased ACC glutamate and altered ACC connectivity with dlPFC and amygdala, with DMN activity changes linked to synaptic plasticity, pointing to DMN as a hub for ketamine's long-term effects.
observational cohort Sample size: 11
The systematic review found inconsistent methods and designs across psilocybin fMRI studies, with most focusing on amygdala, ACC, and prefrontal cortex, and lacking follow-up scanning timepoints.
systematic review Sample size: 20
Argues that oxytocin modulates the default mode network and down-regulates the amygdala, creating a neurochemical substrate for non-dual awareness and ego dissolution.
review
Proposes that the default mode network, through interactions with prefrontal and cerebellar regions, flexibly shifts from default to creative modes to support goal-directed remote thinking.
theoretical or philosophical paper
Lever positioning manipulation treatment was associated with relief of negative emotions and changes in brain functional connectivity, with connectivity changes in the ventral attention and default mode networks potentially linked to anxiety relief.
prospective study Sample size: 90
Argues that hypnosis reconfigures large-scale brain networks, particularly reducing default mode network activity and enhancing executive control-salience network coupling, to enable adaptive emotion regulation and reduce dissociative fragmentation.
integrative review
LSD induced global decoupling of low-frequency brain activity from anatomical constraints and frequency-selective reorganization of gamma-band activity within the default-mode network, with greater gamma decoupling predicting ego dissolution intensity.
experimental study
Points of agreement
- The default mode network is consistently implicated in self-referential processing and self-related states.
- Psychedelics (LSD, ketamine) and other interventions (hypnosis, oxytocin) modulate DMN activity, often reducing its integrity or coupling.
- DMN changes are linked to subjective experiences such as ego dissolution, self-transcendence, and creativity.
Conflicts
- The systematic review of psilocybin fMRI studies found inconsistent methods and designs, leading to mixed evidence on DMN effects.
- The ketamine study found no significant group-level increases in synaptic markers, despite DMN activity changes, suggesting variability in neuroplastic effects.
Gaps
- Most studies have small sample sizes (e.g., 11, 16, 88) and lack long-term follow-up.
- The systematic review noted a lack of follow-up scanning timepoints in psilocybin studies.
- Theoretical papers (e.g., oxytocin, hypnosis) lack direct empirical validation.
- The dream recall study is observational and does not establish causality.
- The case study of deep-sleep dreaming is based on a single individual and may not generalize.