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25 results for "Meta-analysis: What does the research say about Default mode network?"

Non-invasive brain stimulation increases default mode network functional connectivity in a patient with Posterior Cortical Atrophy.

International review of psychiatry (Abingdon, England) September 2026 Thiago Paranhos, Anna Du, Ryan Eckbo et al.

Repetitive transcranial magnetic stimulation (rTMS) has been explored as an intervention in typical amnestic Alzheimer's Disease (AD). However, its effects on episodic and associative memory in atypical forms of AD are less known. Posterior cortical atrophy (PCA) is primarily characterized by visuospatial and visuoperceptual symptoms, although significant episodic memory deficits are often...

Altered network homogeneity of the default mode network in patients with tension-type headache

Frontiers in Neurology September 1, 2026 Huan Yin, Xiaohong Guo, Yujun Gao et al.

Objective Dysfunction of the default mode network (DMN) is strongly linked to pain processing, as well as onset and progression of chronic pain disorders; however, its specific role in the pathogenesis of tension-type headache (TTH) remains incompletely understood. This study aims to explore the network homogeneity (NH) of the DMN in the pathophysiological mechanisms underlying TTH. Methods...

From Default Mode Network Dysfunction to AI-Augmented Cognitive Offloading: A Systems Framework for High-Functioning CPTSD

Zenodo (CERN European Organization for Nuclear Research) August 28, 2026 Min Jinseong

High-functioning Complex Post-Traumatic Stress Disorder (CPTSD) presents a unique neuro-psychiatric paradox:individuals demonstrate exceptional external performance, high intellectual bandwidth, and cross-domain analyticalcapacities alongside chronic hyper-arousal and affective numbing. A central physiological driver of this condition is thestructural dysfunction of the Default Mode Network...

Default Mode Network (DMN) for Human Five Senses and Sensory Environments

Asploro Journal of Biomedical and Clinical Case Reports August 18, 2026 Hiroshi Bando, Akiyo Yoshioka, Yu Nishikiori et al.

The default mode network (DMN) plays a crucial role in sensory perception. The primary roles of the DMN include preparing for crises, predicting future events, and organizing information and memories. It comprises brain regions such as the medial prefrontal cortex, posterior cingulate cortex, precuneus, and inferior parietal lobule. For the five senses, including visual, auditory, olfactory,...

Self-esteem gates the coupling between cultural estrangement and the default mode network

Scientific Reports August 15, 2026 Morio Aki, Naoya Oishi, Sayaka Yoshimura et al.

Increasing multiculturalism and globalization have increased the discrepancies between socially-shared norms and personal values. This study examined whether the association between Cultural Estrangement (CE) and resting-state functional connectivity (FC) of the default mode network (DMN) is moderated by self-esteem (SE). In total, 170 healthy Japanese adults (20–70 years) were recruited, 70 of...

The Default Mode Network as a Pathological Attractor State: A Hypothesis on Self-Reinforcing Cognitive Loops, Contaminated Baselines, and Implications for Human Health and Consciousness

Zenodo (CERN European Organization for Nuclear Research) August 7, 2026 Parviz Khataee

The Default Mode Network (DMN) has been characterized since its formal description in 2001 as a resting-state network subserving autobiographical memory, social cognition, and prospective thinking. This paper challenges the foundational interpretive assumption of that characterization: that adult human DMN activity constitutes a normal or optimal cognitive baseline. We propose that the DMN, as...

20 years of the default mode network: A review and synthesis

Neuron May 10, 2023 Vinod Menon 832 citations

The discovery of the default mode network (DMN) has revolutionized our understanding of the workings of the human brain. Here, I review developments that led to the discovery of the DMN, offer a personal reflection, and consider how our ideas of DMN function have evolved over the past two decades. I summarize literature examining the role of the DMN in self-reference, social cognition, episodic...

The default mode network in cognition: a topographical perspective

Nature reviews. Neuroscience July 5, 2021 Jonathan Smallwood, Boris C. Bernhardt, Robert Leech et al. 970 citations

The default mode network (DMN) is a set of widely distributed brain regions in the parietal, temporal and frontal cortex. These regions often show reductions in activity during attention-demanding tasks but increase their activity across multiple forms of complex cognition, many of which are linked to memory or abstract thought. Within the cortex, the DMN has been shown to be located in regions...

The Brain's Default Mode Network

Annual Review of Neuroscience May 4, 2015 Marcus E. Raichle 4,082 citations

The brain's default mode network consists of discrete, bilateral and symmetrical cortical areas, in the medial and lateral parietal, medial prefrontal, and medial and lateral temporal cortices of the human, nonhuman primate, cat, and rodent brains. Its discovery was an unexpected consequence of brain-imaging studies first performed with positron emission tomography in which various novel,...

The salience network is responsible for switching between the default mode network and the central executive network: Replication from DCM

Neuroimage May 24, 2014 Nia Goulden, Aygul Khusnulina, Nicholas J. Davis et al. 828 citations

With the advent of new analysis methods in neuroimaging that involve independent component analysis (ICA) and dynamic causal modelling (DCM), investigations have focused on measuring both the activity and connectivity of specific brain networks. In this study we combined DCM with spatial ICA to investigate network switching in the brain. Using time courses determined by ICA in our dynamic...

The entropic brain: a theory of conscious states informed by neuroimaging research with psychedelic drugs

Frontiers in Human Neuroscience 2014 Robin Carhart-Harris, Robert Leech, Peter J. Hellyer et al. 1,289 citations

Entropy is a dimensionless quantity that is used for measuring uncertainty about the state of a system but it can also imply physical qualities, where high entropy is synonymous with high disorder. Entropy is applied here in the context of states of consciousness and their associated neurodynamics, with a particular focus on the psychedelic state. The psychedelic state is considered an exemplar...

Default Mode Network Activity and Connectivity in Psychopathology

Annual Review of Clinical Psychology March 29, 2012 Susan Whitfield-Gabrieli, Judith M. Ford 1,485 citations

Neuropsychiatric disorders are associated with abnormal function of the default mode network (DMN), a distributed network of brain regions more active during rest than during performance of many attention-demanding tasks and characterized by a high degree of functional connectivity (i.e., temporal correlations between brain regions). Functional magnetic resonance imaging studies have revealed...

Neural correlates of the psychedelic state as determined by fMRI studies with psilocybin

Proceedings of the National Academy of Sciences January 23, 2012 Alessandro Colasanti, Robin J. Tyacke, Robert Leech et al. 1,191 citations

Psychedelic drugs have a long history of use in healing ceremonies, but despite renewed interest in their therapeutic potential, we continue to know very little about how they work in the brain. Here we used psilocybin, a classic psychedelic found in magic mushrooms, and a task-free functional MRI (fMRI) protocol designed to capture the transition from normal waking consciousness to the...

On the relationship between the “default mode network” and the “social brain”

Frontiers in Human Neuroscience 2012 Rogier B. Mars, Franz-Xaver Neubert, MaryAnn P. Noonan et al. 807 citations

The default mode network (DMN) of the brain consists of areas that are typically more active during rest than during active task performance. Recently however, this network has been shown to be activated by certain types of tasks. Social cognition, particularly higher-order tasks such as attributing mental states to others, has been suggested to activate a network of areas at least partly...

Meditation experience is associated with differences in default mode network activity and connectivity

Proceedings of the National Academy of Sciences November 23, 2011 Judson A. Brewer, Patrick D. Worhunsky, Jeremy R. Gray et al. 1,410 citations

Many philosophical and contemplative traditions teach that "living in the moment" increases happiness. However, the default mode of humans appears to be that of mind-wandering, which correlates with unhappiness, and with activation in a network of brain areas associated with self-referential processing. We investigated brain activity in experienced meditators and matched meditation-naive...

Patterns of Brain Activity Supporting Autobiographical Memory, Prospection, and Theory of Mind, and Their Relationship to the Default Mode Network

Journal of Cognitive Neuroscience July 6, 2009 R. Nathan Spreng, Cheryl L. Grady 1,023 citations

The ability to rise above the present environment and reflect upon the past, the future, and the minds of others is a fundamentally defining human feature. It has been proposed that these three self-referential processes involve a highly interconnected core set of brain structures known as the default mode network (DMN). The DMN appears to be active when individuals are engaged in...

The precuneus/posterior cingulate cortex plays a pivotal role in the default mode network: Evidence from a partial correlation network analysis

Neuroimage June 13, 2008 Peter Fransson, Guillaume Marrelec 1,236 citations

Recent research has shown that intrinsic brain activity as observed by functional magnetic resonance imaging (fMRI) manifest itself as coherent signal changes in networks encompassing brain regions that span long-range neuronal pathways. One of these networks, the so called default mode network, has become the primary target in recent investigations to link intrinsic activity to cognition and...

Resting-State Functional Connectivity Reflects Structural Connectivity in the Default Mode Network

Cerebral Cortex April 9, 2008 Michael D. Greicius, Kaustubh Supekar, V. Menon et al. 2,227 citations

Resting-state functional connectivity magnetic resonance imaging (fcMRI) studies constitute a growing proportion of functional brain imaging publications. This approach detects temporal correlations in spontaneous blood oxygen level-dependent (BOLD) signal oscillations while subjects rest quietly in the scanner. Although distinct resting-state networks related to vision, language, executive...

Functional connectivity of default mode network components: Correlation, anticorrelation, and causality

Human Brain Mapping January 24, 2008 Lucina Q. Uddin, A.M. Clare Kelly, Bharat B. Biswal et al. 1,198 citations

The default mode network (DMN), based in ventromedial prefrontal cortex (vmPFC) and posterior cingulate cortex (PCC), exhibits higher metabolic activity at rest than during performance of externally oriented cognitive tasks. Recent studies have suggested that competitive relationships between the DMN and various task-positive networks involved in task performance are intrinsically represented...

Meditation experience is associated with increased cortical thickness

Neuroreport November 7, 2005 Sara W. Lazar, Catherine E. Kerr, Rachel H. Wasserman et al. 1,707 citations

Previous research indicates that long-term meditation practice is associated with altered resting electroencephalogram patterns, suggestive of long lasting changes in brain activity. We hypothesized that meditation practice might also be associated with changes in the brain's physical structure. Magnetic resonance imaging was used to assess cortical thickness in 20 participants with extensive...