Developmental Cognitive Neuroscience
February 17, 2023
Jake J Son, Mikki Schantell, Giorgia Picci et al.
The default mode network (DMN) plays a crucial role in internal self-processing, rumination, and social functions. Disruptions to DMN connectivity have been linked with early adversity and the emergence of psychopathology in adolescence and early adulthood. Herein, we investigate how subclinical psychiatric symptoms can impact DMN functional connectivity during the pubertal transition....
Nature Communications
February 16, 2023
Vinod Menon, Domenic Cerri, Byeongwook Lee et al.
The salience network (SN) and default mode network (DMN) play a crucial role in cognitive function. The SN, anchored in the anterior insular cortex (AI), has been hypothesized to modulate DMN activity during stimulus-driven cognition. However, the causal neural mechanisms underlying changes in DMN activity and its functional connectivity with the SN are poorly understood. Here we combine...
Science Advances
February 15, 2023
Tzu-Hao Harry Chao, Byeongwook Lee, Li-Ming Hsu et al.
The default mode network (DMN) is critical for self-referential mental processes, and its dysfunction is implicated in many neuropsychiatric disorders. However, the neurophysiological properties and task-based functional organization of the rodent DMN are poorly understood, limiting its translational utility. Here, we combine fiber photometry with functional magnetic resonance imaging (fMRI)...
Frontiers in Neuroscience
February 9, 2023
Lin-Chien Lee, Ya-Yun Chen, Wei-Chi Li et al.
Introduction Primary dysmenorrhea (PDM), the most prevalent gynecological problem among women of reproductive age, presents as a regular pattern of cyclic menstrual pain. The presence or absence of central sensitization (i.e., pain hypersensitivity) in cases of PDM is a contentious issue. Among Caucasians, the presence of dysmenorrhea is associated with pain hypersensitivity throughout the...
Human Brain Mapping
February 1, 2023
Dan Yang, Jiangnan Li, Zhi-Hong Ke et al.
Functional changes of default mode network (DMN) have been proven to be closely associated with white matter hyperintensity (WMH) related cognitive impairment (CI). However, subsystem mechanisms of DMN underlying WMH‐related CI remain unclear. The present study recruited WMH patients (n = 206) with mild CI and normal cognition, as well as healthy controls (HC, n = 102). Static/dynamic...
Brain Imaging and Behavior
February 2023
Long Jin, Menghui Yuan, Wei Zhang et al.
Repetitive transcranial magnetic stimulation (rTMS) over the left dorsolateral prefrontal cortex (DLPFC) has been shown to reduce cravings in heroin-dependent (HD) individuals, but the mechanisms underlying the anti-craving effects of rTMS are unknown. Abnormalities in the default mode network (DMN) are known to be consistent findings in HD individuals and are involved in cravings. We assessed...
bioRxiv (Cold Spring Harbor Laboratory)
January 3, 2023
Saampras Ganesan, Bradford A. Moffat, Nicholas T. van Dam et al.
1 citation
preprint
Abstract Objectives Mapping the neurobiology of meditation using 3 Tesla functional MRI (fMRI) has burgeoned recently. However, limitations in signal quality and neuroanatomical resolution have impacted reliability and precision of extant findings. Although ultra-high strength 7 Tesla MRI overcomes these limitations, investigation of meditation using 7 Tesla fMRI is still in its infancy....
Psychiatry Investigation
2023
Young-woo Ko, S. Kim, K. Kang et al.
Objective Aerobic exercise may be associated with changes in brain activity within the default mode network (DMN) and dorsal attention network (DAN). We hypothesized that changes in functional connectivity (FC) within the DMN and DAN might be most effectively activated by moderate-intensity exercise. Methods Resting-state functional magnetic resonance imaging scans and visuospatial attention...
Frontiers in Behavioral Neuroscience
2023
Maria Picó Pérez, Ricardo Magalhães, Madalena Esteves et al.
Habitual coffee consumers justify their life choices by arguing that they become more alert and increase motor and cognitive performance and efficiency; however, these subjective impressions still do not have a neurobiological correlation. Using functional connectivity approaches to study resting-state fMRI data in a group of habitual coffee drinkers, we herein show that coffee consumption...
Creativity Research Journal
2023
William Orwig, Ibai Diez, Elisenda Bueichekú et al.
Studies suggest that internally oriented cognitive processes are central to creativity. Here, we distinguish between intentional and unintentional forms of mind wandering and explore their behavioral and neural correlates. We used a sample of 155 healthy adults from the mind-brain-body dataset, all of whom completed resting-state fMRI scans and trait-level measures of mind wandering. We...
Frontiers in Human Neuroscience
2023
Julia C. Harris, Michael T Liuzzi, Carlos Cardenas-Iniguez et al.
Aspects of the built environment relate to health factors and equity in living conditions, and may contribute to racial, ethnic, or economic health disparities. For example, urbanicity is linked with negative factors including exposure to gray space (e.g., impervious surfaces such as concrete, streets, or rooftops). While there is existing research on access to green space and urbanicity on...
Frontiers in Neuroscience
2023
Mengqi Zhao, Zeqi Hao, Mengting Li et al.
Irritable bowel syndrome (IBS) is a brain-gut disorder with high global prevalence, resulting from abnormalities in brain connectivity of the default mode network and aberrant changes in gray matter (GM). However, the findings of previous studies about IBS were divergent. Therefore, we conducted a meta-analysis to identify common functional and structural alterations in IBS patients....
Frontiers in Neuroscience
2023
Maira Inderyas, Kiran Thapaliya, Sonya Marshall-Gradisnik et al.
Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a complex chronic condition with core symptoms of fatigue and cognitive dysfunction, suggesting a key role for the central nervous system in the pathophysiology of this disease. Several studies have reported altered functional connectivity (FC) related to motor and cognitive deficits in ME/CFS patients. In this study, we compared...
Transactions of the Japan Academy
2023
Naoyuki Osaka
Meditation in Zen has received much attention in the scientific exploration of consciousness from metacognition and the social brain. Zen meditation provides effective clues to self-knowledge by providing awareness of “present self-being”. Our brains are thought to operate in dynamic equilibrium every day with two broad networks: the working memory network (WMN), which is oriented toward...
Explore
2023
Marjorie Woollacott, Anne Shumway-Cook, Natasha Tassell-Matamua
Research suggests that worldviews define our relationship to the environment, including our responsibility to the environment and our planet. This paper examines two specific worldviews and their potential environmental impact: the materialist worldview, considered to be the dominant worldview of Western society, and the so-called post-materialist worldview. We believe that changing the...
Journal of Psychopathology and Clinical Science
2023
Ceci Westbrook, Janine M. Dutcher, Susan Kusmierski et al.
7 citations
Uncontrollable worry is a hallmark of generalized anxiety disorder and a transdiagnostic feature of psychopathology. Mindfulness-based strategies show promise for treating worry, but it is unknown which specific strategies are most beneficial, and how these skills might operate on a neurobiological level. We recruited 40 participants with clinically significant worry to undergo functional...
Advances in experimental medicine and biology
2023
Dimitrios Zagkas, Flora Bacopoulou, Dimitrios Vlachakis et al.
This article provides a systematic review of studies evaluating the effect of meditation on the Default Mode Network (DMN). The review was conducted according to PRISMA guidelines. A literature search of PubMed, Scopus, and Embase was conducted up to June 2020. Search terms included default mode network or DMN and meditation.A total of 306 articles were identified, of which 16 controlled trials...
Explore
2023
Marjorie Woollacott, Anne Shumway-Cook, John Renesch
Scientists have spent considerable time and effort studying and mapping the geography of the brain, with the expectation that this understanding will lead to insights related to the nature of the mind. This article discusses evidence that, while the mind utilizes sensory information processed by the brain, awareness is not limited to these structures. Research studies give evidence supporting...
Neuroscience of Consciousness
2023
Lena Lindström, Philippe R. Goldin, Johan Mårtensson et al.
12 citations
Alterations of the sense of self induced by meditation include an increased sense of boundarylessness. In this study, we investigated behavioural and functional magnetic resonance imaging correlates of trait self-boundarylessness during resting state and the performance of two experimental tasks. We found that boundarylessness correlated with greater self-endorsement of words related to...