Page 2 of 4: studies 21 to 40 of 79, newest first. Back to the default mode network overview
bioRxiv (Cold Spring Harbor Laboratory) August 15, 2023 Valeria Oliva, Gabriel Riegner, Jon G Dean et al. 1 citation preprint
The authors discovered an error in the primary analysis and have withdrawn the results from this version of the investigation.
Drug and Alcohol Dependence August 11, 2023 Teuntje A. D. Pelgrim, Johannes G. Ramaekers, Matthew B. Wall et al. 3 citations
BACKGROUND: Cannabis produces various acute psychotropic effects, with marked individual differences. Cannabis use is a risk factor for developing psychotic disorders. The main component responsible for these effects is Δ9-tetrahydrocannabinol (THC). Here we investigated the neural basis of acute THC effects and its modulation by catechol-methyl-transferase (COMT) Val158Met genotype. METHODS:...
Journal of Education, Health and Sport August 8, 2023 Anna Jaremek, Joanna Kępa, Norbert Kandefer et al.
In this review paper, we delve into the potential applicability of psilocybin - a naturally synthesized psychedelic substance found within select species of fungi, as a prospective avenue for depression treatment. Depression, a widespread psychological malady affecting countless individuals across the globe, often proves stubborn against existing treatment modalities, necessitating exploration...
Cerebral Cortex August 1, 2023 Feifei Zhang, Bo Liu, Yinbo Shao et al.
Aluminum (Al) is an important environmental pathogenic factor for neurodegenerative diseases, especially mild cognitive impairment (MCI). The aim of this study was to evaluate the gray matter volume of structural covariance network alterations in patients with Al-induced MCI. Male subjects who had been exposed to Al for >10 years were included in the present study. The plasma Al concentration,...
Cortex August 2023 Rebecca L Jackson, Gina F. Humphreys, Grace E Rice et al.
Resting-state network research is extremely influential, yet the functions of many networks remain unknown. In part, this is due to typical (e.g., univariate) analyses independently testing the function of individual regions and not examining the full set of regions that form a network whilst co-activated. Connectivity is dynamic and the function of a region may change based on its current...
British Journal of Psychology August 1, 2023 Nuria Victoria Aguerre, Carlos Javier Gómez-Ariza, Antonio José Ibáñez-Molina et al.
While growing evidence supports that dispositional mindfulness relates to psychological health and cognitive enhancement, to date there have been only a few attempts to characterize its neural underpinnings. In the present study, we aimed at exploring the electrophysiological (EEG) signature of dispositional mindfulness using quantitative and complexity measures of EEG during resting state and...
Journal of Psychopharmacology July 29, 2023 Natalie Ertl, Will Lawn, Claire Mokrysz et al. 17 citations
BACKGROUND/AIM: Cannabis use is highly prevalent in adolescents; however, little is known about its effects on adolescent brain function. METHOD: = 70, 35 adolescents/35 adults). Pre-registered analyses examined the connectivity of seven major cortical and sub-cortical brain networks (default mode network, executive control network (ECN), salience network, hippocampal network and three striatal...
Biological Psychiatry: Cognitive Neuroscience and Neuroimaging July 17, 2023 Flora Moujaes, Nathalie M. Rieser, Christophe Phillips et al. 19 citations
BACKGROUND: Pharmacological and nonpharmacological methods of inducing altered states of consciousness (ASCs) are becoming increasingly relevant in the treatment of psychiatric disorders. While comparisons between them are often drawn, to date no study has directly compared their neural correlates. METHODS: To address this knowledge gap, we directly compared 2 pharmacological methods...
Behavioral and Brain Functions July 15, 2023 Yidi Chen, Jinjin Ma, Huanya Zhu et al.
Stressful events and meaning-making toward them play an important role in adolescents' life and growth. However, ignoring positive stressful events leads to negativity bias; further, the neural mechanisms of meaning-making are unclear. We aimed to verify the mediating role of meaning-making in stressful events and stress-related growth and the function of the default mode network (DMN) during...
Cerebral Cortex July 15, 2023
Abstract The default mode network is essential for higher-order cognitive processes and is composed of an extensive network of functional and structural connections. Early in fetal life, the default mode network shows strong connectivity with other functional networks; however, the association with structural development is not well understood. In this study, resting-state functional magnetic...
Journal of the Association for Research in Otolaryngology : JARO July 12, 2023 Binbin Xiong, Zhao Liu, Jiahong Li et al.
Background: Previous studies have demonstrated that tinnitus is associated with neural changes in the cerebral cortex. This study is aimed at investigating the central nervous characteristics of tinnitus patients with different severity by using a rs-EEG. Participants and methods: rs-EEG was recorded in fifty-seven patients with chronic tinnitus and twenty-seven healthy controls. Tinnitus...
Frontiers in Psychiatry July 6, 2023 Niklaus Denier, Leila M. Soravia, Franz Moggi et al.
Background: Increased mindfulness is associated with reduced alcohol consumption in patients with alcohol use disorder (AUD) after residential treatment. However, the underlying neurobiological mechanism of mindfulness in AUD is unclear. Therefore, we investigate the structural and functional alterations of the thalamocortical system with a focus on the mediodorsal thalamic nucleus (MD-TN), the...
Mindfulness July 1, 2023 Kanishka Sharma, Peter Achermann, Bhawna Panwar et al. 12 citations
Objectives The objective was to analyze EEG recorded during Brahma Kumaris Rajyoga meditation (BKRYM) using eLORETA applied in the frequency domain for localizing sources during meditation vis-à-vis baseline condition. Unlike many other popular meditation practices, BKRYM is practiced with open eyes. To our knowledge, there has been no study of the changes in the brain’s activity during the...
The Journal of Humanities and Social sciences 21 June 30, 2023 Jung‐Soon Moon
연구 목적: 이 연구는 노화과정에서 기본모드연결망의 비효율적인 기능으로 인한 인지저하를 예방하고 인지기능을 향상시키기 위한 명상의 역할을 고찰하고자 한다.연구 방법: 연구방법은 노화와 정신질환과의 관계, 과제관련 연결망과 기본모드 연결망의 기능 및 역할 상호 관련성 그리고 명상의 역할에 대한 문헌조사를 하였다.연구 내용: 이 논문의 연구내용은 기본모드연결망이 고차적인 인지기능을 수행하지만 과제와 관련된 작업을 수행할 때는 기본모드연결망을 억제할 수 있어야 한다. 하지만 노화과정에서 이러한 억제가 감소되면서 노인의 정신건강상태가 위협을 받게 된다. 명상 수행은 노인들의 인지기능 저하를 막아줄 수 있다.결론 및 제언: 명상은 노인들의 인지저하를 늦출 수 있고, 건강한 라이프 스타일을 장려함으로써 노인들의...
Creativity Research Journal June 11, 2023 J. Peña, M. Muthalib, R. Beaty et al.
ABSTRACT Transcranial photobiomodulation (tPBM) has been used for cognitive enhancement in healthy people. However, its effect on creativity has not been investigated. The default mode network (DMN) is associated with divergent thinking (DT; but not convergent thinking, CT), and also with anxiety, which in turn has been negatively related to creativity. We aimed to use tPBM over the DMN to...
Journal of Adolescent Health June 2023 Aneesh Hehr, Edward D Huntley, Hilary A Marusak
Sleep plays an important role in healthy neurocognitive development, and poor sleep is linked to cognitive and emotional dysfunction. Studies in adults suggest that shorter sleep duration and poor sleep quality may disrupt core neurocognitive networks, particularly the default mode network (DMN)-a network implicated in internal cognitive processing and rumination. Here, we examine the...
Sleep Health June 1, 2023 Linhao Zhang, Zehua Cui, Landry Goodgame Huffman et al.
Objectives: Youth raised in stressful environments are at increased risk for developing impulsive traits, which are a robust precursor of problem behaviors. Sleep may mediate the link between stress and problem behaviors as it is both sensitive to stress and essential for neurocognitive development underlying behavioral control during adolescence. The default mode network (DMN) is a brain...
Molecular Psychiatry June 1, 2023 Jiahe Zhang, Jovicarole Raya, Francesca Morfini et al. 65 citations
Adolescents experience alarmingly high rates of major depressive disorder (MDD), however, gold-standard treatments are only effective for ~50% of youth. Accordingly, there is a critical need to develop novel interventions, particularly ones that target neural mechanisms believed to potentiate depressive symptoms. Directly addressing this gap, we developed mindfulness-based fMRI neurofeedback...
European Journal of Pain May 31, 2023 Najah Alhajri, Shellie Ann Boudreau, André Mouraux et al.
Background: Alterations in the default mode network (DMN) connectivity across pain stages suggest a possible DMN involvement in the transition to persistent pain. Aim: This study examined whether pain-free DMN connectivity at lower alpha oscillations (8-10 Hz) accounts for a unique variation in experimental peak pain intensity beyond the contribution of factors known to influence pain...
Elife May 25, 2023 Godber M Godbersen, Sebastian Klug, Wolfgang Wadsak et al.
External tasks evoke characteristic fMRI BOLD signal deactivations in the default mode network (DMN). However, for the corresponding metabolic glucose demands both decreases and increases have been reported. To resolve this discrepancy, functional PET/MRI data from 50 healthy subjects performing Tetris were combined with previously published data sets of working memory, visual and motor...