Frontiers in Behavioral Neuroscience
December 23, 2024
Aldrich Chan, Philip D. Harvey, R Hernandez-Cardenache et al.
9 citations
While PTSD continues to be researched in great depth, less attention has been given to the continuum of traumatic responses that resides outside this diagnosis. This investigation begins with a literature review examining the spectrum of responses through the lens of the default mode network (DMN). To build upon this literature, a systematic exploratory study was incorporated, examining...
Imaging Neuroscience
December 19, 2024
Jordan E. Pierce, Gagan S. Wig, Nicholas R. Harp et al.
Abstract The brain is organized into intrinsically connected functional networks that can be reliably identified during resting-state functional magnetic resonance imaging (fMRI). Healthy aging is marked by decreased network segregation, which is linked to worse cognitive functioning, but aging-related changes in emotion are less well characterized. Valence bias, which represents the tendency...
Alzheimer s & Dementia
December 1, 2024
Allen TC Lee
AbstractBackgroundWe previously reported that increasing participation in Chinese calligraphy handwriting, one of the “Four Arts” traditionally mastered by intellectuals in China and currently widely practiced by older adults in the Chinese community, led to better working memory among individuals with subjective cognitive decline (but without mild or major neurocognitive disorder). Given that...
Alzheimer's & Dementia
November 19, 2024
L. Cui, Zhen Zhang, You‐Yi Tu et al.
It remains unclear whether the local amyloid‐beta (Aβ) burden in key regions within the default mode network (DMN) affects network and cognitive functions.
Biological Psychiatry Global Open Science
November 1, 2024
Dhakshin Ramanathan, Jason Nan, Gillian Grennan et al.
10 citations
Interoceptive attention to internal sensory signals, such as the breath, is fundamental to mindfulness. However, interoceptive attention can be difficult to study, with many studies relying on subjective and retrospective measures. Response consistency is an established method for evaluating variability of attention on exteroceptive attention tasks, but it has rarely been applied to...
Brain and Cognition
October 30, 2024
Nicola Sambuco
The Default Mode Network (DMN) is increasingly recognized as a key hub where cognitive and emotional processes converge, particularly through its role in integrating episodic memory and emotional experiences. The current mini-review highlights three distinct patterns of brain activity within the DMN associated with emotional processing. The first pattern indicates that, while the ventromedial...
Imaging Neuroscience
October 22, 2024
Hongkeun Kim
Abstract Recent meta-analytic evidence has underscored the significant role of the default mode network (DMN) in facilitating item word encoding. This study builds on this finding through a comprehensive meta-analysis of fMRI-based subsequent memory studies that use words as stimuli. The results highlight several key functions within the DMN. Firstly, the dorsomedial prefrontal cortex (dmPFC)...
Communications Biology
September 30, 2024
Pablo Castro, Andrea I. Luppi, Enzo Tagliazucchi et al.
21 citations
Resting-state functional magnetic resonance imaging evolves through a repertoire of functional connectivity patterns which might reflect ongoing cognition, as well as the contents of conscious awareness. We investigated whether the dynamic exploration of these states can provide robust and generalizable markers for the state of consciousness in human participants, across loss of consciousness...
Psychedelics
September 24, 2024
Xi Zhu, Chen Zhang, David J Hellerstein et al.
6 citations
Body dysmorphic disorder (BDD) is a severe psychiatric condition characterized by preoccupation with perceived flaws in one's appearance, which the individual views as defective or ugly. Psilocybin, a serotonin 2A receptor agonist with psychedelic properties, has emerged as a potential therapeutic agent for depression and other psychiatric disorders. This study aimed to identify subacute neural...
bioRxiv : the preprint server for biology
September 15, 2024
Isaac N Treves, Keara D Greene, Zia Bajwa et al.
7 citations
preprint
Neurofeedback concurrent with mindfulness meditation may reveal meditation effects on the brain and facilitate improved mental health outcomes. Here, we systematically reviewed EEG and fMRI studies of mindfulness meditation with neurofeedback (mbNF) and followed PRISMA guidelines. We identified 10 fMRI reports, consisting of 177 unique participants, and 9 EEG reports, consisting of 242...
Frontiers in Psychology
September 4, 2024
A. Menardi, M. Spoa, A. Vallesi
IntroductionWhile traditional neuroimaging approaches to the study of executive functions (EFs) have typically employed task-evoked paradigms, resting state studies are gaining popularity as a tool for investigating inter-individual variability in the functional connectome and its relationship to cognitive performance outside of the scanner.MethodUsing resting state functional magnetic...
Brain Connectivity
September 1, 2024
Vanessa Scarapicchia, Heather Kwan, Alexis Czippel et al.
Background: Resting-state fMRI analyses have been used to examine functional connectivity in the aging brain. Recently, fluctuations in the fMRI BOLD signal have been used as a potential marker of integrity in neural systems. Despite its increasing popularity, the results of BOLD variability analyses and traditional seed-based functional connectivity analyses have rarely been compared. The...
Journal of Pain
September 1, 2024
Emily P Mills, Rachael L Bosma, Anton Rogachov et al.
5 citations
Neuropathic pain (NP) is a prevalent condition often associated with heightened pain responsiveness suggestive of central sensitization. Neuroimaging biomarkers of treatment outcomes may help develop personalized treatment strategies, but white matter (WM) properties have been underexplored for this purpose. Here we assessed whether WM pathways of the default mode network (DMN: medial...
Proceedings on CD-ROM - International Society for Magnetic Resonance in Medicine. Scientific Meeting and Exhibition/Proceedings of the International Society for Magnetic Resonance in Medicine, Scientific Meeting and Exhibition
August 14, 2024
Frederick A. Bagdasarian, Hanne D. Hansen, Chi‐hyeon Yoo et al.
This work utilized fMRI to assess the influence of the psychedelics, Psilocybin, a serotonergic agonist, and Salvinorin-A, a kappa-opioid receptor (KOR) agonist, on functional connectivity (FC) in non-human primates. We used a seed-based FC analysis, probing regions of interest associated with psychedelic hallucinogens. Our findings highlight the overlapping and differing influence of these...
Neuroreport
August 7, 2024
Ping-Hong Lai, Rui-Yang Hu, Xin Huang
Thyroid-associated ophthalmopathy (TAO) is a significant autoimmune eye disease known for causing exophthalmos and substantial optic nerve damage. Prior investigations have solely focused on static functional MRI (fMRI) scans of the brain in TAO patients, neglecting the assessment of temporal variations in local brain activity. This study aimed to characterize alterations in dynamic regional...
Progress in Neuro-Psychopharmacology and Biological Psychiatry
August 1, 2024
Shengjie Xu, Kezhen Lv, Yuqi Sun et al.
BACKGROUND Obesity, characterized by excessive adiposity, is associated with brain structural abnormalities. Nevertheless, the relationships between altered structural node of default mode network (DMN), body mass index (BMI), general cognitive ability remained unclear in young adults. METHODS In this study, we divided a large sample of young adults into three BMI-based groups. We then...
Brain Connectivity
August 1, 2024
Clara G. Zundel, Samantha L Ely, Cole Brokamp et al.
Background: Air pollution exposure has been associated with adverse cognitive and mental health outcomes in children, adolescents, and adults, although youth may be particularly susceptible given ongoing brain development. However, the neurodevelopmental mechanisms underlying the associations among air pollution, cognition, and mental health remain unclear. We examined the impact of particulate...
Biological Psychiatry: Cognitive Neuroscience and Neuroimaging
August 1, 2024
Xuefeng Xu, Xuefeng Ma, Haosen Ni et al.
14 citations
Internet gaming disorder (IGD) can lead to psychological problems and cause behavioral problems in individuals. Traditional interventions have been ineffective in treating IGD. Meanwhile, mindfulness meditation (MM) is an emerging method that has proven to be effective for treating psychiatric disorders. In this study, MM was used to intervene in IGD and to explore its neural mechanism. Eighty...
Neuroscience & Biobehavioral Reviews
August 1, 2024
Marina Weiler, David J Acunzo, Philip J. Cozzolino et al.
10 citations
Out-of-body experiences (OBEs) are subjective phenomena during which individuals feel disembodied or perceive themselves as outside of their physical bodies, often resulting in profound and transformative effects. In particular, experiencers report greater heightened pro-social behavior, including more peaceful relationships, tolerance, and empathy. Drawing parallels with the phenomenon of ego...
Communications Biology
July 23, 2024
Yilei Zhao, Tobias Kirschenhofer, Michael Harvey et al.
Humans and other animals readily transition from externally to internally focused attention, and these transitions are accompanied by activation of the default mode network (DMN). The DMN was considered a cortical network, yet recent evidence suggests subcortical structures are also involved. We investigated the role of ventral pallidum (VP) and mediodorsal thalamus (MD) in DMN regulation in...