keyword
Keywords resting-state functional magne...

resting-state functional magnetic resonance imaging

https://read.qxmd.com/read/38532313/classification-of-cognitive-ability-of-healthy-older-individuals-using-resting-state-functional-connectivity-magnetic-resonance-imaging-and-an-extreme-learning-machine
#1
JOURNAL ARTICLE
Shiying Zhang, Manling Ge, Hao Cheng, Shenghua Chen, Yihui Li, Kaiwei Wang
BACKGROUND: Quantitative determination of the correlation between cognitive ability and functional biomarkers in the older brain is essential. To identify biomarkers associated with cognitive performance in the older, this study combined an index model specific for resting-state functional connectivity (FC) with a supervised machine learning method. METHODS: Performance scores on conventional cognitive test scores and resting-state functional MRI data were obtained for 98 healthy older individuals and 90 healthy youth from two public databases...
March 26, 2024: BMC Medical Imaging
https://read.qxmd.com/read/38531905/psilocybin-enhances-insightfulness-in-meditation-a-perspective-on-the-global-topology-of-brain-imaging-during-meditation
#2
JOURNAL ARTICLE
Singer Berit, Daniel Meling, Matthias Hirsch-Hoffmann, Lars Michels, Michael Kometer, Lukasz Smigielski, Dario Dornbierer, Erich Seifritz, Franz X Vollenweider, Milan Scheidegger
In this study, for the first time, we explored a dataset of functional magnetic resonance images collected during focused attention and open monitoring meditation before and after a five-day psilocybin-assisted meditation retreat using a recently established approach, based on the Mapper algorithm from topological data analysis. After generating subject-specific maps for two groups (psilocybin vs. placebo, 18 subjects/group) of experienced meditators, organizational principles were uncovered using graph topological tools, including the optimal transport (OT) distance, a geometrically rich measure of similarity between brain activity patterns...
March 26, 2024: Scientific Reports
https://read.qxmd.com/read/38531165/enigma-s-simple-seven-recommendations-to-enhance-the-reproducibility-of-resting-state-fmri-in-traumatic-brain-injury
#3
REVIEW
Karen Caeyenberghs, Phoebe Imms, Andrei Irimia, Martin M Monti, Carrie Esopenko, Nicola L de Souza, Juan F Dominguez D, Mary R Newsome, Ekaterina Dobryakova, Andrew Cwiek, Hollie A C Mullin, Nicholas J Kim, Andrew R Mayer, Maheen M Adamson, Kevin Bickart, Katherine M Breedlove, Emily L Dennis, Seth G Disner, Courtney Haswell, Cooper B Hodges, Kristen R Hoskinson, Paula K Johnson, Marsh Königs, Lucia M Li, Spencer W Liebel, Abigail Livny, Rajendra A Morey, Alexandra M Muir, Alexander Olsen, Adeel Razi, Matthew Su, David F Tate, Carmen Velez, Elisabeth A Wilde, Brandon A Zielinski, Paul M Thompson, Frank G Hillary
Resting state functional magnetic resonance imaging (rsfMRI) provides researchers and clinicians with a powerful tool to examine functional connectivity across large-scale brain networks, with ever-increasing applications to the study of neurological disorders, such as traumatic brain injury (TBI). While rsfMRI holds unparalleled promise in systems neurosciences, its acquisition and analytical methodology across research groups is variable, resulting in a literature that is challenging to integrate and interpret...
March 5, 2024: NeuroImage: Clinical
https://read.qxmd.com/read/38531160/alteration-in-left-frontoparietal-connectivity-correlates-with-impaired-cognitive-reappraisal-in-early-psychosis
#4
JOURNAL ARTICLE
Silvia Kyungjin Lho, Taekwan Kim, Sun-Young Moon, Minah Kim, Jun Soo Kwon
BACKGROUND: Impaired cognitive reappraisal is a notable symptom of early psychosis, but its neurobiological basis remains underexplored. We aimed to identify the underlying neurobiological mechanism of this impairment by using resting-state functional connectivity (FC) analyses focused on brain regions related to cognitive reappraisal. METHODS: Resting-state functional magnetic resonance images were collected from 36 first-episode psychosis (FEP) patients, 32 clinical high-risk (CHR) individuals, and 48 healthy controls (HCs)...
March 25, 2024: Schizophrenia Research
https://read.qxmd.com/read/38530417/fractional-amplitude-of-low-frequency-fluctuation-alterations-in-patients-with-cervical-spondylotic-myelopathy-a-resting-state-fmri-study
#5
JOURNAL ARTICLE
Kaifu Wu, Han Li, Yuanliang Xie, Shutong Zhang, Xiang Wang
PURPOSE: We sought to use the fractional amplitude of low-frequency fluctuation (fALFF) method to investigate the changes in spontaneous brain activity in CSM patients and their relationships with clinical features. METHODS: We recruited 20 patients with CSM, and 20 healthy controls (HCs) matched for age, sex, and education status. The fALFF method was used to evaluate the altered spontaneous brain activities. The Pearson correlation analysis of fALFF and the clinical features were carried out...
March 26, 2024: Neuroradiology
https://read.qxmd.com/read/38529038/epilepsy-related-functional-brain-network-alterations-are-already-present-at-an-early-age-in-the-gaers-rat-model-of-genetic-absence-epilepsy
#6
JOURNAL ARTICLE
Lydia Wachsmuth, Leo Hebbelmann, Jutta Prade, Laura C Kohnert, Henriette Lambers, Annika Lüttjohann, Thomas Budde, Andreas Hess, Cornelius Faber
INTRODUCTION: Genetic Absence Epilepsy Rats from Strasbourg (GAERS) represent a model of genetic generalized epilepsy. The present longitudinal study in GAERS and age-matched non-epileptic controls (NEC) aimed to characterize the epileptic brain network using two functional measures, resting state-functional magnetic resonance imaging (rs-fMRI) and manganese-enhanced MRI (MEMRI) combined with morphometry, and to investigate potential brain network alterations, following long-term seizure activity...
2024: Frontiers in Neurology
https://read.qxmd.com/read/38528280/combined-brain-topological-metrics-with-machine-learning-to-distinguish-essential-tremor-and-tremor-dominant-parkinson-s-disease
#7
JOURNAL ARTICLE
Pan Xiao, Qin Li, Honge Gui, Bintao Xu, Xiaole Zhao, Hongyu Wang, Li Tao, Huiyue Chen, Hansheng Wang, Fajin Lv, Tianyou Luo, Oumei Cheng, Jin Luo, Yun Man, Zheng Xiao, Weidong Fang
BACKGROUND: Essential tremor (ET) and Parkinson's disease (PD) are the two most prevalent movement disorders, sharing several overlapping tremor clinical features. Although growing evidence pointed out that changes in similar brain network nodes are associated with these two diseases, the brain network topological properties are still not very clear. OBJECTIVE: The combination of graph theory analysis with machine learning (ML) algorithms provides a promising way to reveal the topological pathogenesis in ET and tremor-dominant PD (tPD)...
March 25, 2024: Neurological Sciences
https://read.qxmd.com/read/38527571/abnormally-decreased-functional-connectivity-of-the-right-nucleus-basalis-of-meynert-in-alzheimer-s-disease-patients-with-depression-symptoms
#8
JOURNAL ARTICLE
Ting Yang, Zhongwei Guo, Jiapeng Li, Hong Zhu, Yulin Cao, Yanping Ding, Xiaozheng Liu
Dysfunction of the basal forebrain is the main pathological feature in patients with Alzheimer's disease (AD). The aim of this study was to explore whether depressive symptoms cause changes in the functional network of the basal forebrain in AD patients. We collected MRI data from depressed AD patients (n=24), nondepressed AD patients (n=14) and healthy controls (n=20). Resting-state functional magnetic resonance imaging data and functional connectivity analysis were used to study the characteristics of the basal forebrain functional network of the three groups of participants...
March 23, 2024: Biological Psychology
https://read.qxmd.com/read/38526373/dysconnectivity-of-the-nucleus-accumbens-and-amygdala-in-youths-with-thought-problems-a-dimensional-approach
#9
JOURNAL ARTICLE
Chen-Fang Chung, Jules R Dugré, Stéphane Potvin
BACKGROUND: Youths with thought problems (TP) are at risk to develop psychosis and obsessive-compulsive disorder (OCD). Yet, the pathophysiological mechanisms underpinning TP is still unclear. Functional magnetic resonance imaging (fMRI) studies have shown that striatal and limbic alterations are associated with psychosis-like and obsessive-like symptoms in individuals at clinical risk for psychosis, schizophrenia, and OCD patients. More specifically, Nucleus accumbens (NAcc) and amygdala are mainly involved in these associations...
March 25, 2024: Brain Connectivity
https://read.qxmd.com/read/38526330/altered-brain-morphology-and-functional-connectivity-in-postmenopausal-women-automatic-segmentation-of-whole-brain-and-thalamic-subnuclei-and-resting-state-fmri
#10
JOURNAL ARTICLE
Gwang-Won Kim, Kwangsung Park, Yun-Hyeon Kim, Gwang-Woo Jeong
The transition to menopause is associated with various physiological changes, including alterations in brain structure and function. However, menopause-related structural and functional changes are poorly understood. The purpose of this study was not only to compare the brain volume changes between premenopausal and postmenopausal women, but also to evaluate the functional connectivity between the targeted brain regions associated with structural atrophy in postmenopausal women. Each 21 premenopausal and postmenopausal women underwent magnetic resonance imaging (MRI)...
March 23, 2024: Aging
https://read.qxmd.com/read/38524746/secondary-analysis-graph-analysis-of-brain-connectivity-network-in-autism-spectrum-disorder
#11
JOURNAL ARTICLE
Fatemeh Pourmotahari, Nasrin Borumandnia, Seyyed Mohammad Tabatabaei, Hamid Alavimajd
BACKGROUND: Autism spectrum disorder is a neurodevelopmental condition in which impaired connectivity of the brain network. The functional magnetic resonance imaging (fMRI) technique can provide information on the early diagnosis of autism by evaluating communication patterns in the brain. The present study aimed to assess functional connectivity (FC) variations in autism patients. MATERIALS AND METHODS: Resting-state fMRI data were obtained from the "ABIDE" website...
2024: Journal of Research in Medical Sciences: the Official Journal of Isfahan University of Medical Sciences
https://read.qxmd.com/read/38521479/association-between-aberrant-brain-activity-and-pain-in-patients-with-primary-osteoporotic-pain-aresting-state-fmri-study
#12
JOURNAL ARTICLE
Zhijie Guo, Xue Liu, Zhaoxu Yang, Chihuan Huang, Jing Liu, Lanying Liu, Yan Xu, Shaowei Liu, Daoming Xu, Jianhuai Chen
Studies have shown that chronic pain is associated with altered brain activity, while the pathological mechanism of Primary osteoporotic pain (POPP) is still unclear. MRI data and visual analogue scale (VAS) scores of 15 POPP patients and 16 HCs were collected. MRI data were preprocessed and then regional homogeneity (ReHo) and amplitude of low-frequency fluctuation (ALFF) values were calculated and compared between groups. Moreover, the correlations between ReHo and ALFF values of impaired brain regions and VAS scores were evaluated...
March 21, 2024: Neuroscience
https://read.qxmd.com/read/38520377/higher-order-functional-connectivity-analysis-of-resting-state-functional-magnetic-resonance-imaging-data-using-multivariate-cumulants
#13
JOURNAL ARTICLE
Rikkert Hindriks, Tommy A A Broeders, Menno M Schoonheim, Linda Douw, Fernando Santos, Wessel van Wieringen, Prejaas K B Tewarie
Blood-level oxygenation-dependent (BOLD) functional magnetic resonance imaging (fMRI) is the most common modality to study functional connectivity in the human brain. Most research to date has focused on connectivity between pairs of brain regions. However, attention has recently turned towards connectivity involving more than two regions, that is, higher-order connectivity. It is not yet clear how higher-order connectivity can best be quantified. The measures that are currently in use cannot distinguish between pairwise (i...
April 2024: Human Brain Mapping
https://read.qxmd.com/read/38520370/brain-based-sex-differences-in-schizophrenia-a-systematic-review-of-fmri-studies
#14
REVIEW
Mohammad Amin Salehi, Rasa Zafari, Soheil Mohammadi, Mohammad Shahrabi Farahani, Mahsa Dolatshahi, Hamid Harandi, Amirhossein Poopak, Stephen R Dager
Schizophrenia is a chronic psychiatric disorder with characteristic symptoms of delusions, hallucinations, lack of motivation, and paucity of thought. Recent evidence suggests that the symptoms of schizophrenia, negative symptoms in particular, vary widely between the sexes and that symptom onset is earlier in males. A better understanding of sex-based differences in functional magnetic resonance imaging (fMRI) studies of schizophrenia may provide a key to understanding sex-based symptom differences. This study aimed to summarize sex-based functional magnetic resonance imaging (fMRI) differences in brain activity of patients with schizophrenia...
April 2024: Human Brain Mapping
https://read.qxmd.com/read/38517789/shared-and-specific-changes-of-cortico-striatal-functional-connectivity-in-stable-mild-cognitive-impairment-and-progressive-mild-cognitive-impairment
#15
JOURNAL ARTICLE
Yiming Ruan, Darui Zheng, Wenxuan Guo, Xuan Cao, Wenzhang Qi, Qianqian Yuan, Xulian Zhang, Xuhong Liang, Da Zhang, Chen Xue, Chaoyong Xiao
BACKGROUND: Mild cognitive impairment (MCI), the prodromal stage of Alzheimer's disease, has two distinct subtypes: stable MCI (sMCI) and progressive MCI (pMCI). Early identification of the two subtypes has important clinical significance. OBJECTIVE: We aimed to compare the cortico-striatal functional connectivity (FC) differences between the two subtypes of MCI and enhance the accuracy of differential diagnosis between sMCI and pMCI. METHODS: We collected resting-state fMRI data from 31 pMCI patients, 41 sMCI patients, and 81 healthy controls...
March 22, 2024: Journal of Alzheimer's Disease: JAD
https://read.qxmd.com/read/38517178/quantification-of-mediation-effects-of-white-matter-functional-characteristics-on-cognitive-decline-in-aging
#16
JOURNAL ARTICLE
Muwei Li, Kurt G Schilling, Fei Gao, Lyuan Xu, Soyoung Choi, Yurui Gao, Zhongliang Zu, Adam W Anderson, Zhaohua Ding, Bennett A Landman, John C Gore
Cognitive decline with aging involves multifactorial processes, including changes in brain structure and function. This study focuses on the role of white matter functional characteristics, as reflected in blood oxygenation level-dependent signals, in age-related cognitive deterioration. Building on previous research confirming the reproducibility and age-dependence of blood oxygenation level-dependent signals acquired via functional magnetic resonance imaging, we here employ mediation analysis to test if aging affects cognition through white matter blood oxygenation level-dependent signal changes, impacting various cognitive domains and specific white matter regions...
March 1, 2024: Cerebral Cortex
https://read.qxmd.com/read/38516817/altered-functional-connectivity-of-brainstem-nuclei-in-new-daily-persistent-headache-evidence-from-resting-state-functional-magnetic-resonance-imaging
#17
JOURNAL ARTICLE
Wei Wang, Dong Qiu, Yanliang Mei, Xiaoyan Bai, Ziyu Yuan, Xue Zhang, Zhonghua Xiong, Hefei Tang, Peng Zhang, Yaqing Zhang, Xueying Yu, Zhe Wang, Zhaoli Ge, Binbin Sui, Yonggang Wang
OBJECTIVES: The new daily persistent headache (NDPH) is a rare primary headache disorder. However, the underlying mechanisms of NDPH remain incompletely understood. This study aims to apply seed-based analysis to explore the functional connectivity (FC) of brainstem nuclei in patients with NDPH using resting-state functional magnetic resonance imaging (MRI). METHODS: The FC analysis from the region of interest (ROI) to whole brain voxels was used to investigate 29 patients with NDPH and 37 well-matched healthy controls (HCs) with 3...
March 2024: CNS Neuroscience & Therapeutics
https://read.qxmd.com/read/38516315/research-on-the-multidimensional-brain-remodeling-mechanisms-at-the-level-of-brain-regions-circuits-and-networks-in-patients-with-chronic-lower-back-pain-caused-by-lumbar-disk-herniation
#18
JOURNAL ARTICLE
Yuan-Dong Mei, Hang Gao, Wei-Fei Chen, Wei Zhu, Chen Gu, Jun-Peng Zhang, Ji-Ming Tao, Xu-Yun Hua
INTRODUCTION: Chronic lower back pain (cLBP), frequently attributed to lumbar disk herniation (LDH), imposes substantial limitations on daily activities. Despite its prevalence, the neural mechanisms underlying lower back pain remain incompletely elucidated. Functional magnetic resonance imaging (fMRI) emerges as a non-invasive modality extensively employed for investigating neuroplastic changes in neuroscience. In this study, task-based and resting-state fMRI methodologies are employed to probe the central mechanisms of lower back pain...
2024: Frontiers in Neuroscience
https://read.qxmd.com/read/38515219/differences-in-resting-state-brain-activity-in-first-episode-drug-na%C3%A3-ve-major-depressive-disorder-patients-with-and-without-suicidal-ideation
#19
JOURNAL ARTICLE
Ping Cao, Ke Dai, Xianwei Liu, Jun Hu, Zhuma Jin, Shulan Xu, Fangfang Ren
Despite altered brain activities being associated with suicidal ideation (SI), the neural correlates of SI in major depressive disorder (MDD) have remained elusive. We enrolled 82 first-episode drug-naïve MDD patients including 41 with SI and 41 without SI, as well as 41 healthy controls (HCs). Resting-state functional and structural MRI data were collected. The measures of fractional amplitude of low-frequency fluctuation (fALFF) and grey matter volume (GMV) were calculated and compared. Compared with HCs, patients with SI exhibited increased fALFF values in the right rectus gyrus and left medial superior frontal gyrus, middle frontal gyrus and precuneus...
March 21, 2024: European Journal of Neuroscience
https://read.qxmd.com/read/38512647/alterations-in-degree-centrality-and-functional-connectivity-in-tension-type-headache-a-resting-state-fmri-study
#20
REVIEW
Shuxian Zhang, Mengqi Zhao, Jiazhang Sun, Jianjie Wen, Mengting Li, Chao Wang, Qinyan Xu, Jili Wang, Xihe Sun, Lulu Cheng, Xiaomeng Xue, Xizhen Wang, Xize Jia
Previous studies have provided evidence of structural and functional changes in the brains of patients with tension-type headache (TTH). However, investigations of functional connectivity alterations in TTH have been inconclusive. The present study aimed to investigate abnormal intrinsic functional connectivity patterns in patients with TTH through the voxel-wise degree centrality (DC) method as well as functional connectivity (FC) analysis. A total of 33 patients with TTH and 30 healthy controls (HCs) underwent resting-state functional magnetic resonance imaging (rs-fMRI) scanning and were enrolled in the final study...
March 21, 2024: Brain Imaging and Behavior
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