keyword
MENU ▼
Read by QxMD icon Read
search

Salience network, functional connectivity, fMRI

keyword
https://www.readbyqxmd.com/read/28730732/shared-atypical-default-mode-and-salience-network-functional-connectivity-between-autism-and-schizophrenia
#1
Heng Chen, Lucina Q Uddin, Xujun Duan, Junjie Zheng, Zhiliang Long, Youxue Zhang, Xiaonan Guo, Yan Zhang, Jingping Zhao, Huafu Chen
Schizophrenia and autism spectrum disorder (ASD) are two prevalent neurodevelopmental disorders sharing some similar genetic basis and clinical features. The extent to which they share common neural substrates remains unclear. Resting-state fMRI data were collected from 35 drug-naïve adolescent participants with first-episode schizophrenia (15.6 ± 1.8 years old) and 31 healthy controls (15.4 ± 1.6 years old). Data from 22 participants with ASD (13.1 ± 3.1 years old) and 21 healthy controls (12...
July 21, 2017: Autism Research: Official Journal of the International Society for Autism Research
https://www.readbyqxmd.com/read/28707959/interactions-of-the-salience-network-and-its-subsystems-with-the-default-mode-and-the-central-executive-networks-in-normal-aging-and-mild-cognitive-impairment
#2
Ganesh Chand, Junjie Wu, Ihab Hajjar, Deqiang Qiu
Previous functional MRI (fMRI) investigations suggest that the intrinsically organized large-scale networks and the interaction between them might be crucial for cognitive activities. A triple network model, which consists of the default-mode network, salience network, and central-executive network, has been recently employed to understand the connectivity patterns of the cognitively normal brains versus the brains with disorders. This model suggests that the salience network dynamically controls the default-mode and central-executive networks in healthy young individuals...
July 14, 2017: Brain Connectivity
https://www.readbyqxmd.com/read/28705767/common-and-distinct-dysfunctional-patterns-contribute-to-triple-network-model-in-schizophrenia-and-depression-a-preliminary-study
#3
Yuchao Jiang, Mingjun Duan, Xi Chen, Xin Chang, Hui He, YingJia Li, Cheng Luo, Dezhong Yao
BACKGROUND: Schizophrenia (SCH) and depression (DEP) are prevalent psychiatric disorders and share common and distinguished elements in their pathophysiology. A triple network model composed of the default mode network (DMN), salience network (SN) and central executive network (CEN) may represent a major abnormality across several psychiatric disorders including SCH and DEP. However, common and distinct dysfunctional patterns between SCH and DEP across three core networks remain unclear...
July 10, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28634465/abnormal-resting-state-functional-connectivity-in-progressive-supranuclear-palsy-and-corticobasal-syndrome
#4
Komal Bharti, Matteo Bologna, Neeraj Upadhyay, Maria Cristina Piattella, Antonio Suppa, Nikolaos Petsas, Costanza Giannì, Francesca Tona, Alfredo Berardelli, Patrizia Pantano
BACKGROUND: Pathological and MRI-based evidence suggests that multiple brain structures are likely to be involved in functional disconnection between brain areas. Few studies have investigated resting-state functional connectivity (rsFC) in progressive supranuclear palsy (PSP) and corticobasal syndrome (CBS). In this study, we investigated within- and between-network rsFC abnormalities in these two conditions. METHODS: Twenty patients with PSP, 11 patients with CBS, and 16 healthy subjects (HS) underwent a resting-state fMRI study...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28615426/modulation-of-intrinsic-resting-state-fmri-networks-in-women-with-chronic-migraine
#5
X Michelle Androulakis, Kaitlin Krebs, B Lee Peterlin, Tianming Zhang, Nasim Maleki, Souvik Sen, Chris Rorden, Priyantha Herath
OBJECTIVE: To evaluate the intrinsic resting functional connectivity of the default mode network (DMN), salience network (SN), and central executive network (CEN) network in women with chronic migraine (CM), and whether clinical features are associated with such abnormalities. METHODS: We analyzed resting-state connectivity in 29 women with CM as compared to age- and sex-matched controls. Relationships between clinical characteristics and changes in targeted networks connectivity were evaluated using a multivariate linear regression model...
July 11, 2017: Neurology
https://www.readbyqxmd.com/read/28596187/functional-connectivity-in-virally-suppressed-patients-with-hiv-associated-neurocognitive-disorder-a-resting-state-analysis
#6
J R Chaganti, A Heinecke, T M Gates, K J Moffat, B J Brew
BACKGROUND AND PURPOSE: HIV-associated neurocognitive disorder still occurs despite virally suppressive combination antiretroviral therapy. In the pre-combination antiretroviral era and in patients without HIV suppression, HIV-associated neurocognitive disorder was caused by synaptodendritic injury resulting in impairment of neural networks, characterized by decreased attention, psychomotor slowing, and working memory deficits. Whether similar pathogenesis is true for HIV-associated neurocognitive disorder in the context of viral suppression is not clear...
June 8, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28566724/aberrant-intra-and-internetwork-functional-connectivity-in-depressed-parkinson-s-disease
#7
Luqing Wei, Xiao Hu, Yajing Zhu, Yonggui Yuan, Weiguo Liu, Hong Chen
Much is known concerning the underlying mechanisms of Parkinson's disease (PD) with depression, but our understanding of this disease at the neural-system level remains incomplete. This study used resting-state functional MRI (rs-fMRI) and independent component analysis (ICA) to investigate intrinsic functional connectivity (FC) within and between large-scale neural networks in 20 depressed PD (dPD) patients, 35 non-depressed PD (ndPD) patients, and 34 healthy controls (HC). To alleviate the influence caused by ICA model order selection, this work reported results from analyses at 2 levels (low and high model order)...
May 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28528203/changes-in-resting-state-functional-brain-connectivity-and-withdrawal-symptoms-are-associated-with-acute-electronic-cigarette-use
#8
Andréa L Hobkirk, Travis T Nichols, Jonathan Foulds, Jessica M Yingst, Susan Veldheer, Shari Hrabovsky, John Richie, Thomas Eissenberg, Stephen J Wilson
Resting state functional brain connectivity (rsFC) may be an important neuromarker of smoking behavior. Prior research has shown, among cigarette smokers, that nicotine administration alters rsFC within frontal and parietal cortices involved in executive control, as well as striatal regions that drive reward processing. These changes in rsFC have been associated with reductions in withdrawal symptom severity. We currently have a limited understanding of how rsFC is affected by the use of electronic cigarettes (ecigs), an increasingly popular class of products, the members of which deliver nicotine with varying effectiveness...
May 17, 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/28523217/relation-between-patterns-of-intrinsic-network-connectivity-cognitive-functioning-and-symptom-presentation-in-trauma-exposed-patients-with-major-depressive-disorder
#9
Melissa Parlar, Maria Densmore, Geoffrey B Hall, Paul A Frewen, Ruth A Lanius, Margaret C McKinnon
OBJECTIVE: The present study investigated resting fMRI connectivity within the default mode (DMN), salience (SN), and central executive (CEN) networks in relation to neurocognitive performance and symptom severity in trauma-exposed patients with major depressive disorder (MDD). METHOD: Group independent component analysis was conducted among patients with MDD (n = 21), examining DMN, SN, and CEN connectivity in relation to neurocognitive performance and symptom severity...
May 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28513104/novelty-seeking-and-reward-dependence-related-large-scale-brain-networks-functional-connectivity-variation-during-salience-expectancy
#10
Shijia Li, Liliana Ramona Demenescu, Catherine M Sweeney-Reed, Anna Linda Krause, Coraline D Metzger, Martin Walter
A salience network (SN) anchored in the anterior insula (AI) and dorsal anterior cingulate cortex (dACC) plays a key role in switching between brain networks during salience detection and attention regulation. Previous fMRI studies have associated expectancy behaviors and SN activation with novelty seeking (NS) and reward dependence (RD) personality traits. To address the question of how functional connectivity (FC) in the SN is modulated by internal (expectancy-related) salience assignment and different personality traits, 68 healthy participants performed a salience expectancy task using functional magnetic resonance imaging, and psychophysiological interaction analysis (PPI) was conducted to determine salience-related connectivity changes during these anticipation periods...
May 17, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28506079/the-neural-correlates-of-emotional-lability-in-children-with-autism-spectrum-disorder
#11
Randi H Bennett, Krishna Somandepalli, Amy K Roy, Adriana Di Martino
Autism spectrum disorder (ASD) is exceptionally heterogeneous in both clinical and physiopathological presentations. Clinical variability applies to ASD-specific symptoms and frequent comorbid psychopathology such as emotional lability (EL). To date, the physiopathological underpinnings of the co-occurrence of EL and ASD are unknown. As a first step, we examined within-ASD inter-individual variability of EL and its neuronal correlates using resting-state functional magnetic resonance imaging (R-fMRI). We analyzed R-fMRI data from 58 children diagnosed with ASD (5-12 years) in relation to the Conners' Parent Rating Scale EL index...
June 2017: Brain Connectivity
https://www.readbyqxmd.com/read/28499208/whole-brain-resting-state-functional-connectivity-identified-major-depressive-disorder-a-multivariate-pattern-analysis-in-two-independent-samples
#12
Xue Zhong, Huqing Shi, Qingsen Ming, Daifeng Dong, Xiaocui Zhang, Ling-Li Zeng, Shuqiao Yao
BACKGROUND: there has been a recent increase in the use of connectome-based multivariate pattern analysis (MVPA) of resting-state functional magnetic resonance imaging (fMRI) data aimed at distinguishing patients with major depressive disorder (MDD) from healthy controls (HCs). However, the validity of this method needs to be confirmed in independent samples. METHOD: we used resting-state fMRI to explore whole-brain functional connectivity (FC) patterns characteristic of MDD and to confirm the effectiveness of MVPA in distinguishing MDD versus HC groups in two independent samples...
April 21, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28487224/changes-in-intrinsic-functional-connectivity-and-group-relevant-salience-the-case-of-sport-rivalry
#13
Zargol Moradi, Dante Mantini, Alla Yankouskaya, Miles Hewstone, Glyn W Humphreys
Studies have shown that attending to salient group relevant information could increase the BOLD activity across distributed neural networks. However, it is unclear how attending to group relevant information changes the functional connectivity across these networks. We investigated this issue combining resting states and task-based fMRI experiment. The task involved football fans learning associations between arbitrary geometric shapes and the badges of in-group, the rival and the neutral football teams. Upon learning, participants viewed different badge/shape pairs and their task was to judge whether the viewed pair was a match or a mismatch...
May 6, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28484381/impaired-activation-of-visual-attention-network-for-motion-salience-is-accompanied-by-reduced-functional-connectivity-between-frontal-eye-fields-and-visual-cortex-in-strabismic-amblyopia
#14
Hao Wang, Sheila G Crewther, Minglong Liang, Robin Laycock, Tao Yu, Bonnie Alexander, David P Crewther, Jian Wang, Zhengqin Yin
Strabismic amblyopia is now acknowledged to be more than a simple loss of acuity and to involve alterations in visually driven attention, though whether this applies to both stimulus-driven and goal-directed attention has not been explored. Hence we investigated monocular threshold performance during a motion salience-driven attention task involving detection of a coherent dot motion target in one of four quadrants in adult controls and those with strabismic amblyopia. Psychophysical motion thresholds were impaired for the strabismic amblyopic eye, requiring longer inspection time and consequently slower target speed for detection compared to the fellow eye or control eyes...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28478685/resting-state-functional-connectivity-in-generalized-anxiety-disorder-and-social-anxiety-disorder-evidence-for-a-dimensional-approach
#15
Liron Rabany, Gretchen J Diefenbach, Laura B Bragdon, Brian P Pittman, Luis Zertuche, David F Tolin, John W Goethe, Michal Assaf
Generalized anxiety disorder (GAD) and social anxiety disorder (SAD) are currently considered distinct diagnostic categories. Accumulating data suggest the study of anxiety disorders may benefit from the use of dimensional conceptualizations. One such dimension of shared dysfunction is emotion regulation (ER). The current study evaluated dimensional (ER) and categorical (diagnosis) neurocorrelates of resting-state functional connectivity (rsFC) in participants with GAD and SAD and healthy controls (HC). Functional magnetic resonance imaging (fMRI) rsFC was estimated between all regions of the default mode network (DMN), salience network (SN), and bilateral amygdala (N = 37: HC-19; GAD-10; SAD-8)...
June 2017: Brain Connectivity
https://www.readbyqxmd.com/read/28466439/high-sensitivity-neuroimaging-biomarkers-for-the-identification-of-amnestic-mild-cognitive-impairment-based-on-resting-state-fmri-and-a-triple-network-model
#16
Enyan Yu, Zhengluan Liao, Yunfei Tan, Yaju Qiu, Junpeng Zhu, Zhang Han, Jue Wang, Xinwei Wang, Hong Wang, Yan Chen, Qi Zhang, Yumei Li, Dewang Mao, Zhongxiang Ding
Many functional magnetic resonance imaging (fMRI) studies have indicated that Granger causality analysis (GCA) is a suitable method for revealing causal effects between brain regions. The purpose of the present study was to identify neuroimaging biomarkers with a high sensitivity to amnestic mild cognitive impairment (aMCI). The resting-state fMRI data of 30 patients with Alzheimer's disease (AD), 14 patients with aMCI, and 18 healthy controls (HC) were evaluated using GCA. This study focused on the "triple networks" concept, a recently proposed higher-order functioning-related brain network model that includes the default-mode network (DMN), salience network (SN), and executive control network (ECN)...
May 3, 2017: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/28458998/resting-state-functional-connectivity-between-right-anterior-insula-and-right-orbital-frontal-cortex-correlate-with-insight-level-in-obsessive-compulsive-disorder
#17
Jie Fan, Mingtian Zhong, Xiongzhao Zhu, Jun Gan, Wanting Liu, Chaoyang Niu, Haiyan Liao, Hongchun Zhang, Jinyao Yi, Changlian Tan
Few studies have explored the neurobiological basis of insight level in obsessive-compulsive disorder (OCD), though the salience network (SN) has been implicated in insight deficits in schizophrenia. This study was then designed to investigate whether resting-state (rs) functional connectivity (FC) of SN was associated with insight level in OCD patients. We analyzed rs-functional magnetic resonance imaging (fMRI) data from 21 OCD patients with good insight (OCD-GI), 19 OCD patients with poor insight (OCD-PI), and 24 healthy controls (HCs)...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28453543/altered-resting-state-intra-and-inter-network-functional-connectivity-in-patients-with-persistent-somatoform-pain-disorder
#18
Zhiyong Zhao, Tianming Huang, Chaozheng Tang, Kaiji Ni, Xiandi Pan, Chao Yan, Xiaoduo Fan, Dongrong Xu, Yanli Luo
Patients with persistent somatoform pain disorder (PSPD) usually experience various functional impairments in pain, emotion, and cognition, which cannot be fully explained by a physiological process or a physical disorder. However, it is still not clear for the mechanism underlying the pathogenesis of PSPD. The present study aimed to explore the intra- and inter-network functional connectivity (FC) differences between PSPD patients and healthy controls (HCs). Functional magnetic resonance imaging (fMRI) was performed in 13 PSPD patients and 23 age- and gender-matched HCs...
2017: PloS One
https://www.readbyqxmd.com/read/28443736/brain-resting-state-functional-connectivity-is-preserved-under-sevoflurane-anesthesia-in-patients-with-pervasive-developmental-disorders-a-pilot-study
#19
Lakshmikumar Venkatraghavan, Suparna Bharadwaj, Vincent Wourms, Audrey Tan, Michael T Jurkiewicz, David J Mikulis, Adrian P Crawley
Functional connectivity studies play a huge role in understanding the relationship between the network connections and the behavioral phenotype of patients with pervasive developmental disorders (PDD). Some patients with PDD may not be able to tolerate the imaging procedure while they are awake, and, hence, they often need general anesthesia. General anesthesia is a confounding factor in functional imaging studies due to its effect on the functional connectivity. The objective of this study is to look at the resting-state functional connectivity (RS-FC) under sevoflurane anesthesia in patients with PDDs...
May 2017: Brain Connectivity
https://www.readbyqxmd.com/read/28396874/frequency-specific-effects-of-apoe-%C3%AE%C2%B54-allele-on-resting-state-networks-in-nondemented-elders
#20
Ying Liang, Zhenzhen Li, Jing Wei, Chunlin Li, Xu Zhang, Alzheimer's Disease Neuroimaging Initiative
We applied resting-state functional magnetic resonance imaging (fMRI) to examine the Apolipoprotein E (ApoE) ε4 allele effects on functional connectivity of the default mode network (DMN) and the salience network (SN). Considering the frequency specific effects of functional connectivity, we decomposed the brain network time courses into two bands: 0.01-0.027 Hz and 0.027-0.08 Hz. All scans were acquired by the Alzheimer's Disease Neuroscience Initiative (ADNI). Thirty-two nondemented subjects were divided into two groups based on the presence (n = 16) or absence (n = 16) of the ApoE ε4 allele...
2017: BioMed Research International
keyword
keyword
95105
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"