journal
https://read.qxmd.com/read/38019079/the-feeling-of-time-passing-is-associated-with-recurrent-sustained-activity-and-theta-rhythms-across-the-cortex
#21
JOURNAL ARTICLE
Emma Millon, Ali Haddad, Han Yan M Chang, Laleh Najafizadeh, Tracey J Shors
INTRODUCTION: We are constantly estimating how much time has passed, and yet know little about the brain mechanisms through which this process occurs. In this pilot study, we evaluated so-called "subjective time estimation" with the temporal bisection task, while recording brain activity from electroencephalography (EEG). METHOD: Nine adult participants were trained to distinguish between two durations of visual stimuli as either "short" (400ms) or "long" (1600ms)...
November 29, 2023: Brain Connectivity
https://read.qxmd.com/read/37930734/alzheimer-s-disease-is-associated-with-increased-network-assortativity-evidence-from-metabolic-connectivity
#22
JOURNAL ARTICLE
Sunil Kumar Khokhar, Manoj Kumar, Sandeep Kumar, Tejaswini Manae, Nithin Thanissery, Subasree Ramakrishnan, Faheem Arshad, Chandana Nagaraj, M Sandhya, Suvarna Alladi, Tapan K Gandhi, Rose Dawn Bharath
INTRODUCTION: Unravelling the network pathobiology in neurodegenerative disorders is a popular and promising field of research. We use a relatively newer network measure of assortativity in metabolic connectivity to understand network differences in patients with Alzheimer's Dementia (AD) compared to those with mild cognitive impairment (MCI). METHODS: 83 demographically matched patients with dementia (56 AD and 27 MCI) who underwent PET-MRI study, were recruited for this exploratory study...
November 6, 2023: Brain Connectivity
https://read.qxmd.com/read/37930733/a-functional-magnetic-resonance-imaging-study-using-dynamic-amplitude-of-low-frequency-fluctuation-to-assess-brain-activity-in-patients-with-moyamoya-disease
#23
JOURNAL ARTICLE
Qian Wei, Yining Wang, Lijuan Zhang, Chenyu Yu, Huiye Shu, Xulin Liao, Sanhua Xu, Ting Su, Ming Kang, Yi Shao
Introduction:The purpose of this study was to monitor and record the dynamic brain activity of patients with moyamoya disease (MMD), as well as to study the relationship between brain abnormalities and presenting clinical features. Methods:A total of 16 patients with moyamoya disease (2 males and 14 females) were invited to participate in the study, as were healthy controls (HCs) with the same number and sexes. In this study, the dynamic amplitude of low frequency fluctuation (dALFF) was utilized to assess changes in spontaneous brain activity...
November 6, 2023: Brain Connectivity
https://read.qxmd.com/read/37930726/a-blood-based-lipid-profile-associated-with-hippocampal-volume-and-brain-resting-state-activation-within-obese-adults-from-the-uk-biobank
#24
JOURNAL ARTICLE
Guocheng Jiang, Jennifer S Rabin, Sandra E Black, Walter Swardfager, Bradley J MacIntosh
OBJECTIVES: Obesity and dyslipidemia may be associated with hippocampal alterations and may increase the risk of neurodegeneration. This study studied hippocampal anatomical and functional association with a lipid profile based on high-density lipoprotein, low-density lipoprotein, and triglyceride related to dyslipidemia in obese and non-obese adults. A whole-brain analysis was also conducted to examine the effect of dyslipidemia on resting state function across the brain. PARTICIPANTS AND METHODS: 554 UK Biobank participants comprised three groups based on body mass index (BMI) rankings: obese adults with high BMI (OHigh, n=184, 32...
November 6, 2023: Brain Connectivity
https://read.qxmd.com/read/37917103/eeg-based-metastability-in-mild-cognitive-impairment-alzheimer-s-disease
#25
JOURNAL ARTICLE
Surya Das, Subha D Puthankattil
BACKGROUND: The current study analyses metastability, a feature of brain dynamics in subjects experiencing mild cognitive impairment Alzheimer's disease (MCI-AD) under eyes open (EO) and eyes closed (EC) conditions. Alzheimer's disease is a critically prolonged brain disorder that alters brain connectivity through changes in neural synchronization and desynchronization. Metastable states occur when functional connectivity patterns changes as a consequence of temporal dynamics of brain...
November 2, 2023: Brain Connectivity
https://read.qxmd.com/read/37955991/-brain-connectivity-a-journal-of-clinical-neurology-neuroscience-neuroimaging-advancing-the-field-of-neurology
#26
EDITORIAL
Paul Edison
No abstract text is available yet for this article.
November 2023: Brain Connectivity
https://read.qxmd.com/read/37847159/camouflage-detection-and-its-association-with-cognitive-style-a-functional-connectivity-study
#27
JOURNAL ARTICLE
Deepak Sharma, Mini Sharma, Prabhjot Kaur, Soumi Awasthy, Shubham Kaushal, Maria D'souza, Ganesh Bagler, Shilpi Modi
Background: Individual differences exist in performance in tasks that require visual search, such as camouflage detection. Field Dependence/Independence (FD/I), as assessed using Group Embedded Figures Test (GEFT), is an extensively studied dimension of cognitive style that classifies participants based on their visual perceptual styles. Methods: In the present study, we utilized fMRI on 46 healthy participants to investigate the underlying neural mechanisms specific to the cognitive styles of FD/FI while performing a camouflage detection task using both activation magnitude and an exploratory functional connectivity analysis...
October 17, 2023: Brain Connectivity
https://read.qxmd.com/read/36772802/stimulation-of-the-premotor-cortex-enhances-interhemispheric-functional-connectivity-in-association-with-upper-limb-motor-recovery-in-moderate-to-severe-chronic-stroke
#28
RANDOMIZED CONTROLLED TRIAL
Robert H Unger, Mark J Lowe, Erik B Beall, Francois Bethoux, Stephen E Jones, Andre G Machado, Ela B Plow, David A Cunningham
Background: Transcranial direct current stimulation (tDCS) targeting the primary motor cortex is modestly effective for promoting upper-limb motor function following stroke. The premotor cortex (PMC) represents an alternative target based on its higher likelihood of survival and dense motor-network connections. Objective: The objective of this study was to determine whether ipsilesional PMC tDCS affects motor network functional connectivity (FC) in association with reduction in motor impairment, and to determine whether this relationship is influenced by baseline motor severity...
October 2023: Brain Connectivity
https://read.qxmd.com/read/37782227/cognitive-outcomes-poststroke-a-need-for-better-insights-into-mechanisms
#29
JOURNAL ARTICLE
Nagaendran Kandiah
No abstract text is available yet for this article.
September 29, 2023: Brain Connectivity
https://read.qxmd.com/read/37782213/-brain-connectivity-a-journal-of-clinical-neurology-neuroscience-neuroimaging-advancing-the-field-of-neurology-special-issue-stroke-and-vascular-cognitive-impairment
#30
JOURNAL ARTICLE
https://read.qxmd.com/read/37703541/-brain-connectivity-a-journal-of-clinical-neurology-neuroscience-neuroimaging-advancing-the-field-of-neurology
#31
EDITORIAL
Paul Edison
No abstract text is available yet for this article.
September 2023: Brain Connectivity
https://read.qxmd.com/read/37646398/preserved-white-matter-integrity-and-recovery-after-brain-tumor-surgery-a-prospective-pilot-study-on-the-frontal-aslant-tract
#32
JOURNAL ARTICLE
Tim Wende, Anastasia Hoffmann, Cordula Scherlach, Johannes Kasper, Caroline Sander, Felix Arlt, Eric Dietel, Anika Stockert, Jürgen Meixensberger, Gordian Prasse
INTRODUCTION: Damage to white matter tracts can cause severe neurological deficits, which are often hardly predictable before brain tumor surgery. To explore the possibility of assessing white matter integrity and its preservation, we chose the frontal aslant tract (FAT) due to its involvement in multiple neurological functions like speech and movement initiation. METHODS: Right-handed patients with left-hemispheric intracerebral tumors underwent FAT tractography within seven days before and three days after surgery...
August 30, 2023: Brain Connectivity
https://read.qxmd.com/read/37597202/characterization-of-resting-state-functional-connectivity-changes-in-hypertension-by-a-modified-difference-degree-test
#33
JOURNAL ARTICLE
William Reeves, Ishfaque Ahmed, Brooke S Jackson, Wenwu Sun, Michelle L Brown, Celestine F Williams, Catherine L Davis, Jennifer McDowell, Nathan E Yanasak, Shaoyung Su, Qun Zhao
INTRODUCTION: Hypertension affects over a billion people worldwide, and the application of neuroimaging may elucidate changes brought about by the disease. We have applied a graph theory approach to examine the organizational differences in resting-state functional magnetic resonance imaging (rs-fMRI) data between hypertensive and normotensive participants. To detect these groupwise differences, we performed statistical testing using a modified difference degree test (DDT). METHODS: Structural and rs-fMRI data were collected from a cohort of 52 total (29 hypertensive, 23 normotensive) participants...
August 19, 2023: Brain Connectivity
https://read.qxmd.com/read/37578129/investigating-habenula-functional-connectivity-and-reward-related-activity-in-obesity-using-human-connectome-project-data
#34
JOURNAL ARTICLE
Margo Slomp, Ilke G S de Lange, Joram D Mul, Anouk Schrantee, Susanne E la Fleur
INTRODUCTION: The habenula, a brain region involved in aversion, might negatively modulate caloric intake. Functional Magnetic Resonance Imaging (fMRI) studies reported associations between weight loss and habenula functional connectivity. However, whether habenula resting state functional connectivity (rsFC) and reward-related activity is altered in obesity is yet unknown. METHODS: Using data from the Human Connectome Project, we included 300 subjects with various BMIs and a healthy long-term blood glucose (HbA1c)...
August 14, 2023: Brain Connectivity
https://read.qxmd.com/read/37551987/structural-network-topology-reveals-higher-brain-resilience-in-individuals-with-preclinical-alzheimer-s-disease
#35
JOURNAL ARTICLE
Qianyun Chen, Jill Abrigo, Min Deng, Lin Shi, Yi-Xiang Wang, Winnie Cw Chu
INTRODUCTION: The diagnosis of Alzheimer's disease (AD) requires the presence of amyloid and tau pathology, but it remains unclear how they affect structural network in the preclinical stage. We aimed to assess differences of topological properties in cognitively normal individuals with varying levels of amyloid and tau pathologies, as well as their association with AD pathology burden. METHODS: A total of 68 cognitively normal individuals were included and stratified by normal/abnormal (-/+) amyloid (A) and tau (T) status based on positron emission tomography results, yielding three groups: A-T- (n = 19), A+T- (n = 28), and A+T+ (n = 21)...
August 8, 2023: Brain Connectivity
https://read.qxmd.com/read/37552826/brain-connectivity-a-journal-of-clinical-neurology-neuroscience-neuroimaging-advancing-the-field-of-neurology-advances-in-alzheimer-s-disease
#36
EDITORIAL
https://read.qxmd.com/read/37522594/alterations-of-functional-connectivity-in-autism-and-adhd-revealed-by-multi-voxel-pattern-analysis
#37
JOURNAL ARTICLE
Smitha Ka, Despina Stavrinos, Haley B Holm, Sheeba Arnold Anteraper, Rajesh K Kana
Background Autism and Attention Deficit Hyperactivity Disorder (ADHD) are comorbid neurodevelopmental disorders that share common and distinct neurobiological mechanisms, with disrupted brain connectivity patterns being a hallmark feature of both conditions. It is challenging to gain a mechanistic understanding of the underlying disorder because brain connectivity changes in autism and ADHD are heterogeneous. Objectives The present resting state functional MRI (rs-fMRI) study focuses on investigating the shared and distinct rs-fMRI connectivity (rsFC) patterns in autistic and ADHD adults using Multivoxel Pattern Analysis (MVPA)...
July 31, 2023: Brain Connectivity
https://read.qxmd.com/read/37522578/the-influence-of-transcranial-magnetic-stimulation-interpulse-interval-duration-on-knee-extensor-corticospinal-excitability
#38
JOURNAL ARTICLE
Kevan S Knowles, Jonathan P Beausejour, Kylie K Harmon, Ryan M Girts, David H Fukuda, Dawson Kidgell, Matt S Stock
Background/Purpose: To examine the influence of interpulse interval duration on knee extensor corticospinal excitability. Methods: Seventeen college-aged males and females participated in a single laboratory visit, during which 25 single transcranial magnetic stimulation (TMS) pulses were delivered to the motor cortex with interpulse intervals of 5, 10, 15, and 20 seconds. Surface electromyographic signals were detected from the dominant vastus lateralis and rectus femoris. Motor evoked potential (MEP) amplitude was compared across the four conditions...
July 31, 2023: Brain Connectivity
https://read.qxmd.com/read/37279260/changes-of-functional-brain-network-in-neonates-with-different-degrees-of-hypoxic-ischemic-encephalopathy
#39
JOURNAL ARTICLE
Yingying Wang, Yi Wang, Guowei Hua, Min Yu, Lu Lin, Lichi Zhang, Hongxin Li
Background: Neonatal hypoxic-ischemic encephalopathy (HIE) is the main cause of neonatal death and disability worldwide. At present, there are few researches on the application of resting-state functional magnetic resonance imaging (rs-fMRI) to explore the brain development of HIE children. This study aimed to explore the changes of brain function in neonates with different degrees of HIE using rs-fMRI. Methods: From February 2018 to May 2020, 44 patients with HIE were recruited, including 21 mild patients and 23 moderate and severe patients...
July 26, 2023: Brain Connectivity
https://read.qxmd.com/read/37477882/rosalind-franklin-society-proudly-announces-the-2022-award-recipient-for-brain-connectivity
#40
JOURNAL ARTICLE
Tara Chand
No abstract text is available yet for this article.
July 21, 2023: Brain Connectivity
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