fmri

Resting-State Functional Connectivity and Cognitive Performance in Long COVID: A Randomized Controlled Trial David O’Connor; Eric Watson; David L Reich; Fernando Carnavali; Megan Mcveety; Pranav Gwalani; Juan P Wisnivesky; Jacqueline H Becker Cognitive impairment is a prevalent, disabling...

Breathlessness catastrophising after COVID-19 involves both interoceptive and visceromotor connectivity Persistent breathlessness is common after COVID-19, yet its severity typically correlates weakly with objective clinical measures. This discordance is often attributed to perceptual...

Modality-specific neurovascular coupling via layer-segregated arteriole networks INTRODUCTION The brain continuously adjusts blood flow in response to elevations in neuronal activity through a process known as neurovascular coupling. These vascular responses form the basis of widely used brain...

Central origin of fatigability in Myalgic encephalomyelitis/chronic fatigue syndrome revealed by multimodal neuroimaging Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) is a debilitating chronic disease characterized by physical and mental fatigue, post-exertional malaise, muscle...

Investigation of BOLD signal intensities in long COVID patients using 7T functional MRI Abstract Long COVID is increasingly associated with disruption in brain homeostasis, manifesting as severe neurological dysfunction, brain fog and cognitive impairment. This present study investigated...

Decreased functional connectivity in post-COVID syndrome patients with high neuroinflammatory activity INTRODUCTION Previous research suggests some post-COVID patients with neurocognitive complaints (NCC) show neuroinflammation. Like in inflammatory diseases, this may affect network...

Paywalled. ////////////////////////////////////////// Anterior midcingulate cortex activity during pain catastrophizing predicts and sequentially tracks reduction in pain interference after cognitive behavioral therapy in fibromyalgia Abstract Abstract Fibromyalgia (FM) is a chronic pain...

Sleep alters neurovascular and hydrodynamic coupling in the human brain Sleep is essential for maintaining brain tissue homeostasis, which is facilitated by enhanced cerebrospinal fluid (CSF) solute transport. Infraslow (<0.1 Hz) vasomotion, CSF flow, and electrophysiological potential all...

Abstract: Cognitive dysfunction is a symptom of Long COVID. To characterize functional connectivity changes that may contribute to cognitive dysfunction in Long COVID (LCov), two consecutive 450 s functional magnetic resonance imaging (fMRI) scans (Runs 1 and 2) were acquired on a 7 Tesla MRI...

Distinct functional connectivity patterns in myalgic encephalomyelitis and long COVID patients during cognitive fatigue: a 7 Tesla task-fMRI study BACKGROUND Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) and long COVID are chronic debilitating illnesses featuring fatigue...

Anna Szente, Ákos Arató, Husamalddin Ali Alhour, Gábor Perlaki, Gergely Orsi, Szilvia Anett Nagy, Eszter Áfra, Barnabás Dudás, Dalma Tényi, Péter Barsi, Norbert Kovács, József Janszky & Gergely Darnai Abstract The long-term effects of coronavirus disease 2019 (COVID-19) are more pronounced...

BOLD signal changes can oppose oxygen metabolism across the human cortex Abstract Functional magnetic resonance imaging measures brain activity indirectly by monitoring changes in blood oxygenation levels, known as the blood-oxygenation-level-dependent (BOLD) signal, rather than directly...

Now published - link here Preprint Hyperbaric oxygen therapy improves clinical symptoms and functional capacity and restores thalamic connectivity in ME/CFS BACKGROUND Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a debilitating disorder characterized by profound fatigue...

Attentional failures after sleep deprivation are locked to joint neurovascular, pupil and cerebrospinal fluid flow dynamics Sleep deprivation rapidly disrupts cognitive function and in the long term contributes to neurological disease. Why sleep deprivation has such profound effects on...

Abstract Brain function relies on energy supplied by mitochondrial energy transformation, but how cellular energetics constrain neurological function and cognition remains poorly understood. Genetic defects in mitochondrial DNA cause rare mitochondrial diseases (MitoD) that offer a unique...

Towards whole brain mapping of the haemodynamic response function Fabio Mangini; Marta Moraschi; Daniele Mascali; Maria Guidi; Michela Fratini; Silvia Mangia; Mauro DiNuzzo; Fabrizio Frezza; Federico Giove Functional magnetic resonance imaging time-series are conventionally processed by linear...

Sex-specific effects of intensity and dose of physical activity on BOLD-fMRI cerebrovascular reactivity and cerebral pulsatility Zacharie Potvin-Jutras; Brittany Intzandt; Hanieh Mohammadi; Peiying Liu; Jean J Chen; Claudine J Gauthier Cerebrovascular reactivity (CVR) and cerebral pulsatility...

Functional Connectivity Alterations Associated with COVID-19-Related Sleep Problems: A Longitudinal Resting-State fMRI Study Hao-bo Chen; Ling Li; Yun-kai Sun; Yi Liu; Wei Chen; Peng Liu; Yan-Hui Liao; An Xie BACKGROUND COVID-19 has led to reports of fatigue and sleep problems. Brain function...

. What Do We Know about Spatial Navigation, and What Else Could Model-Based fMRI Tell Us? Spatial navigation, or the ability to remember and navigate environments, is an important skill for humans and animals. It has inspired a great deal of research, including neuroimaging studies of humans...

Correlates of asymmetric venous drainage in resting state functional magnetic resonance imaging data Nastaran Schwarz; Benedikt Sundermann; Christian Mathys Functional magnetic resonance imaging (fMRI) is an indirect technique for measuring cerebral neural activity. It depends on the local...