Results 141 to 150 of about 271,169 (372)

Comparing resting state fMRI de-noising approaches using multi- and single-echo acquisitions

PLoS ONE, 2017
Artifact removal in resting state fMRI (rfMRI) data remains a serious challenge, with even subtle head motion undermining reliability and reproducibility.
O. Dipasquale, Arjun Sethi, M. M. Laganá, F. Baglio, G. Baselli, P. Kundu, N. Harrison, M. Cercignani   +7 more
semanticscholar   +1 more source

High spatial correspondence at a columnar level between activation and resting state fMRI signals and local field potentials [PDF]

, 2017
Zhaoyue Shi, Ruiqi Wu, Pai-Feng Yang, Feng Wang, Tung-Lin Wu, Arabinda Mishra, Li Min Chen, John C. Gore   +7 more
openalex   +1 more source

Developmental Brain Age Estimation From MRI Data: A Systematic Review of Deep Learning Approaches and Open Datasets

Journal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Brain age is an emerging concept that reflects complex, time‐dependent changes in brain structure, identifying departures from expected neurodevelopmental patterns. In the developing brain, accurate MRI‐based age estimation is a quantitative biomarker for detecting atypical neurodevelopment, facilitating early diagnosis, guiding clinical ...
Hosna Asma ull, Misha P. T. Kaandorp, Andras Jakab, Hyun Gi Kim   +3 more
wiley   +1 more source

Studying Sub-dendrograms of Resting-state Functional Networks with Voxel-wise Hierarchical Clustering

Frontiers in Human Neuroscience, 2016
Hierarchical clustering is a useful data-driven approach to classify complex data and has been used to analyze resting-state functional magnetic resonance imaging (fMRI) data and derive functional networks of the human brain at very large scale, such as ...
Yanlu eWang, Mussie eMsghina, Tie-Qiang eLi, Tie-Qiang eLi   +3 more
doaj   +1 more source

Exploring the Dynamics of Ischemia and Reactive Hyperemia With Skeletal Muscle Blood Oxygen Level Dependent MRI in Patients With Peripheral Artery Disease, Age‐Matched Controls, and Young Healthy Subjects

Journal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background Skeletal muscle blood oxygen level dependent (BOLD) MRI is a technique for assessing vascular function in peripheral limbs. In patients, however, an increased frequency of atypical response patterns has been observed, warranting investigation into its underlying causes.
Jonathan Arvidsson, Stefanie Eriksson, Oscar Jalnefjord, Edvin Johansson, Joakim Nordanstig, Kerstin Lagerstrand   +5 more
wiley   +1 more source

Hemodynamic response function (HRF) variability confounds resting‐state fMRI functional connectivity

Magnetic Resonance in Medicine, 2018
fMRI is the convolution of the hemodynamic response function (HRF) and unmeasured neural activity. HRF variability (HRFv) across the brain could, in principle, alter functional connectivity (FC) estimates from resting‐state fMRI (rs‐fMRI).
D. Rangaprakash, Guo-Rong Wu, Daniele Marinazzo, Xiaoping Hu, G. Deshpande   +4 more
semanticscholar   +1 more source

Association Between Gas‐Free Cerebrovascular Reactivity (CVR) and Cognitive Function in Older Adults With a High Risk for Vascular Dementia

Journal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background Vascular cognitive impairment and dementia (VCID) is the second leading cause of dementia. Cerebrovascular reactivity (CVR) is a promising biomarker for VCID. However, CVR is not commonly measured in clinical practice due to logistical difficulties in applying a hypercapnia challenge during MR imaging. Purpose To investigate whether
Fariba Badrzadeh, Elham Karimigharighi, Huajun Liang, Andrew Chan, Linda Chang, Peiying Liu   +5 more
wiley   +1 more source

Altered spontaneous brain activity in chronic smokers revealed by fractional ramplitude of low-frequency fluctuation analysis: a preliminary study

Scientific Reports, 2017
Although a substantial body of previous functional magnetic resonance imaging (fMRI) studies have revealed different brain responses to external stimuli in chronic cigarette smokers compared with nonsmokers, only a few studies assessed brain spontaneous ...
Chao Wang, Zhujing Shen, Peiyu Huang, Hualiang Yu, Wei Qian, Xiaojun Guan, Quanquan Gu, Yihong Yang, Minming Zhang   +8 more
doaj   +1 more source

Resting-state fMRI functional connectivity and mindfulness in clinical and non-clinical contexts: A review and synthesis

Neuroscience and Biobehavioral Reviews, 2022
Idil Sezer, D. Pizzagalli, Matthew D. Sacchet   +2 more
semanticscholar   +1 more source

Reward network connectivity “at rest” is associated with reward sensitivity in healthy adults: A resting-state fMRI study [PDF]

, 2019
Jesús Adrián‐Ventura, Víctor Costumero, María Antonia Parcet, César Ávila   +3 more
openalex   +1 more source