Abstract:
:Constrained spherical deconvolution (CSD) of diffusion-weighted MRI (DW-MRI) is a popular analysis method that extracts the full white matter (WM) fiber orientation density function (fODF) in the living human brain, noninvasively. It assumes that the DW-MRI signal on the sphere can be represented as the spherical convolution of a single-fiber response function (RF) and the fODF, and recovers the fODF through the inverse operation. CSD approaches typically require that the DW-MRI data is sampled shell-wise, and estimate the RF in a purely spherical manner using spherical basis functions, such as spherical harmonics (SH), disregarding any radial dependencies. This precludes analysis of data acquired with nonspherical sampling schemes, for example, Cartesian sampling. Additionally, nonspherical sampling can also arise due to technical issues, for example, gradient nonlinearities, resulting in a spatially dependent bias of the apparent tissue densities and connectivity information. Here, we adopt a compact model for the RFs that also describes their radial dependency. We demonstrate that the proposed model can accurately predict the tissue response for a wide range of b-values. On shell-wise data, our approach provides fODFs and tissue densities indistinguishable from those estimated using SH. On Cartesian data, fODF estimates and apparent tissue densities are on par with those obtained from shell-wise data, significantly broadening the range of data sets that can be analyzed using CSD. In addition, gradient nonlinearities can be accounted for using the proposed model, resulting in much more accurate apparent tissue densities and connectivity metrics.
journal_name
Hum Brain Mappjournal_title
Human brain mappingauthors
Morez J,Sijbers J,Vanhevel F,Jeurissen Bdoi
10.1002/hbm.25241subject
Has Abstractpub_date
2020-11-10 00:00:00eissn
1065-9471issn
1097-0193pub_type
杂志文章abstract::Glucose transporter type I deficiency syndrome (GLUT1DS) is an encephalopathic disorder due to a chronic insufficient transport of glucose into the brain. PET studies in GLUT1DS documented a widespread cortico-thalamic hypometabolism and a signal increase in the basal ganglia, regardless of age and clinical phenotype....
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.24815
更新日期:2020-02-01 00:00:00
abstract::The extent of central nervous system involvement in Kennedy's disease (KD) relative to other motor neuron disease (MND) phenotypes still needs to be clarified. In this study, we investigated cortical and white matter (WM) MRI alterations in 25 patients with KD, compared with 24 healthy subjects, 25 patients with spora...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.24583
更新日期:2019-07-01 00:00:00
abstract::Investigations of the neural correlates of face recognition have typically used old/new paradigms where subjects learn to recognize new faces or identify famous faces. Familiar faces, however, include one's own face, partner's and parents' faces. Using event-related fMRI, we examined the neural correlates of these per...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.20646
更新日期:2009-07-01 00:00:00
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journal_title:Human brain mapping
pub_type: 杂志文章,评审
doi:10.1002/hbm.24893
更新日期:2020-04-15 00:00:00
abstract:BACKGROUND:Abnormalities in inhibitory control and underlying fronto-striatal networks is common to both attention deficit hyperactivity disorder (ADHD) and obsessive-compulsive-disorder (OCD). The aim of this study was to investigate disorder-specific abnormalities in neural networks mediating interference inhibition ...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.21048
更新日期:2011-04-01 00:00:00
abstract::Recent studies have investigated the neural correlates of how we perceive emotions of individuals or a group of individuals using images of individual bodily expressions. However, it is still largely unknown how we perceive the emotion of a dynamic crowd. This fMRI study used realistic videos of a large group of peopl...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.22774
更新日期:2015-06-01 00:00:00
abstract::Mounting evidence indicates that serum cholesterol and other risk factors for cardiovascular disease intensify normative trajectories of age-related cognitive decline. However, the neural mechanisms by which this occurs remain largely unknown. To understand the impact of cholesterol on brain networks, we applied graph...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.23587
更新日期:2017-06-01 00:00:00
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journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.20740
更新日期:2009-10-01 00:00:00
abstract::Carpal tunnel syndrome (CTS) is a common entrapment neuropathy of the median nerve characterized by paresthesias and pain in the first through fourth digits. We hypothesize that aberrant afferent input from CTS will lead to maladaptive cortical plasticity, which may be corrected by appropriate therapy. Functional MRI ...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.20261
更新日期:2007-03-01 00:00:00
abstract::Recent evidence suggests that deficits of working memory may be a promising neurocognitive endophenotype of bipolar affective disorder. However, little is known about the neurobiological correlates of these deficits. The aim of this study was to determine possible pathophysiological trait markers of bipolar disorder i...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.20849
更新日期:2010-01-01 00:00:00
abstract::Task-switching performance relies on a broadly distributed frontoparietal network and declines in older adults. In this study, they investigated whether this age-related decline in task switching performance was mediated by variability in global or regional white matter microstructural health. Seventy cognitively inta...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.23473
更新日期:2017-03-01 00:00:00
abstract::Neural dynamics can shape human experience, including pain. Pain has been linked to dynamic functional connectivity within and across brain regions of the dynamic pain connectome (consisting of the ascending nociceptive pathway (Asc), descending antinociceptive pathway (Desc), salience network (SN), and the default mo...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.25245
更新日期:2021-02-15 00:00:00
abstract::Cognitive dysfunction is common in patients with multiple sclerosis (MS). Saccadic eye movement paradigms such as antisaccades (AS) can sensitively interrogate cognitive function, in particular, the executive and attentional processes of response selection and inhibition. Although we have previously demonstrated signi...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.22329
更新日期:2014-05-01 00:00:00
abstract:BACKGROUND:Trait impulsiveness is a potential factor that predicts both substance use and certain psychiatric disorders. This study investigates whether there are common structural cerebral correlates of trait impulsiveness and cognitive functioning in a large sample of healthy adolescents from the IMAGEN project. MET...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.21446
更新日期:2013-02-01 00:00:00
abstract::Before considering a given fMRI paradigm as a valid clinical tool, one should first assess the reliability of functional responses across subjects by establishing a normative database and defining a reference activation map that identifies major brain regions involved in the task at hand. However, the definition of su...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.20410
更新日期:2008-04-01 00:00:00
abstract::Adolescence is a time period associated with marked brain maturation that coincides with an enhanced risk for onset of psychiatric disorder. White matter tract myelination, a process that continues to unfold throughout adolescence, is reported to be abnormal in several psychiatric disorders. Here, we ask whether psych...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.24842
更新日期:2020-02-15 00:00:00
abstract::Perinatal stroke is the leading cause of hemiparetic cerebral palsy (CP), resulting in life-long disability. In this study, we examined the relationship between robotic upper extremity motor impairment and corticospinal tract (CST) diffusion properties. Thirty-three children with unilateral perinatal ischemic stroke (...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.23904
更新日期:2018-03-01 00:00:00
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journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.22910
更新日期:2015-10-01 00:00:00
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journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.20238
更新日期:2006-12-01 00:00:00
abstract::Previous investigations of the default-mode network (DMN) in persons with attention-deficit/hyperactivity disorder (ADHD) have shown reduced functional connectivity between the anterior and posterior aspects. This finding was originally demonstrated in adults with ADHD, then in youth with ADHD, and has been tentativel...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.21459
更新日期:2013-03-01 00:00:00
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journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.23884
更新日期:2018-02-01 00:00:00
abstract::A theoretical framework supporting experimental measures of dynamic properties of human EEG is proposed with emphasis on distinct alpha rhythms. Robust relationships between measured dynamics and cognitive or behavioral conditions are reviewed, and proposed physiological bases for EEG at cellular levels are considered...
journal_title:Human brain mapping
pub_type: 杂志文章,评审
doi:10.1002/hbm.1030
更新日期:2001-07-01 00:00:00
abstract:UNLABELLED:Major depression has been repeatedly associated with amygdala hyper-responsiveness to negative (but not positive) facial expressions at early, automatic stages of emotion processing using subliminally presented stimuli. However, it is not clear whether this "limbic bias" is a correlate of depression or repre...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.22112
更新日期:2013-11-01 00:00:00
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journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.21065
更新日期:2011-01-01 00:00:00
abstract:BACKGROUND:Reduced cortical thickness is a candidate biological marker of depression, although findings are inconsistent. This could reflect analytic heterogeneity, such as use of region-wise cortical thickness based on the Freesurfer Desikan-Killiany (DK) atlas or surface-based morphometry (SBM). The Freesurfer Destri...
journal_title:Human brain mapping
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1002/hbm.23664
更新日期:2017-09-01 00:00:00
abstract::Self-generated sensory stimulation can be distinguished from externally generated stimulation that is otherwise identical. To determine how the brain differentiates external from self-generated noxious stimulation and which structures of the lateral pain system use neural signals to predict the sensory consequences of...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.20217
更新日期:2006-09-01 00:00:00
abstract::Behavioral evidence and theory suggest gesture and language processing may be part of a shared cognitive system for communication. While much research demonstrates both gesture and language recruit regions along perisylvian cortex, relatively less work has tested functional segregation within these regions on an indiv...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.23251
更新日期:2016-10-01 00:00:00
abstract::In addition to its role in visuospatial navigation and the generation of spatial representations, in recent years, the hippocampus has been proposed to support perceptual processes. This is especially the case where high-resolution details, in the form of fine-grained relationships between features such as angles betw...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.24865
更新日期:2020-04-01 00:00:00
abstract::In BOLD fMRI data analysis, robust and accurate estimation of the Hemodynamic Response Function (HRF) is still under investigation. Parametric methods assume the shape of the HRF to be known and constant throughout the brain, whereas non-parametric methods mostly rely on artificially increasing the signal-to-noise rat...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.10100
更新日期:2003-05-01 00:00:00
abstract::Depressive symptoms often coexist with memory deficits in older adults and also are associated with incident cognitive decline in the elderly. However, little is known about the neural correlates of the association between depressive symptoms and memory deficits in nondemented elderly. Fifteen amnestic mild cognitive ...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.21291
更新日期:2012-06-01 00:00:00