Abstract:
:While the pathophysiology of transient global amnesia (TGA) is not understood, due to the specific nature of the clinical deficits, transient dysfunction in the medial temporal lobe, especially in the hippocampus, is assumed; however, concomitant disturbances in other brain regions and in executive function have been postulated. In this study, a cohort of 16 patients was prospectively recruited from the emergency department for resting-state functional MRI (fMRI) during the acute stage of TGA, as confirmed by a standardized neuropsychological assessment. Twenty age- and sex-matched controls, as well as twenty patients with a history of TGA, were recruited for comparison. Functional data were processed using independent component analysis (ICA), allowing the complete automatic (data-driven) identification of spontaneous network dynamics. We documented a severe disturbance in anterograde episodic long-term memory in all patients. Group-based ICA of resting-state data in acute TGA patients versus that of controls and patients with a past TGA episode demonstrated reduced FC mainly of structures belonging to the executive network (EN), but also the hippocampus, confirming its pathophysiological involvement in the disorder, as well as areas belonging to the salience network and other subcortical regions. No significant differences were found when comparing connectivity in patients with a history of TGA and controls. Our findings strengthen previous empirical and theoretical accounts of hippocampal and executive dysfunction in TGA. The disruption of frontal, parietal and insular control regions, together with disruption in the hippocampus, provides a new interpretation for the pathophysiology and neuropsychological profile of this neurological disorder on a large-scale network level.
journal_name
Neuroimage Clinjournal_title
NeuroImage. Clinicalauthors
Zidda F,Griebe M,Ebert A,Ruttorf M,Roßmanith C,Gass A,Andoh J,Nees F,Szabo Kdoi
10.1016/j.nicl.2019.101869subject
Has Abstractpub_date
2019-01-01 00:00:00pages
101869issn
2213-1582pii
S2213-1582(19)30219-0journal_volume
23pub_type
杂志文章abstract:BACKGROUND:Incomplete hippocampal inversion (IHI), also called malrotation, is a frequent atypical anatomical pattern of the hippocampus. Because of the crucial implication of the hippocampus in Major Depressive Disorder (MDD) and the neurodevelopmental hypothesis of MDD, we aimed to assess the prevalence of IHI in pat...
journal_title:NeuroImage. Clinical
pub_type: 杂志文章
doi:10.1016/j.nicl.2016.04.009
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journal_title:NeuroImage. Clinical
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journal_title:NeuroImage. Clinical
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doi:10.1016/j.nicl.2012.09.003
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journal_title:NeuroImage. Clinical
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journal_title:NeuroImage. Clinical
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journal_title:NeuroImage. Clinical
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journal_title:NeuroImage. Clinical
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journal_title:NeuroImage. Clinical
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journal_title:NeuroImage. Clinical
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doi:10.1016/j.nicl.2014.08.005
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journal_title:NeuroImage. Clinical
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journal_title:NeuroImage. Clinical
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journal_title:NeuroImage. Clinical
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doi:10.1016/j.nicl.2020.102269
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abstract::Multivariate classification is used in neuroimaging studies to infer brain activation or in medical applications to infer diagnosis. Their results are often assessed through either a binomial or a permutation test. Here, we simulated classification results of generated random data to assess the influence of the cross-...
journal_title:NeuroImage. Clinical
pub_type: 杂志文章
doi:10.1016/j.nicl.2014.04.004
更新日期:2014-04-13 00:00:00
abstract::Social anxiety disorder (SAD) is characterized by strong fear and anxiety during social interactions. Although ventrolateral prefrontal cortex (VLPFC) activity in response to emotional stimuli is related to pathological anxiety, little is known about the relationship between VLPFC activity and social anxiety. This stu...
journal_title:NeuroImage. Clinical
pub_type: 杂志文章
doi:10.1016/j.nicl.2015.05.011
更新日期:2015-05-28 00:00:00
abstract::Limb weakness in amyotrophic lateral sclerosis (ALS) is typically asymmetric. Previous studies have identified an effect of limb dominance on onset and spread of weakness, however relative atrophy of dominant and non-dominant brain regions has not been investigated. Our objective was to use voxel-based morphometry (VB...
journal_title:NeuroImage. Clinical
pub_type: 杂志文章
doi:10.1016/j.nicl.2015.03.006
更新日期:2015-03-14 00:00:00
abstract::The cerebellum plays an important role in motor learning as part of a cortico-striato-cerebellar network. Patients with cerebellar degeneration typically show impairments in different aspects of motor learning, including implicit motor sequence learning. How cerebellar dysfunction affects interactions in this cortico-...
journal_title:NeuroImage. Clinical
pub_type: 杂志文章
doi:10.1016/j.nicl.2017.07.012
更新日期:2017-07-15 00:00:00
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journal_title:NeuroImage. Clinical
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.nicl.2015.01.013
更新日期:2015-01-27 00:00:00
abstract::Very preterm birth is associated with altered white matter microstructure and language difficulties, which may compromise communication, social function and academic achievement, but the relationship between these two factors is unclear. The aim of this study was to explore associations between white matter microstruc...
journal_title:NeuroImage. Clinical
pub_type: 杂志文章
doi:10.1016/j.nicl.2018.09.020
更新日期:2018-01-01 00:00:00
abstract:BACKGROUND:Progressive cognitive decline following multimodal neurooncological treatment is a common observation in patients suffering from malignant glioma. Alterations of the default-mode network (DMN) represent a possible source of impaired neurocognitive functioning and were analyzed in these patients. METHODS:Eig...
journal_title:NeuroImage. Clinical
pub_type: 杂志文章
doi:10.1016/j.nicl.2020.102287
更新日期:2020-01-01 00:00:00
abstract:OBJECTIVES:Investigating the potential of myelin repair strategies in multiple sclerosis (MS) requires an understanding of myelin dynamics during lesion evolution. The objective of this study is to longitudinally measure myelin water fraction (MWF), an MRI biomarker of myelin, in new MS lesions and to identify factors ...
journal_title:NeuroImage. Clinical
pub_type: 杂志文章
doi:10.1016/j.nicl.2015.09.003
更新日期:2015-09-12 00:00:00
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journal_title:NeuroImage. Clinical
pub_type: 杂志文章
doi:10.1016/j.nicl.2019.102008
更新日期:2019-01-01 00:00:00
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journal_title:NeuroImage. Clinical
pub_type: 杂志文章,多中心研究
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更新日期:2019-01-01 00:00:00
abstract:OBJECTIVES:Neuroimaging studies have independently demonstrated brain anatomical and functional impairments in participants with ADHD. The aim of the current study was to explore the relationship between structural and functional brain alterations in ADHD through an integrated analysis of multimodal neuroimaging data. ...
journal_title:NeuroImage. Clinical
pub_type: 杂志文章
doi:10.1016/j.nicl.2019.101851
更新日期:2019-01-01 00:00:00
abstract:Background:Previous publications indicate that Alzheimer's Disease (AD) related cortical atrophy may develop in asymmetric patterns, with accentuation of the left hemisphere. Since fluorodeoxyglucose positron emission tomography (FDG PET) measurements of the regional cerebral metabolic rate of glucose (rCMRgl) provide ...
journal_title:NeuroImage. Clinical
pub_type: 杂志文章
doi:10.1016/j.nicl.2018.07.016
更新日期:2018-07-17 00:00:00
abstract::Epilepsy affects 65 million people worldwide, a third of whom have seizures that are resistant to anti-epileptic medications. Some of these patients may be amenable to surgical therapy or treatment with implantable devices, but this usually requires delineation of discrete structural or functional lesion(s), which is ...
journal_title:NeuroImage. Clinical
pub_type: 杂志文章,评审
doi:10.1016/j.nicl.2016.02.013
更新日期:2016-02-23 00:00:00
abstract:BACKGROUND:Chronic cyanosis in adults with congenital heart disease (CHD) may cause structural brain changes that could contribute to impaired neurological functioning. The extent of these changes has not been adequately characterized. HYPOTHESIS:We hypothesized that adults with cyanotic CHD would have widespread chan...
journal_title:NeuroImage. Clinical
pub_type: 杂志文章
doi:10.1016/j.nicl.2013.12.011
更新日期:2014-01-04 00:00:00
abstract::Attention-deficit/hyperactivity disorder (ADHD) is one of the most prevalent and heritable psychiatric disorders. While previous studies have focussed on mapping focal or connectivity differences at the group level, the present study employed pattern recognition to quantify group separation between unaffected siblings...
journal_title:NeuroImage. Clinical
pub_type: 杂志文章
doi:10.1016/j.nicl.2016.06.020
更新日期:2016-07-02 00:00:00
abstract:INTRODUCTION:Cognitive complaints are common shortly after mild traumatic brain injury (mTBI) but may persist up to years. Age-related cognitive decline can worsen these symptoms. However, effects of age on mTBI sequelae have scarcely been investigated. METHODS:Fifty-four mTBI patients (median age: 35 years, range 19-...
journal_title:NeuroImage. Clinical
pub_type: 杂志文章
doi:10.1016/j.nicl.2020.102534
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abstract::The electroencephalogram (EEG) constitutes a relevant tool to study neural dynamics and to develop brain-machine interfaces (BMI) for rehabilitation of patients with paralysis due to stroke. However, the EEG is easily contaminated by artifacts of physiological origin, which can pollute the measured cortical activity a...
journal_title:NeuroImage. Clinical
pub_type: 杂志文章
doi:10.1016/j.nicl.2018.09.035
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abstract::Mutations in the granulin gene (GRN) cause familial frontotemporal dementia. Understanding the structural brain changes in presymptomatic GRN carriers would enforce the use of neuroimaging biomarkers for early diagnosis and monitoring. We studied 100 presymptomatic GRN mutation carriers and 94 noncarriers from the Gen...
journal_title:NeuroImage. Clinical
pub_type: 杂志文章
doi:10.1016/j.nicl.2020.102540
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