A comparison of Granger causality and coherency in fMRI-based analysis of the motor system.

abstract：:Spatial leakage effects are particularly confounding for seed-based investigations of brain networks using source-level electroencephalography (EEG) or magnetoencephalography (MEG). Various methods designed to avoid this issue have been introduced but are limited to particular assumptions about its temporal characteri...

journal_title：Human brain mapping

authors： Wens V,Marty B,Mary A,Bourguignon M,Op de Beeck M,Goldman S,Van Bogaert P,Peigneux P,De Tiège X

更新日期：2015-11-01 00:00:00

abstract：OBJECTIVE:Synchronization between distributed rhythms in the brain is commonly assessed by estimating the synchronization strength from simultaneous measurements. This approach, however, does not elucidate the phase dynamics that underlies synchronization. For this, an explicit dynamical model is required. Based on the...

journal_title：Human brain mapping

authors： Hindriks R,Bijma F,van Dijk BW,Stam CJ,van der Werf YY,van Someren EJ,de Munck JC,van der Vaart AW

更新日期：2011-07-01 00:00:00

abstract：:The preprocessing pipelines typically used in both task and resting-state functional magnetic resonance imaging (rs-fMRI) analysis are modular in nature: They are composed of a number of separate filtering/regression steps, including removal of head motion covariates and band-pass filtering, performed sequentially and...

journal_title：Human brain mapping

authors： Lindquist MA,Geuter S,Wager TD,Caffo BS

更新日期：2019-06-01 00:00:00

abstract：:Diffusion tensor imaging (DTI) can be used to index white matter integrity of the corticospinal tract (CST) after stroke; however, the psychometric properties of DTI-based measures of white matter integrity are unknown. The purpose of this study was to examine test-retest reliability as determined by intraclass correl...

journal_title：Human brain mapping

authors： Lewis AF,Myers M,Heiser J,Kolar M,Baird JF,Stewart JC

更新日期：2020-06-15 00:00:00

abstract：:Magnetic resonance imaging of subcortical gray matter structures, which mediate behavior, cognition and the pathophysiology of several diseases, is crucial for establishing typical maturation patterns across the human lifespan. This single site study examines T1-weighted MPRAGE images of 3 healthy cohorts: (i) a cross...

journal_title：Human brain mapping

authors： Narvacan K,Treit S,Camicioli R,Martin W,Beaulieu C

更新日期：2017-08-01 00:00:00

abstract：:Although elevated serum high-sensitivity C-reactive protein (hsCRP) is related to atherosclerosis, brain infarction, and cognitive decline, it has not been clarified whether increased hsCRP is associated with the decline in brain gray matter volume. Therefore, the purpose of this study was to determine the relationshi...

journal_title：Human brain mapping

authors： Taki Y,Thyreau B,Kinomura S,Sato K,Goto R,Wu K,Kakizaki M,Tsuji I,Kawashima R,Fukuda H

更新日期：2013-10-01 00:00:00

abstract：:It is assumed widely that the clinical expression of Parkinson's Disease (PD), both motor and cognitive, is subtended by topographically distributed brain networks. However, little is known about the functional neuroanatomy of executive dysfunction in PD. Our objective was to validate further in a PD group the use of ...

journal_title：Human brain mapping

authors： Lozza C,Baron JC,Eidelberg D,Mentis MJ,Carbon M,Marié RM

更新日期：2004-07-01 00:00:00

abstract：:The neural systems sustaining object naming were examined using the activation likelihood estimation (ALE) meta-analysis approach on the results of 16 previously published studies. The activation task in each study required subjects to name pictures of objects or animals, but the baseline tasks varied. Separate meta-a...

journal_title：Human brain mapping

authors： Price CJ,Devlin JT,Moore CJ,Morton C,Laird AR

更新日期：2005-05-01 00:00:00

abstract：:Numerous daily tasks, including car driving, require fine visuospatial tuning. One such visuospatial ability, speed discrimination, declines with aging but its neural underpinnings remain unknown. In this study, we use fMRI to explore the effect of aging during a high speed discrimination task and its neural underpinn...

journal_title：Human brain mapping

authors： Eudave L,Martínez M,Luis EO,Pastor MA

更新日期：2018-11-01 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

authors： Gruber O,Tost H,Henseler I,Schmael C,Scherk H,Ende G,Ruf M,Falkai P,Rietschel M

更新日期：2010-01-01 00:00:00

abstract：:Hypercoupling of activity in speech-perception-specific brain networks has been proposed to play a role in the generation of auditory-verbal hallucinations (AVHs) in schizophrenia; however, it is unclear whether this hypercoupling extends to nonverbal auditory perception. We investigated this by comparing schizophreni...

journal_title：Human brain mapping

authors： Lavigne KM,Woodward TS

更新日期：2018-04-01 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

authors： Spielberg JM,Sadeh N,Leritz EC,McGlinchey RE,Milberg WP,Hayes JP,Salat DH

更新日期：2017-06-01 00:00:00

abstract：:Humans can easily recognize others' facial expressions. Among the brain substrates that enable this ability, considerable attention has been paid to face-selective areas; in contrast, whether motion-sensitive areas, which clearly exhibit sensitivity to facial movements, are involved in facial expression recognition re...

journal_title：Human brain mapping

authors： Liang Y,Liu B,Xu J,Zhang G,Li X,Wang P,Wang B

更新日期：2017-06-01 00:00:00

abstract：:It is unknown to what extent briefly presented emotional words can be processed without awareness. By means of two independent functional magnetic resonance imaging studies, using either a block or an event-related design, we investigated brain activation to very briefly presented threat related and neutral words duri...

journal_title：Human brain mapping

authors： Hoffmann M,Mothes-Lasch M,Miltner WH,Straube T

更新日期：2015-02-01 00:00:00

abstract：:An important function of the brain's orienting response is to enable the evaluation of novel, environmental events in order to prepare for potential behavioral action. Here, we assessed the event-related hemodynamic (erfMRI) correlates of this phenomenon using unexpected (i.e., novel) environmental sounds presented wi...

journal_title：Human brain mapping

authors： Friedman D,Goldman R,Stern Y,Brown TR

更新日期：2009-04-01 00:00:00

abstract：:Adaptive behavior relies on the ability of the brain to form predictions and monitor action outcomes. In the human brain, the same system is thought to monitor action outcomes regardless of whether the information originates from internal (e.g., proprioceptive) and external (e.g., visual) sensory channels. Neural sign...

journal_title：Human brain mapping

authors： Zubarev I,Parkkonen L

更新日期：2018-11-01 00:00:00

abstract：:The hippocampus, a hub of activity for a variety of important cognitive processes, is a target of increasing interest for researchers and clinicians. Magnetoencephalography (MEG) is an attractive technique for imaging spectro-temporal aspects of function, for example, neural oscillations and network timing, especially...

journal_title：Human brain mapping

authors： Ruzich E,Crespo-García M,Dalal SS,Schneiderman JF

更新日期：2019-03-01 00:00:00

abstract：:Electrophysiological signals from the cerebellum have traditionally been viewed as inaccessible to magnetoencephalography (MEG) and electroencephalography (EEG). Here, we challenge this position by investigating the ability of MEG and EEG to detect cerebellar activity using a model that employs a high-resolution tesse...

journal_title：Human brain mapping

authors： Samuelsson JG,Sundaram P,Khan S,Sereno MI,Hämäläinen MS

更新日期：2020-06-15 00:00:00

abstract：:Verbal stimuli often induce right-hemispheric activation in patients with aphasia after left-hemispheric stroke. This right-hemispheric activation is commonly attributed to functional reorganization within the language system. Yet previous evidence suggests that functional activation in right-hemispheric homologues of...

journal_title：Human brain mapping

authors： Baumgaertner A,Hartwigsen G,Roman Siebner H

更新日期：2013-06-01 00:00:00

abstract：:The cingulum bundle is a white matter fiber bundle in the human brain that is believed to be implicated in various neurological and psychiatric diseases. Subtle disease-related differences in metabolite concentrations in the cingulum tracts that may underlie these diseases may be detected using MR spectroscopic inform...

journal_title：Human brain mapping

authors： Mandl RC,van den Heuvel MP,Klomp DW,Boer VO,Siero JC,Luijten PR,Hulshoff Pol HE

更新日期：2012-07-01 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

authors： Seghier ML,Lazeyras F,Pegna AJ,Annoni JM,Khateb A

更新日期：2008-04-01 00:00:00

abstract：OBJECTIVES:Brisk walking, a sensitive test to evaluate gait capacity in normal and pathological aging such as parkinsonism, is used as an alternative to classical fitness program for motor rehabilitation and may help to decrease the risk of cognitive deterioration observed with aging. In this study, we aimed to identif...

journal_title：Human brain mapping

authors： Crémers J,Dessoullières A,Garraux G

更新日期：2012-04-01 00:00:00

abstract：PURPOSE:To analyze functional connectivity (FC) of the visual cortex using resting-state functional MRI in human primary open-angle glaucoma (POAG) patients. MATERIALS AND METHODS:Twenty-two patients with known POAG and 22 age-matched controls were included in this IRB-approved study. Subjects were evaluated by 3 T MR...

journal_title：Human brain mapping

authors： Dai H,Morelli JN,Ai F,Yin D,Hu C,Xu D,Li Y

更新日期：2013-10-01 00:00:00

abstract：:Machine learning has increasingly been applied to classification of schizophrenia in neuroimaging research. However, direct replication studies and studies seeking to investigate generalizability are scarce. To address these issues, we assessed within-site and between-site generalizability of a machine learning classi...

journal_title：Human brain mapping

authors： Cai XL,Xie DJ,Madsen KH,Wang YM,Bögemann SA,Cheung EFC,Møller A,Chan RCK

更新日期：2020-01-01 00:00:00

abstract：:Explicit knowledge of conditioned stimulus (CS)/unconditioned stimulus (UCS) associations is proposed as important factor in classical conditioning. However, while previous studies have focused on its roles in fear conditioning, it has been neglected in the context of appetitive conditioning. The present functional ma...

journal_title：Human brain mapping

authors： Tapia León I,Kruse O,Stalder T,Stark R,Klucken T

更新日期：2018-04-01 00:00:00

abstract：:The present study investigates human visual processing of simple two-colour patterns using a delayed match to sample paradigm with positron emission tomography (PET). This study is unique in that we specifically designed the visual stimuli to be the same for both pattern and colour recognition with all patterns being ...

journal_title：Human brain mapping

authors： Barrett NA,Large MM,Smith GL,Michie PT,Karayanidis F,Kavanagh DJ,Fawdry R,Henderson D,O'Sullivan BT

更新日期：2001-08-01 00:00:00

abstract：:Chemosensory-based communication is a vital signaling tool in most species, and evidence has recently emerged in support of the notion that humans also use social chemosignals (so-called pheromones) to communicate. An ongoing controversy does exist, however, concerning the receptor organ through which these chemicals ...

journal_title：Human brain mapping

authors： Frasnelli J,Lundström JN,Boyle JA,Katsarkas A,Jones-Gotman M

更新日期：2011-03-01 00:00:00

abstract：:Ten healthy adults encountered pictures of unfamiliar archaic tools and successfully learned either their name, verbal definition of their usage, or both. Neural representation of the newly acquired information was probed with magnetoencephalography in an overt picture-naming task before and after learning, and in two...

journal_title：Human brain mapping

authors： Hultén A,Vihla M,Laine M,Salmelin R

更新日期：2009-03-01 00:00:00

abstract：:This study evaluated the neural basis of verbal working memory (WM) function in a group of 20 children and adolescents with fetal alcohol spectrum disorders (FASDs) and 20 typically developing comparison participants using functional magnetic resonance imaging (fMRI). Both groups showed prominent activation in the fro...

journal_title：Human brain mapping

authors： O'Hare ED,Lu LH,Houston SM,Bookheimer SY,Mattson SN,O'Connor MJ,Sowell ER

更新日期：2009-10-01 00:00:00

abstract：:Our primary question was to learn whether mentally composing drawings of their own choice produce different brain electric features in artists and laymen. To this purpose, we studied multichannel electroencephalograph (EEG) signals from two broad groups (all participants were females): artists (professionally trained ...

journal_title：Human brain mapping

authors： Bhattacharya J,Petsche H

更新日期：2005-09-01 00:00:00