abstract：:We present an MEG/EEG framework to reveal statistically significant brain areas engaged in the same cognitive process across trials without resort to averaging procedures. The variability of neuronal responses is assumed to take place only in the reconstructed time series of cortical sources and not in their positions...

journal_title：NeuroImage

authors： David O,Cosmelli D,Hasboun D,Garnero L

更新日期：2003-09-01 00:00:00

abstract：:Semantic priming occurs when a subject is faster in recognising a target word when it is preceded by a related word compared to an unrelated word. The effect is attributed to automatic or controlled processing mechanisms elicited by short or long interstimulus intervals (ISIs) between primes and targets. We employed e...

journal_title：NeuroImage

authors： Copland DA,de Zubicaray GI,McMahon K,Wilson SJ,Eastburn M,Chenery HJ

更新日期：2003-09-01 00:00:00

abstract：:Activity within motor areas of the cortex begins to increase 1 to 2 s prior to voluntary self-initiated movement (termed the Bereitschaftspotential or readiness potential). There has been much speculation and debate over the precise source of this early premovement activity as it is important for understanding the rol...

journal_title：NeuroImage

authors： Cunnington R,Windischberger C,Deecke L,Moser E

更新日期：2003-09-01 00:00:00

abstract：:We recorded cortical-evoked responses with a whole-scalp neuromagnetometer to study human brain dynamics associated with audiotactile interaction. The subjects received unilateral auditory (A) or tactile (T) stimuli, or both stimuli simultaneously (AT), alternating to the left and right side. Responses to AT stimuli d...

journal_title：NeuroImage

authors： Gobbelé R,Schürmann M,Forss N,Juottonen K,Buchner H,Hari R

更新日期：2003-09-01 00:00:00

abstract：:In neuroimaging, data are often modeled using general linear models. Here, we focus on GLMs with error covariances which are modeled as a linear combination of multiple variance/covariance components. Each of these components is weighted by one variance parameter. In many analyses variance parameters are estimated usi...

journal_title：NeuroImage

authors： Kiebel SJ,Glaser DE,Friston KJ

更新日期：2003-09-01 00:00:00

abstract：:This study examined neural responses in nine right-handed healthy individuals while they viewed mild and intense expressions of four emotions (fear, disgust, happiness, and sadness) contrasted with neutral faces in four event-related functional magnetic resonance imaging experiments. Orthogonal polynomial trend analys...

journal_title：NeuroImage

authors： Surguladze SA,Brammer MJ,Young AW,Andrew C,Travis MJ,Williams SC,Phillips ML

更新日期：2003-08-01 00:00:00

abstract：:Human brain imaging studies have suggested that posterior temporo-parietal regions are involved in auditory spatial processing. We used electroencephalography to investigate the dynamics of temporo-parietal networks during working memory for moving sounds. A delayed matching-to-sample task required a decision on the i...

journal_title：NeuroImage

authors： Kaiser J,Bertrand O

更新日期：2003-08-01 00:00:00

abstract：:Tractography uses diffusion tensor imaging data to trace white matter pathways in vivo within the brain. We have constructed group maps that represent three major white matter tracts-the anterior callosal fibers, optic radiations, and pyramidal tracts-in a group of 21 volunteers. For each individual tract the fast mar...

journal_title：NeuroImage

authors： Ciccarelli O,Toosy AT,Parker GJ,Wheeler-Kingshott CA,Barker GJ,Miller DH,Thompson AJ

更新日期：2003-08-01 00:00:00

abstract：:Neuroimaging studies have identified regional brain dysfunctions in schizophrenia, but their dynamic consequences remain unclear. This study reports electrophysiological evaluation of medicated schizophrenic patients during performance of the Wisconsin Card Sorting Test. Using event-related potentials (ERPs), averaged...

journal_title：NeuroImage

authors： González-Hernández JA,Cedeño I,Pita-Alcorta C,Díaz-Comas L,Galán L,Figueredo-Rodriguez P

更新日期：2003-08-01 00:00:00

abstract：:The important roles played by the A(1) adenosine receptor (A(1)AR) in brain physiology and pathology make this receptor a target for in vivo imaging. Here we describe the distribution of A(1)ARs in the living human brain with PET, made possible for the first time by the highly potent and selective A(1)AR antagonist 8-...

journal_title：NeuroImage

authors： Bauer A,Holschbach MH,Meyer PT,Boy C,Herzog H,Olsson RA,Coenen HH,Zilles K

更新日期：2003-08-01 00:00:00

abstract：:To what extent does emotional traumatic context affect sensory processing in the brain? A striking example of emotional impact on sensation is manifested in posttraumatic stress disorder (PTSD), in which a severe emotional trauma produces recurrent and vivid unpleasant sensory recollections. Here we report on an fMRI ...

journal_title：NeuroImage

authors： Hendler T,Rotshtein P,Yeshurun Y,Weizmann T,Kahn I,Ben-Bashat D,Malach R,Bleich A

更新日期：2003-07-01 00:00:00

abstract：:Using positron emission tomography, regional cerebral blood flow was studied in five early blind and five control volunteers during visuo-spatial imagery. Subjects were instructed to generate a mental representation of verbally provided bidimensional patterns that were placed in a grid and to assess pattern symmetry i...

journal_title：NeuroImage

authors： Vanlierde A,De Volder AG,Wanet-Defalque MC,Veraart C

更新日期：2003-07-01 00:00:00

abstract：:The impact of voxel geometry on the blood oxygenation level-dependent (BOLD) signal detectability in the presence of field inhomogeneity is assessed and a quantitative approach to selecting appropriate voxel geometry is developed in this report. Application of the developed technique to BOLD sensitivity improvement of...

journal_title：NeuroImage

authors： Chen NK,Dickey CC,Yoo SS,Guttmann CR,Panych LP

更新日期：2003-07-01 00:00:00

abstract：:Brain asymmetry is a phenomenon well known for handedness and language specialization and has also been studied in motor cortex. Less is known about hemispheric asymmetries in the somatosensory cortex. In the present study, we systematically investigated the representation of somatosensory function analyzing early sub...

journal_title：NeuroImage

authors： Jung P,Baumgärtner U,Bauermann T,Magerl W,Gawehn J,Stoeter P,Treede RD

更新日期：2003-07-01 00:00:00

abstract：:The analysis of raw data in neuroimaging has become a computationally entrenched process with many intricate steps run on increasingly larger datasets. Many software packages exist that provide either complete analyses or specific steps in an analysis. These packages often possess diverse input and output requirements...

journal_title：NeuroImage

authors： Rex DE,Ma JQ,Toga AW

更新日期：2003-07-01 00:00:00

abstract：:Understanding the differences between individuals' personality types at a functional brain level is now possible due to recent developments in both functional brain imaging and personality models. The psychobiological model for temperament and character offers one approach to exploring personality. This study uses SPE...

journal_title：NeuroImage

authors： Turner RM,Hudson IL,Butler PH,Joyce PR

更新日期：2003-07-01 00:00:00

abstract：:Experts of abacus operation demonstrate extraordinary ability in mental calculation. There is psychological evidence that abacus experts utilize a mental image of an abacus to remember and manipulate large numbers in solving problems; however, the neural correlates underlying this expertise are unknown. Using function...

journal_title：NeuroImage

authors： Hanakawa T,Honda M,Okada T,Fukuyama H,Shibasaki H

更新日期：2003-06-01 00:00:00

abstract：:Parallel imaging methods become increasingly available on clinical MR scanners. To investigate the potential of sensitivity-encoded single-shot EPI (SENSE-EPI) for functional MRI, five imaging protocols at different SENSE reduction factors (R) and matrix sizes were compared with respect to their noise characteristics ...

journal_title：NeuroImage

authors： Preibisch C,Pilatus U,Bunke J,Hoogenraad F,Zanella F,Lanfermann H

更新日期：2003-06-01 00:00:00

abstract：:Positron emission tomography (PET) was used to determine the effect of working memory and speed of sentence processing on regional cerebral blood flow (rCBF) during syntactic processing in sentence comprehension. PET activity associated with making plausibility judgments about syntactically more complex subject-object...

journal_title：NeuroImage

authors： Waters G,Caplan D,Alpert N,Stanczak L

更新日期：2003-05-01 00:00:00

abstract：:Functional imaging has revealed differential neural mechanisms underlying action directed toward near or far space. Because some neuropsychological studies of patients with visuospatial neglect failed to show near/far dissociations with perceptual tasks, we investigated whether action and perception elicit distinct ce...

journal_title：NeuroImage

authors： Weiss PH,Marshall JC,Zilles K,Fink GR

更新日期：2003-04-01 00:00:00

abstract：:Linear parametric regression models of fMRI time series have correlated residuals. One approach to address this problem is to condition the autocorrelation structure by temporal smoothing. Smoothing splines with the degree of smoothing selected by generalized cross-validation (GCV-spline) provide a method to find an o...

journal_title：NeuroImage

authors： Carew JD,Wahba G,Xie X,Nordheim EV,Meyerand ME

更新日期：2003-04-01 00:00:00

abstract：:The purpose of this study was to identify brain regions underlying internally generated anticipatory biases toward locations where significant events are expected to occur. Subjects fixated centrally and responded to peripheral targets preceded by a spatially valid (predictive), invalid (misleading), or neutral centra...

journal_title：NeuroImage

authors： Small DM,Gitelman DR,Gregory MD,Nobre AC,Parrish TB,Mesulam MM

更新日期：2003-03-01 00:00:00

abstract：:A multitude of functional imaging studies revealed a mass activation effect at the level of the sensorimotor cortex during repetitive finger-tapping or finger-to-thumb opposition tasks in terms of either a stepwise or a monotonic relationship between movement rate and hemodynamic response. With respect to subcortical ...

journal_title：NeuroImage

authors： Riecker A,Wildgruber D,Mathiak K,Grodd W,Ackermann H

更新日期：2003-03-01 00:00:00

abstract：:Dynamic changes in the cerebral metabolic rate of oxygen (CMRO(2)) and oxygen extraction ratio (OER) in an event-related functional MRI (ER-fMRI) were measured in this study. Six subjects participated in this study at a magnetic field of 1.9 T. Cerebral blood flow (CBF) and blood oxygenation level-dependent (BOLD) cha...

journal_title：NeuroImage

authors： Feng CM,Liu HL,Fox PT,Gao JH

更新日期：2003-02-01 00:00:00

abstract：:In the present study, we sought to investigate which brain structures are recruited in planning tasks of increasing complexity. For this purpose, a parametric self-paced pseudo-randomized event-related functional MRI version of the Tower of London task was designed. We tested 22 healthy subjects, enabling assessment o...

journal_title：NeuroImage

authors： van den Heuvel OA,Groenewegen HJ,Barkhof F,Lazeron RH,van Dyck R,Veltman DJ

更新日期：2003-02-01 00:00:00

abstract：:We determined the reproducibility of both the direction and the effect size of the word frequency effect (WFE) as it relates to associative semantic judgments. Sixteen volunteers were scanned twice. At the group level of analysis, signal change and voxel counting could both reproducibly detect the existence of a WFE. ...

journal_title：NeuroImage

authors： Chee MW,Lee HL,Soon CS,Westphal C,Venkatraman V

更新日期：2003-02-01 00:00:00

abstract：:This work proposes an alternative to simulation-based receiver operating characteristic (ROC) analysis for assessment of fMRI data analysis methodologies. Specifically, we apply the rapidly developing nonparametric prediction, activation, influence, and reproducibility resampling (NPAIRS) framework to obtain cross-val...

journal_title：NeuroImage

authors： LaConte S,Anderson J,Muley S,Ashe J,Frutiger S,Rehm K,Hansen LK,Yacoub E,Hu X,Rottenberg D,Strother S

更新日期：2003-01-01 00:00:00

abstract：:When a head is placed in an MRI scanner, differences between the magnetic susceptibility of tissue, bone, and air distort the magnetic field. While some of the resulting inhomogeneity can be corrected by the shimming process, much of it cannot, and this causes distortion (sometimes referred to as geometric distortion)...

journal_title：NeuroImage

authors： Cusack R,Brett M,Osswald K

更新日期：2003-01-01 00:00:00

abstract：:The current event-related fMRI study specifies the neuroanatomical correlates of semantic priming and differences in semantic relation types using an auditory primed lexical decision task (LDT). Word pairs consisted of different relation types, associations (key-chain), pure categorical relations (cow-dog), and unrela...

journal_title：NeuroImage

authors： Kotz SA,Cappa SF,von Cramon DY,Friederici AD

更新日期：2002-12-01 00:00:00

abstract：:This study introduces a direct method of assessing cerebral lateralization for language based on fMRI activation. The method, derived from a voxel-based morphometry study by C. H. Salmond et al. (2000, Hum. Brain Mapping 11, 223-232), bases lateralization on the direct statistical comparison of the magnitude of task-i...

journal_title：NeuroImage

authors： Liégeois F,Connelly A,Salmond CH,Gadian DG,Vargha-Khadem F,Baldeweg T

更新日期：2002-12-01 00:00:00

abstract：:In this study we demonstrate the importance of distributed sampling of peristimulus time in blocked design fMRI studies. Distributed sampling ensures all the components of an event-related hemodynamic response are sampled and avoids the bias incurred when stimulus presentation is time-locked to data acquisition. We fo...

journal_title：NeuroImage

authors： Veltman DJ,Mechelli A,Friston KJ,Price CJ

更新日期：2002-11-01 00:00:00

abstract：:Artificial grammar learning (AGL) is a form of nondeclarative memory that involves the nonconscious acquisition of abstract rules. While data from amnesic patients indicate that AGL does not depend on the medial temporal lobe, the neural basis of this type of memory is unknown and was therefore examined using event-re...

journal_title：NeuroImage

authors： Skosnik PD,Mirza F,Gitelman DR,Parrish TB,Mesulam MM,Reber PJ

更新日期：2002-11-01 00:00:00

abstract：:Alzheimer's disease (AD) is known to cause a variety of disturbances of higher visual functions that are closely related to the neuropathological changes. Visual association areas are more affected than primary visual cortex. Additionally, there is evidence from neuropsychological and imaging studies during rest or pa...

journal_title：NeuroImage

authors： Prvulovic D,Hubl D,Sack AT,Melillo L,Maurer K,Frölich L,Lanfermann H,Zanella FE,Goebel R,Linden DE,Dierks T

更新日期：2002-11-01 00:00:00

abstract：:Visuomotor rotation (VMR) is a variant of the classic mental rotation paradigm. Subjects perform a center-out arm reaching movement, with the instruction to point clockwise or anticlockwise away from the direction of a reaction signal by a prespecified amount. Like classic mental rotation (MR) tasks, there is a linear...

journal_title：NeuroImage

authors： Bestmann S,Thilo KV,Sauner D,Siebner HR,Rothwell JC

更新日期：2002-11-01 00:00:00

abstract：:Twelve right-handed men performed two mental rotation tasks and two control tasks while whole-head functional magnetic resonance imaging was applied. Mental rotation tasks implied the comparison of different sorts of stimulus pairs, viz. pictures of hands and pictures of tools, which were either identical or mirror im...

journal_title：NeuroImage

authors： Vingerhoets G,de Lange FP,Vandemaele P,Deblaere K,Achten E

更新日期：2002-11-01 00:00:00

abstract：:Functional studies of auditory spatial attention generally report enhanced neural responses in auditory cortical regions. However, activity in regions of the spatial attentional network as described in the visual modality is not consistently observed. Data analysis limitations due to oppositely lateralized activity de...

journal_title：NeuroImage

authors： Lipschutz B,Kolinsky R,Damhaut P,Wikler D,Goldman S

更新日期：2002-10-01 00:00:00

abstract：:Caffeine is the most widely used stimulant in the world. The stimulant effects of caffeine are mediated through its antagonistic properties on neuronal adenosine receptors. In addition, caffeine blocks neurovascular adenosine receptors and decreases cerebral perfusion. Although the effects of caffeine on blood oxygena...

journal_title：NeuroImage

authors： Laurienti PJ,Field AS,Burdette JH,Maldjian JA,Yen YF,Moody DM

更新日期：2002-10-01 00:00:00

abstract：:The extent to which visual word perception engages speech codes (i.e., phonological recoding) remains a crucial question in understanding mechanisms of reading. In this study, we used functional magnetic resonance imaging techniques combined with behavioral response measures to examine neural responses to focused vers...

journal_title：NeuroImage

authors： Xu B,Grafman J,Gaillard WD,Spanaki M,Ishii K,Balsamo L,Makale M,Theodore WH

更新日期：2002-10-01 00:00:00

abstract：:The aim of this novel technique is to allow researchers, particularly those operating at high static magnetic field strengths on fMRI applications, to tailor the static magnetic field within the brain. The optimum solution for their experimental needs is reached, utilizing the full potential of the active shims at the...

journal_title：NeuroImage

authors： Wilson JL,Jenkinson M,de Araujo I,Kringelbach ML,Rolls ET,Jezzard P

更新日期：2002-10-01 00:00:00

abstract：:A recent meta-analysis has shown precuneus, angular gyri, anterior cingulate gyri, and adjacent structures to be highly metabolically active in support of resting consciousness. We hypothesize that these regions constitute a functional network of reflective self-awareness thought to be a core function of consciousness...

journal_title：NeuroImage

authors： Kjaer TW,Nowak M,Lou HC

更新日期：2002-10-01 00:00:00