Characterizing the relationship between BOLD contrast and regional cerebral blood flow measurements by varying the stimulus presentation rate.

abstract：:Multiecho T(2) relaxation measurements offer specific information about myelin content through the myelin water fraction (MWF), as well as about the water environments through the intra- and extra-cellular (IE), and global, geometric mean T(2) (GMT(2)) times. While these measurements have yielded new insights into bra...

journal_title：NeuroImage

authors： MacMillan EL,Mädler B,Fichtner N,Dvorak MF,Li DK,Curt A,MacKay AL

更新日期：2011-01-15 00:00:00

abstract：:Depression is the most frequent psychiatric disorder in Parkinson's disease (PD). Although evidence suggests that depression in PD is related to the degenerative process that underlies the disease, further studies are necessary to better understand the neural basis of depression in this population of patients. In orde...

journal_title：NeuroImage

authors： Cardoso EF,Maia FM,Fregni F,Myczkowski ML,Melo LM,Sato JR,Marcolin MA,Rigonatti SP,Cruz AC Jr,Barbosa ER,Amaro E Jr

更新日期：2009-08-15 00:00:00

abstract：:Studies have shown that T2* contrast can reveal features of cortical anatomy. However, understanding the relationship between T2* contrast and the underlying cyto- and myelo-architecture is not an easy task, given the number of confounds, such as myelin, iron, blood vessels and structure orientation. Moreover, it is d...

journal_title：NeuroImage

authors： Cohen-Adad J

更新日期：2014-06-01 00:00:00

abstract：:Reliable quantitative analysis of white matter connectivity in the brain is an open problem in neuroimaging, with common solutions requiring tools for fiber tracking, tractography segmentation and estimation of intersubject correspondence. This paper proposes a novel, template matching approach to the problem. In the ...

journal_title：NeuroImage

authors： Eckstein I,Shattuck DW,Stein JL,McMahon KL,de Zubicaray G,Wright MJ,Thompson PM,Toga AW

更新日期：2009-08-01 00:00:00

abstract：:Aging is associated with gradual alterations in the neurochemical characteristics of the brain, which can be assessed in-vivo with proton-magnetic resonance spectroscopy (1H-MRS). However, the impact of these age-related neurochemical changes on functional motor behavior is still poorly understood. Here, we address th...

journal_title：NeuroImage

authors： Levin O,Weerasekera A,King BR,Heise KF,Sima DM,Chalavi S,Maes C,Peeters R,Sunaert S,Cuypers K,Van Huffel S,Mantini D,Himmelreich U,Swinnen SP

更新日期：2019-11-15 00:00:00

abstract：:Fetal alcohol spectrum disorders (FASDs) comprise a wide range of neurological deficits that result from fetal exposure to ethanol (EtOH), and are the leading cause of environmentally related birth defects and mental retardation in the western world. One aspect of diagnostic and therapeutic intervention strategies tha...

journal_title：NeuroImage

authors： Leigland LA,Budde MD,Cornea A,Kroenke CD

更新日期：2013-12-01 00:00:00

abstract：:We present methods for the quantitative analysis of brain growth based on the registration of longitudinal MR image data with the use of Jacobian determinant maps to characterise neuroanatomical changes. The individual anatomies, growth maps and tissue classes are also spatially normalised in an 'average space' and ag...

journal_title：NeuroImage

authors： Aljabar P,Bhatia KK,Murgasova M,Hajnal JV,Boardman JP,Srinivasan L,Rutherford MA,Dyet LE,Edwards AD,Rueckert D

更新日期：2008-01-01 00:00:00

abstract：:Repetition suppression, a robust phenomenon of reduction in neural responses to stimulus repetition, is suggested to consist of a combination of bottom-up adaptation and top-down prediction effects. However, there is little consensus on how repetition suppression is related to attention in functional magnetic resonanc...

journal_title：NeuroImage

authors： Hsu YF,Hämäläinen JA,Waszak F

更新日期：2014-09-01 00:00:00

abstract：:According to a classical view of visual object recognition, targets are detected "pre-attentively" if they carry unique features, whereas attention has to be deployed serially to object locations for feature binding if the targets can be distinguished from distracters only in terms of their feature conjunctions. Consi...

journal_title：NeuroImage

authors： Donner TH,Kettermann A,Diesch E,Ostendorf F,Villringer A,Brandt SA

更新日期：2002-01-01 00:00:00

abstract：:Establishing baseline MRI biomarkers for normal brain aging is significant and valuable for separating normal changes in the brain structure and function from different neurological diseases. In this paper for the first time we have simultaneously measured a variety of tissue specific contributions defining R2* relaxa...

journal_title：NeuroImage

authors： Zhao Y,Wen J,Cross AH,Yablonskiy DA

更新日期：2016-06-01 00:00:00

abstract：:Resting state functional connectivity, which is defined as temporal correlation of spontaneous activity between diverse brain regions, has been reported to form resting state networks (RSNs), consisting of a specific set of brain regions, based on functional magnetic resonance imaging (fMRI). Recently, studies using n...

journal_title：NeuroImage

authors： Sasai S,Homae F,Watanabe H,Sasaki AT,Tanabe HC,Sadato N,Taga G

更新日期：2012-10-15 00:00:00

abstract：:Breathing carbogen (5% CO2 / 95% O2) dramatically increases cerebral blood flow (CBF), which induces a blood oxygenation level dependent (BOLD) related vascular signal change due to the concomitantly increased oxyhemoglobin concentration in the veins. However, carbogen often causes discomfort due to its forced strong ...

journal_title：NeuroImage

authors： Sedlacik J,Kutschbach C,Rauscher A,Deistung A,Reichenbach JR

更新日期：2008-10-15 00:00:00

abstract：:Processing of fear is of crucial importance for human survival and it can generally occur at explicit and implicit conditions. It is worth noting that explicit and implicit fear processing produces different behavioral and neurophysiological outcomes. The present study capitalizes on the Activation Likelihood Estimati...

journal_title：NeuroImage

authors： Tao D,He Z,Lin Y,Liu C,Tao Q

更新日期：2020-12-26 00:00:00

abstract：:Scientists and clinicians have traditionally targeted single brain regions with stimulation to modulate brain function and disease. However, brain regions do not operate in isolation, but interact with other regions through networks. As such, stimulation of one region may impact and be impacted by other regions in its...

journal_title：NeuroImage

authors： Fischer DB,Fried PJ,Ruffini G,Ripolles O,Salvador R,Banus J,Ketchabaw WT,Santarnecchi E,Pascual-Leone A,Fox MD

更新日期：2017-08-15 00:00:00

abstract：:Chemical Exchange Saturation Transfer (CEST) has been used to assess healthy and pathological tissue in both animals and humans. However, the CEST signal from blood has not been fully assessed. This paper presents the CEST and nuclear Overhauser enhancement (NOE) signals detected in human blood measured via z-spectrum...

journal_title：NeuroImage

authors： Shah SM,Mougin OE,Carradus AJ,Geades N,Dury R,Morley W,Gowland PA

更新日期：2018-02-15 00:00:00

abstract：:Demanding cognitive tasks are sometimes carried out under stressful conditions. Several studies indicate that whereas severe stress impairs performance, moderate stress can enhance cognitive performance. In this study, we investigated how moderate stress influences the neural systems supporting working memory. We embe...

journal_title：NeuroImage

authors： Cousijn H,Rijpkema M,Qin S,van Wingen GA,Fernández G

更新日期：2012-01-16 00:00:00

abstract：:Measurement of changes in brain cortical thickness is useful for the assessment of regional gray matter atrophy in neurodegenerative conditions. A new longitudinal method, called CLADA (cortical longitudinal atrophy detection algorithm), has been developed for the measurement of changes in cortical thickness in magnet...

journal_title：NeuroImage

authors： Nakamura K,Fox R,Fisher E

更新日期：2011-01-01 00:00:00

abstract：:We sought to determine the feasibility of directly studying neural tissue activity by analysis of differential phase shifts in MRI signals that occurred when trickle currents were applied to a bath containing active or resting neural tissue. We developed a finite element bidomain model of an aplysia abdominal ganglion...

journal_title：NeuroImage

authors： Sadleir RJ,Grant SC,Woo EJ

更新日期：2010-08-01 00:00:00

abstract：:The delayed appearance of motor symptoms in PD poses a crucial challenge for early detection of the disease. We measured the binding potential of the selective dopamine active transporter (DAT) radiotracer [(11)C]PE2I in MPTP-treated macaque monkeys, thus establishing a detailed profile of the nigrostriatal DA status ...

journal_title：NeuroImage

authors： Vezoli J,Dzahini K,Costes N,Wilson CR,Fifel K,Cooper HM,Kennedy H,Procyk E

更新日期：2014-11-15 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：:Cognition that is not based on perception can lead to at least two different outcomes. In some situations, cognition that is independent of perception can allow actions to be selected other than those prescribed by immediate perceptual input. In others, cognition can be independent of perception and unrelated to the c...

journal_title：NeuroImage

authors： Smallwood J,Tipper C,Brown K,Baird B,Engen H,Michaels JR,Grafton S,Schooler JW

更新日期：2013-04-01 00:00:00

abstract：:Functional MRI (fMRI) studies of jaw motion, speech, and swallowing disorders have been hampered by motion artifacts. Tissue motion perturbs the static magnetic field, creating geometric distortions in echo-planar images that lead to many false positives in activation maps. These problems have restricted blood oxygena...

journal_title：NeuroImage

authors： Soltysik DA,Hyde JS

更新日期：2006-02-15 00:00:00

abstract：:While the ability of near-infrared spectroscopy (NIRS) to measure cerebral hemodynamic evoked responses (slow optical signal) is well established, its ability to measure non-invasively the 'fast optical signal' is still controversial. Here, we aim to determine the feasibility of performing NIRS measurements of the 'fa...

journal_title：NeuroImage

authors： Radhakrishnan H,Vanduffel W,Deng HP,Ekstrom L,Boas DA,Franceschini MA

更新日期：2009-04-01 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：: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：:There is uncertainty introduced when a cortical surface based model derived from an anatomical MRI is used to reconstruct neural activity with MEG data. This is a specific case of a problem with uncertainty in parameters on which M/EEG lead fields depend non-linearly. Here we present a general mathematical treatment o...

journal_title：NeuroImage

authors： López JD,Penny WD,Espinosa JJ,Barnes GR

更新日期：2012-04-02 00:00:00

abstract：:Sex hormones and the serotonergic system interact in the regulation of mood, learning, memory and sexual behaviour. However, the mechanisms have not been fully explored. The serotonin transporter protein (5-HTT) regulates synaptic concentrations of serotonin and is a primary target for selective serotonin reuptake inh...

journal_title：NeuroImage

authors： Jovanovic H,Kocoska-Maras L,Rådestad AF,Halldin C,Borg J,Hirschberg AL,Nordström AL

更新日期：2015-02-01 00:00:00

abstract：:We use an fMRI adaptation paradigm to explore the selectivity of human responses in the lateral geniculate nucleus (LGN) and superior colliculus (SC) to red-green color and achromatic contrast. We measured responses to red-green (RG) and achromatic (ACH) high contrast sinewave counter-phasing rings with and without ad...

journal_title：NeuroImage

authors： Chang DHF,Hess RF,Mullen KT

更新日期：2016-09-01 00:00:00

abstract：:Developmental differences in brain activation of 9- to 15-year-old children were examined during an auditory rhyme decision task to spoken words using functional magnetic resonance imaging (fMRI). As a group, children showed activation in the left superior/middle temporal gyri (BA 22, 21), right middle temporal gyrus ...

journal_title：NeuroImage

authors： Cone NE,Burman DD,Bitan T,Bolger DJ,Booth JR

更新日期：2008-06-01 00:00:00

abstract：:The relationship between anatomic and resting state functional connectivity of large-scale brain networks is a major focus of current research. In previous work, we introduced a model based on eigen decomposition of the Laplacian which predicts the functional network from the structural network in healthy brains. In t...

journal_title：NeuroImage

authors： Abdelnour F,Dayan M,Devinsky O,Thesen T,Raj A

更新日期：2020-12-30 00:00:00