Complex spatio-temporal dynamics of fMRI BOLD: A study of motor learning.

abstract：:The neural processes that support inhibitory control in the face of stimuli with a history of reward association are not yet well understood. Yet, the ability to flexibly adapt behavior to changing reward-contingency contexts is important for daily functioning and warrants further investigation. This study aimed to ch...

journal_title：NeuroImage

authors： Meyer KN,Davidow JY,Van Dijk KRA,Santillana RM,Snyder J,Bustamante CMV,Hollinshead M,Rosen BR,Somerville LH,Sheridan MA

更新日期：2020-12-13 00:00:00

abstract：:Understanding how humans code for and respond to environmental uncertainty/regularity is a question shared by current computational and neurobiological approaches to human cognition. To date, studies investigating neurobiological systems that track input uncertainty have examined responses to uni-sensory streams. It i...

journal_title：NeuroImage

authors： Andric M,Davis B,Hasson U

更新日期：2017-08-15 00:00:00

abstract：:Magnetic resonance imaging of neuronal connectivity in vivo opens up the possibility of performing longitudinal investigations on neuronal networks. This is one main reason for the attention that paramagnetic ion manganese (Mn2+) has attracted as a potential anterograde neuronal tracer for MRI experiments. However, th...

journal_title：NeuroImage

authors： Canals S,Beyerlein M,Keller AL,Murayama Y,Logothetis NK

更新日期：2008-04-01 00:00:00

abstract：:A key aspect of human cognitive flexibility concerns the ability to convert complex symbolic instructions into novel behaviors. Previous research proposes that this transformation is supported by two neurocognitive states: an initial declarative maintenance of task knowledge, and an implementation state necessary for ...

journal_title：NeuroImage

authors： González-García C,Formica S,Wisniewski D,Brass M

更新日期：2021-02-01 00:00:00

abstract：:The dynamic and flexible nature of memories is evident in our ability to adopt multiple visual perspectives. Although autobiographical memories are typically encoded from the visual perspective of our own eyes they can be retrieved from the perspective of an observer looking at our self. Here, we examined the neural m...

journal_title：NeuroImage

authors： St Jacques PL,Szpunar KK,Schacter DL

更新日期：2017-03-01 00:00:00

abstract：:Animal and human studies have frequently shown that in primary sensory and motor regions the BOLD signal correlates positively with high-frequency and negatively with low-frequency neuronal activity. However, recent evidence suggests that this relationship may also vary across cortical areas. Detailed knowledge of the...

journal_title：NeuroImage

authors： Kujala J,Sudre G,Vartiainen J,Liljeström M,Mitchell T,Salmelin R

更新日期：2014-05-15 00:00:00

abstract：:Recent data from lesion and brain imaging studies have questioned the well-established assumption of a close functional-anatomic link between syntax and Broca's area and semantics and Wernicke's area. In the present study we used functional magnetic resonance imaging (fMRI) to investigate the neuroanatomical correlate...

journal_title：NeuroImage

authors： Röder B,Stock O,Neville H,Bien S,Rösler F

更新日期：2002-04-01 00:00:00

abstract：:Linguistic experience alters an individual's perception of speech. We here provide evidence of the effects of language experience at the neural level from two magnetoencephalography (MEG) studies that compare adult American and Japanese listeners' phonetic processing. The experimental stimuli were American English /ra...

journal_title：NeuroImage

authors： Zhang Y,Kuhl PK,Imada T,Kotani M,Tohkura Y

更新日期：2005-07-01 00:00:00

abstract：:Immuno-electron microscopic and beta-microprobe studies have demonstrated that the internalization of serotonin 5-HT(1A) autoreceptors, after acute treatment with the selective 5-HT(1A) receptor agonist 8-OH-DPAT or with the specific serotonin reuptake inhibitor (SSRI) fluoxetine, is associated with a marked decrease ...

journal_title：NeuroImage

authors： Aznavour N,Rbah L,Riad M,Reilhac A,Costes N,Descarries L,Zimmer L

更新日期：2006-11-15 00:00:00

abstract：:A new rotation-invariant spherical harmonic decomposition (SHD) method is proposed in this paper for analyzing high angular resolution diffusion (HARD) imaging. Regular SHD methods have been used to characterize the features of the apparent diffusion coefficient (ADC) profile measured by the HARD technique. However, t...

journal_title：NeuroImage

authors： Zhan W,Stein EA,Yang Y

更新日期：2006-02-15 00:00:00

abstract：:Until recently, investigating microscopic changes in the integrity of human brain matter has not been possible in vivo. It has hence remained unknown whether and how small non-pathological variations in cytoskeletal neuronal integrity affect human cognitive functioning. We investigated the role of neuronal cytoskeleto...

journal_title：NeuroImage

authors： Beste C,Stock AK,Zink N,Ocklenburg S,Akgün K,Ziemssen T

更新日期：2019-01-15 00:00:00

abstract：:The ability to regulate emotion is crucial to promote well-being. Evidence suggests that the medial prefrontal cortex (mPFC) and adjacent anterior cingulate (ACC) modulate amygdala activity during emotion regulation. Yet less is known about whether the amygdala-mPFC circuit is linked with regulation of the autonomic n...

journal_title：NeuroImage

authors： Sakaki M,Yoo HJ,Nga L,Lee TH,Thayer JF,Mather M

更新日期：2016-10-01 00:00:00

abstract：:Previous studies suggest that spontaneous fluctuations in the resting-state fMRI (RS-fMRI) signal may reflect fluctuations in transverse relaxation time (T(2)(*)) rather than spin density (S(0)). However, such S(0) and T(2)(*) features have not been well characterized. In this study, spatial and spectral characteristi...

journal_title：NeuroImage

authors： Wu CW,Gu H,Zou Q,Lu H,Stein EA,Yang Y

更新日期：2012-02-15 00:00:00

abstract：:The present study reported the development of a novel functional photoacoustic microscopy (fPAM) system for investigating hemodynamic changes in rat cortical vessels associated with electrical forepaw stimulation. Imaging of blood optical absorption by fPAM at multiple appropriately-selected and distinct wavelengths c...

journal_title：NeuroImage

authors： Liao LD,Li ML,Lai HY,Shih YY,Lo YC,Tsang S,Chao PC,Lin CT,Jaw FS,Chen YY

更新日期：2010-08-15 00:00:00

abstract：:Neuroimagingstudies with positron emission tomography (PET) and functional magnetic resonance imaging (fMRI) have begun to describe the functional neuroanatomy of emotion. Taken separately, specific studies vary in task dimensions and in type(s) of emotion studied and are limited by statistical power and sensitivity. ...

journal_title：NeuroImage

authors： Phan KL,Wager T,Taylor SF,Liberzon I

更新日期：2002-06-01 00:00:00

abstract：:Many cognitive theories of semantic organization stem from reports of patients with selective, category-specific deficits for particular classes of objects (e.g., fruit). The anatomical assumptions underlying the competing claims can be evaluated with functional neuroimaging but the findings to date have been inconsis...

journal_title：NeuroImage

authors： Devlin JT,Moore CJ,Mummery CJ,Gorno-Tempini ML,Phillips JA,Noppeney U,Frackowiak RS,Friston KJ,Price CJ

更新日期：2002-03-01 00:00:00

abstract：:We used magnetic resonance imaging (MRI) and cortical pattern matching to map differences in cortical gray matter deficits between Alzheimer's disease (AD) and dementia with Lewy bodies (DLB), and explored the possible influence of gender on these patterns. Twenty-nine patients with AD (age 77.9 +/- 5.5), 16 patients ...

journal_title：NeuroImage

authors： Ballmaier M,O'Brien JT,Burton EJ,Thompson PM,Rex DE,Narr KL,McKeith IG,DeLuca H,Toga AW

更新日期：2004-09-01 00:00:00

abstract：:Transcranial direct current stimulation (tDCS) can up- and down-regulate cortical excitability depending on current direction, however our abilities to measure brain-tissue effects of the stimulation and its after-effects have been limited so far. We used regional cerebral blood flow (rCBF), a surrogate measure of bra...

journal_title：NeuroImage

authors： Zheng X,Alsop DC,Schlaug G

更新日期：2011-09-01 00:00:00

abstract：:In the motion aftereffect (MAE), adapting to a moving stimulus causes a subsequently presented stationary stimulus to appear to move in the opposite direction. Recently, the neural basis of the motion aftereffect has received considerable interest, and a number of brain areas have been implicated in the generation of ...

journal_title：NeuroImage

authors： Hogendoorn H,Verstraten FA

更新日期：2013-11-15 00:00:00

abstract：:Susceptometry-based oximetry (SBO) and T2-relaxation-under-spin-tagging (TRUST) are two promising methods for quantifying the cerebral metabolic rate of oxygen (CMRO2), a critical parameter of brain function. We present a combined method, interleaved TRUST (iTRUST), which achieves rapid, simultaneous quantification of...

journal_title：NeuroImage

authors： Rodgers ZB,Englund EK,Langham MC,Magland JF,Wehrli FW

更新日期：2015-02-01 00:00:00

abstract：:Near-infrared spectroscopy (NIRS) measures slow hemodynamic signals noninvasively to indirectly infer the neuronal activity in the brain. However, it remains a controversy on whether this optical measurement technique can detect the optical neuronal signal, which reflects the optical changes directly associated with n...

journal_title：NeuroImage

authors： Sun B,Zhang L,Gong H,Sun J,Luo Q

更新日期：2014-02-15 00:00:00

abstract：:Status epilepticus is an emergency condition in patients with prolonged seizure or recurrent seizures without full recovery between them. The pathophysiological mechanisms of status epilepticus are not well established. With this argument, we use a computational modeling approach combined with in vivo electrophysiolog...

journal_title：NeuroImage

authors： López-Cuevas A,Castillo-Toledo B,Medina-Ceja L,Ventura-Mejía C

更新日期：2015-06-01 00:00:00

abstract：:It has been shown repeatedly that perceiving itch-related pictures or listening to a lecture on itch can enhance itch sensation and scratching behaviour (Niemeier and Gieler, 2000; Holle et al., 2012; Lloyd et al., 2013), indicating that itch is strongly influenced by expectations. Using fMRI, we investigated the neur...

journal_title：NeuroImage

authors： van de Sand MF,Menz MM,Sprenger C,Büchel C

更新日期：2018-02-01 00:00:00

abstract：:The chronology of the component processes subserving working memory (WM) and hemodynamic response lags has hindered the use of fMRI for exploring neural substrates of WM. In the present study, however, participants completed full trials that involved encoding two or six letters, maintaining the memory set over a delay...

journal_title：NeuroImage

authors： Motes MA,Rypma B

更新日期：2010-01-15 00:00:00

abstract：:Movements result from a complex interplay of multiple brain regions. These regions are assembled into distinct functional networks depending on the specific properties of the action. However, the nature and details of the dynamics of this complex assembly process are unknown. In this study, we sought to identify key m...

journal_title：NeuroImage

authors： Popovych S,Rosjat N,Toth TI,Wang BA,Liu L,Abdollahi RO,Viswanathan S,Grefkes C,Fink GR,Daun S

更新日期：2016-10-01 00:00:00

abstract：:Recent studies of blood oxygenation level dependent (BOLD) signal responses averaged over a region of interest have demonstrated that the response is nonlinear with respect to stimulus duration. Specifically, shorter duration stimuli produce signal changes larger than expected from a linear system. The focus of this s...

journal_title：NeuroImage

authors： Birn RM,Saad ZS,Bandettini PA

更新日期：2001-10-01 00:00:00

abstract：:Perceptual similarity is a cognitive judgment that represents the end-stage of a complex cascade of hierarchical processing throughout visual cortex. Previous studies have shown a correspondence between the similarity of coarse-scale fMRI activation patterns and the perceived similarity of visual stimuli, suggesting t...

journal_title：NeuroImage

authors： Wardle SG,Kriegeskorte N,Grootswagers T,Khaligh-Razavi SM,Carlson TA

更新日期：2016-05-15 00:00:00

abstract：:Episodic retrieval is supported by multiple forms of cognitive control that depend on prefrontal cortex. However, within prefrontal cortex, the regional specificity for different control processes is still largely underspecified. Here we used fMRI to investigate the processes involved in part-list cueing, a phenomenon...

journal_title：NeuroImage

authors： Crescentini C,Shallice T,Del Missier F,Macaluso E

更新日期：2010-04-01 00:00:00

abstract：:The present fMRI study investigated the hypothesis that activation of the left ventral occipitotemporal cortex (vOT) in response to auditory words can be attributed to lexical orthographic rather than lexico-semantic processing. To this end, we presented auditory words in both an orthographic ("three or four letter wo...

journal_title：NeuroImage

authors： Ludersdorfer P,Wimmer H,Richlan F,Schurz M,Hutzler F,Kronbichler M

更新日期：2016-01-01 00:00:00

abstract：:Visual processing is a complex task which is best investigated using sensitive multivariate analysis methods that can capture representation-specific brain activity over both time and space. In this study, we applied a multivariate decoding algorithm to MEG data of subjects engaged in passive viewing of images of face...

journal_title：NeuroImage

authors： van de Nieuwenhuijzen ME,Backus AR,Bahramisharif A,Doeller CF,Jensen O,van Gerven MA

更新日期：2013-12-01 00:00:00