Abstract:
:Results of this PET-O15 water activation study confirm the implication of supplementary motor areas during time estimation tasks. They also show that the cortical-subcortical network associated with temporal processing is impaired in schizophrenia. Following recent proposals of time dynamic networks, this impairment may consist in a dysfunctional imbalance of early failure of supplementary motor activation during temporal processing.
journal_name
Neuroimagejournal_title
NeuroImageauthors
Ortuño FM,Lopez P,Ojeda N,Cervera Sdoi
10.1016/j.neuroimage.2004.09.010keywords:
subject
Has Abstractpub_date
2005-01-15 00:00:00pages
575-9issue
2eissn
1053-8119issn
1095-9572pii
S1053-8119(04)00524-5journal_volume
24pub_type
杂志文章相关文献
NEUROIMAGE文献大全abstract::Previous PET and fMRI brain imaging studies targeting neural networks processing itch sensation have used histamine as the sole itch inducer. In contrast with histamine, cowhage-induced itch is mediated via proteinase activated receptors PAR2 and is transmitted through a separate spinothalamic pathway, therefore imagi...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2011.10.099
更新日期:2012-02-15 00:00:00
abstract::Cross-sectional and longitudinal volumetric studies suggest that the corpus callosum (CC) continues to mature structurally from infancy to adulthood. Diffusion tensor imaging (DTI) provides in vivo information about the directional organization of white matter microstructure and shows potential for elucidating even mo...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2007.10.018
更新日期:2008-02-15 00:00:00
abstract::Simultaneous recording of electroencephalography (EEG) and functional magnetic resonance imaging (fMRI) is now widely accepted as a prevailing tool to study brain functions. For over a decade, EEG caps with high-dense arrays of electrodes for EEG-fMRI studies in humans have been commercially available. However, simult...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2010.09.056
更新日期:2011-02-01 00:00:00
abstract:INTRODUCTION:Advances in image segmentation of magnetic resonance images (MRI) have demonstrated that multi-atlas approaches improve segmentation over regular atlas-based approaches. These approaches often rely on a large number of manually segmented atlases (e.g. 30-80) that take significant time and expertise to prod...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2014.04.054
更新日期:2014-11-01 00:00:00
abstract::The development of in vivo brain imaging has lead to the collection of large quantities of digital information. In any individual research article, several tens of gigabytes-worth of data may be represented-collected across normal and patient samples. With the ease of collecting such data, there is increased desire fo...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2009.03.086
更新日期:2009-10-01 00:00:00
abstract::The temporal structure of self-generated cognition is a key attribute to the formation of a meaningful stream of consciousness. When at rest, our mind wanders from thought to thought in distinct mental states. Despite the marked importance of ongoing mental processes, it is challenging to capture and relate these stat...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2019.03.029
更新日期:2019-07-01 00:00:00
abstract::In this paper, we propose a new automated procedure for lesion identification from single images based on the detection of outlier voxels. We demonstrate the utility of this procedure using artificial and real lesions. The scheme rests on two innovations: First, we augment the generative model used for combined segmen...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2008.03.028
更新日期:2008-07-15 00:00:00
abstract::We review our recent data obtained on the cortical and subcortical components of the human sympathetic connectome - the network of regions involved in the sympathetic control of blood pressure. Specifically, we functionally identified the human homologue of the rostral ventrolateral medulla (RVLM), the primary premoto...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2019.116119
更新日期:2019-11-15 00:00:00
abstract::Brain slices provide a useful nervous tissue model to investigate the relationships between magnetic resonance imaging (MRI) contrast mechanisms and tissue microstructure; yet, these acutely isolated tissues remain viable for only 10-12 h. To study slower biological processes, this work describes the first MRI microsc...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2005.10.020
更新日期:2006-04-15 00:00:00
abstract::Conflicting theories identify creativity either with frontal-lobe mediated (Type-2) executive control processes or (Type-1) associative processes that are disinhibited when executive control is relaxed. Musical (jazz) improvisation is an ecologically valid test-case to distinguish between these views because relativel...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2020.116632
更新日期:2020-06-01 00:00:00
abstract::The anterior cingulate cortex (ACC) is implicated in performance monitoring and cognitive control. Non-human primate studies of ACC show prominent reward signals, but these are elusive in human studies, which instead show mainly conflict and error effects. Here we demonstrate distinct appetitive and aversive activity ...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2009.11.065
更新日期:2010-02-15 00:00:00
abstract::Connectivity and network analysis in neuroscience has been applied to multiple spatial scales, but the links between these different scales have rarely been investigated. In tumor-related epilepsy, altered network topology is related to behavior, but the molecular basis of these observations is unknown. We elucidate t...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2013.02.067
更新日期:2013-07-15 00:00:00
abstract::White matter hyperintensities (WMHs) are commonly seen on brain magnetic resonance imaging (MRI) scans of elderly individuals, but their functional significance remains controversial. We used perfusion-weighted MRI to determine the impact of WMHs on cortical regional cerebral blood volume (rCBV). We studied 24 elderly...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2003.11.015
更新日期:2004-04-01 00:00:00
abstract::Motor performance recovery after a demanding finger motor task does not follow the excitability dynamics of primary motor cortex (M1), which remains depressed also when performance is restored. Thus, other neural circuits are supposed to cope with central fatigue, re-establishing adequate motor performance levels. A h...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2012.10.012
更新日期:2013-01-15 00:00:00
abstract::After lesions of the somatosensory dorsal column (DC) pathway, the cortical hand representation can become unresponsive to tactile stimuli, but considerable responsiveness returns over weeks of post-lesion recovery. The reactivation suggests that preserved subthreshold sensory inputs become potentiated and axon sprout...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2016.08.015
更新日期:2016-11-15 00:00:00
abstract::The medial prefrontal cortex (mPFC) is reliably activated by both performance and prediction errors. Error signals have typically been treated as a scalar, and it is unknown to what extent multiple error signals may co-exist within mPFC. Previous studies have shown that lateral frontal cortex (LFC) is arranged in a hi...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2015.08.063
更新日期:2016-01-01 00:00:00
abstract::This paper investigates the relationship between the blood oxygenation level dependent (BOLD) contrast effect and regional cerebral blood flow using the techniques of functional MRI (fMRI) and positron emission tomography (PET). A passive listening paradigm with parametric variation in word presentation rate was used ...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1006/nimg.1997.0300
更新日期:1997-11-01 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
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.neuroimage.2014.01.057
更新日期:2014-05-15 00:00:00
abstract::A polymorphism of the human Brain Derived Neurotrophic Factor (BDNF) gene that produces a valine-to-methionine substitution at codon 66 (Val66Met) is linked to adult anxiety and mood disorders, possibly through effects on brain circuitry function. Associations between BDNF gene variants and brain activity have not bee...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2009.11.026
更新日期:2010-11-15 00:00:00
abstract::Spatial smoothing is an important post-processing procedure that is used to increase the signal-to-noise ratio (SNR) of blood oxygenation level-dependent signals (BOLD) in common functional magnetic resonance imaging (fMRI) applications. However, recent studies have shown that smoothing artificially shifts probabilist...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2007.12.036
更新日期:2008-04-15 00:00:00
abstract::The ability to perceive facial expressions of emotion is essential for effective social communication. We investigated how the perception of facial expression emerges from the image properties that convey this important social signal, and how neural responses in face-selective brain regions might track these propertie...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2016.01.041
更新日期:2016-04-01 00:00:00
abstract::In a genome-wide association study (GWAS) of late-onset Alzheimer's disease (AD), we found an association between common haplotypes of the GAB2 gene and AD risk in carriers of the apolipoprotein E (APOE) ε4 allele, the major late-onset AD susceptibility gene. We previously proposed the use of fluorodeoxyglucose positr...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2010.09.066
更新日期:2011-02-01 00:00:00
abstract::Paradigms drawn from cognitive psychology have provided new insight into covert stages of action. These states include not only intending actions that will eventually be executed, but also imagining actions, recognizing tools, learning by observation, or even understanding the behavior of other people. Studies using t...
journal_title:NeuroImage
pub_type: 杂志文章,评审
doi:10.1006/nimg.2001.0832
更新日期:2001-07-01 00:00:00
abstract::Developmental research, as well as paediatric clinical activity crucially depends on non-invasive and painless brain recording techniques, such as electroencephalography (EEG), and near infrared spectroscopy (NIRS). However, both of these techniques measure cortical activity from the scalp without precise knowledge of...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2014.05.046
更新日期:2014-10-01 00:00:00
abstract::Exploratory analysis of functional MRI data allows activation to be detected even if the time course differs from that which is expected. Independent Component Analysis (ICA) has emerged as a powerful approach, but current extensions to the analysis of group studies suffer from a number of drawbacks: they can be compu...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2010.11.010
更新日期:2011-03-01 00:00:00
abstract::Positive affect elicited in a mother toward her newborn infant may be one of the most powerful and evolutionarily preserved forms of positive affect in the emotional landscape of human behavior. This study examined the neurobiology of this form of positive emotion and in so doing, sought to overcome the difficulty of ...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2003.10.005
更新日期:2004-02-01 00:00:00
abstract::Unilateral sensory stimulation reliably elicits contralateral somatotopic activation of primary (SI) and secondary (SII) somatosensory cortex. There is an ongoing debate about the occurrence and nature of concomitant ipsilateral SI and SII activation. Here we used functional magnetic resonance imaging (fMRI) in health...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2007.05.038
更新日期:2007-09-01 00:00:00
abstract::This paper examines a Bayesian random effects modelling approach to the analysis of multiple-directions diffusion-weighted MR data, with a focus on the crossing-fibre problem. Various models were investigated including a spatial (Markov random field) model, an exchangeable model and the Besag-York-Mollie model, which ...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2008.09.058
更新日期:2009-02-01 00:00:00
abstract::Brain extraction, or skull-stripping, is an essential pre-processing step in neuro-imaging that has a direct impact on the quality of all subsequent processing and analyses steps. It is also a key requirement in multi-institutional collaborations to comply with privacy-preserving regulations. Existing automated method...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2020.117081
更新日期:2020-10-15 00:00:00
abstract::Segmentation and representation of the human cerebral cortex from magnetic resonance (MR) images play an important role in neuroscience and medicine. A successful segmentation method must be robust to various imaging artifacts and produce anatomically meaningful and consistent cortical representations. A method for th...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2004.06.043
更新日期:2004-11-01 00:00:00