Abstract：
:Precise motor control requires the ability to scale the parameters of movement. Theta oscillations across the cortex have been associated with changes in memory, attention, and sensorimotor processing. What has proven more elusive is pinpointing the region-specific frequency band oscillations that are associated with specific parameters of movement during the acceleration and deceleration phases. We report a study using 3D analytic techniques for high density electroencephalography that examines electrocortical dynamics while participants produce upper limb movements to different distances at varying rates. During fast ballistic movements, we observed increased theta band activity in the left motor area contralateral to the moving limb during the acceleration phase of the movement, and theta power correlated with the acceleration of movement. In contrast, beta band activity scaled with the type of movement during the deceleration phase near the end of the movement and correlated with movement time. In the ipsilateral motor and somatosensory area, alpha band activity decreased with the type of movement near the end of the movement, and gamma band activity in visual cortex increased with the type of movement near the end of the movement. Our results suggest that humans use distinct lateralized cortical activity for distance and speed dependent arm movements. We provide new evidence that a temporary increase in theta band power relates to movement acceleration and is important during movement execution. Further, the theta power increase is coupled with desychronization of beta band power and alpha band power which are modulated by the task near the end of movement.
journal_name
Neuroimagejournal_title
NeuroImageauthors
Ofori E,Coombes SA,Vaillancourt DEdoi
10.1016/j.neuroimage.2015.04.043subject
Has Abstractpub_date
2015-07-15 00:00:00pages
30-41eissn
1053-8119issn
1095-9572pii
S1053-8119(15)00343-2journal_volume
115pub_type
杂志文章相关文献
NEUROIMAGE文献大全abstract：:Event-related potentials (ERPs) were used to trace changes in brain activity related to progress in second language learning. Twelve English-speaking exchange students learning German in Switzerland were recruited. ERPs to visually presented single words from the subjects' native language (English), second language (G...
journal_title：NeuroImage
pub_type： 杂志文章
doi：10.1016/j.neuroimage.2006.07.008
更新日期：2006-11-01 00:00:00
abstract：:Healthy aging is marked by declines in a variety of cognitive and motor abilities. A better understanding of the aging brain may aid in elucidating the neural substrates of these behavioral effects. Investigations of resting state functional brain connectivity have provided insights into pathology, and to some degree,...
journal_title：NeuroImage
pub_type： 杂志文章
doi：10.1016/j.neuroimage.2013.06.042
更新日期：2013-12-01 00:00:00
abstract：:The ability to regulate emotions is essential for adaptive behavior. This ability is suggested to be mediated by the connectivity between prefrontal brain regions and the amygdala. Yet, it is still unknown whether the ability to regulate emotions can be trained by using a non-emotional procedure, such as the recruitme...
journal_title：NeuroImage
pub_type： 杂志文章
doi：10.1016/j.neuroimage.2015.10.069
更新日期：2016-01-15 00:00:00
abstract：:Ageing generally leads to impairments in cognitive function and the ability to execute and learn new movements. While the causes of these impairments are often multi-factorial, integrity of the cerebellum in an elderly population is an important predictive factor of both motor function and cognitive function. A simila...
journal_title：NeuroImage
pub_type： 杂志文章
doi：10.1016/j.neuroimage.2015.03.084
更新日期：2015-08-01 00:00:00
abstract：:In this fMRI study, we investigated the convergence of underlying neural networks in thinking about a scenario involving one's own intentional action and its consequences and setting up and holding in mind an intention to act. A factorial design was employed comprising two factors: i. Causality (intentional or physica...
journal_title：NeuroImage
pub_type： 杂志文章
doi：10.1016/j.neuroimage.2005.05.001
更新日期：2005-12-01 00:00:00
abstract：:The highly diverse serotonergic system with at least 16 different receptor subtypes is implicated in the pathophysiology of most neuropsychiatric disorders including affective and anxiety disorders, obsessive compulsive disorder, post-traumatic stress disorder, eating disorders, sleep disturbance, attention deficit/hy...
journal_title：NeuroImage
pub_type： 杂志文章
doi：10.1016/j.neuroimage.2012.07.001
更新日期：2012-10-15 00:00:00
abstract：:The neural mechanisms underlying conscious visual perception have been extensively investigated using bistable perception paradigms. Previous functional magnetic resonance imaging (fMRI) and transcranial magnetic stimulation (TMS) studies suggest that the right anterior superior parietal (r-aSPL) and the right posteri...
journal_title：NeuroImage
pub_type： 杂志文章
doi：10.1016/j.neuroimage.2014.12.018
更新日期：2015-02-15 00:00:00
abstract：:Fine-grained activity patterns, as measured with functional magnetic resonance imaging (fMRI), are thought to reflect underlying neural representations. Multivariate analysis techniques, such as representational similarity analysis (RSA), can be used to test models of brain representation by quantifying the representa...
journal_title：NeuroImage
pub_type： 杂志文章
doi：10.1016/j.neuroimage.2018.11.002
更新日期：2019-02-01 00:00:00
abstract：:A clinical hallmark of hypertension is impairment of the cardiac vagal baroreflex, which maintains stable blood pressure and heart rate under physiological conditions. There is also evidence that oxidative stress in the brain is associated with neurogenic hypertension. We tested the hypothesis that an augmented supero...
journal_title：NeuroImage
pub_type： 杂志文章
doi：10.1016/j.neuroimage.2013.05.124
更新日期：2013-11-15 00:00:00
abstract：:This study used arterial spin labeling (ASL) fMRI to measure brain perfusion in a group of healthy men under conditions that closely resembled customary sexual behavior. Serial perfusion measures for 30 min during two self-limited periods of partnered penis stimulation, and during post-stimulatory periods, revealed no...
journal_title：NeuroImage
pub_type： 杂志文章
doi：10.1016/j.neuroimage.2009.12.034
更新日期：2010-03-01 00:00:00
abstract：:The human brain undergoes rapid and dynamic development early in life. Assessment of brain growth patterns relevant to neurological disorders and disease requires a normative population model of growth and variability in order to evaluate deviation from typical development. In this paper, we focus on maturation of bra...
journal_title：NeuroImage
pub_type： 杂志文章
doi：10.1016/j.neuroimage.2012.11.040
更新日期：2013-03-01 00:00:00
abstract：:The superior capability of chess experts largely depends on quick automatic processing skills which are considered to be mediated by the caudate nucleus. We asked whether continued practice or rehearsal of the skill over a long period of time can lead to structural changes in this region. We found that, comparing to n...
journal_title：NeuroImage
pub_type： 杂志文章
doi：10.1016/j.neuroimage.2012.01.047
更新日期：2012-04-02 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：:Despite emerging evidence suggesting a biological basis to our social tiles, our understanding of the neural processes which link two minds is unknown. We implemented a novel approach, which included connectome similarity analysis using resting state intrinsic networks of parent-child dyads as well as daily diaries me...
journal_title：NeuroImage
pub_type： 杂志文章
doi：10.1016/j.neuroimage.2017.02.078
更新日期：2017-05-15 00:00:00
abstract：:Facial emotions express our internal states and are fundamental in social interactions. Here we explore whether the repetition of unattended facial emotions builds up a predictive representation of frequently encountered emotions in the visual system. Participants (n=24) were presented peripherally with facial stimuli...
journal_title：NeuroImage
pub_type： 杂志文章
doi：10.1016/j.neuroimage.2011.10.041
更新日期：2012-02-01 00:00:00
abstract：:We describe BrainSync, an orthogonal transform that allows direct comparison of resting fMRI (rfMRI) time-series across subjects. For this purpose, we exploit the geometry of the rfMRI signal space to propose a novel orthogonal transformation that synchronizes rfMRI time-series across sessions and subjects. When synch...
journal_title：NeuroImage
pub_type： 杂志文章
doi：10.1016/j.neuroimage.2018.01.058
更新日期：2018-05-15 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
pub_type： 杂志文章
doi：10.1016/j.neuroimage.2014.10.061
更新日期：2015-02-01 00:00:00
abstract：BACKGROUND:Once considered mere noise, fMRI-based functional connectivity has become a major neuroscience tool in part due to early studies demonstrating its reliability. These fundamental studies revealed only the tip of the iceberg; over the past decade, many test-retest reliability studies have continued to add nuan...
journal_title：NeuroImage
pub_type： 杂志文章,meta分析
doi：10.1016/j.neuroimage.2019.116157
更新日期：2019-12-01 00:00:00
abstract：:Multi-voxel pattern analysis (MVPA) is a fruitful and increasingly popular complement to traditional univariate methods of analyzing neuroimaging data. We propose to replace the standard 'decoding' approach to searchlight-based MVPA, measuring the performance of a classifier by its accuracy, with a method based on the...
journal_title：NeuroImage
pub_type： 杂志文章
doi：10.1016/j.neuroimage.2013.11.043
更新日期：2014-04-01 00:00:00
abstract：:Subjective feelings of actual/ideal self-discrepancy vary across individuals and influence one's own affective states. However, the neural correlates of actual/ideal self-discrepancy and their genetic individual differences remain unknown. We investigated neural correlates of actual/ideal self-discrepancy and their as...
journal_title：NeuroImage
pub_type： 杂志文章
doi：10.1016/j.neuroimage.2015.08.077
更新日期：2016-01-01 00:00:00
abstract：:The presence of brain edema, in its various forms, is an accompanying feature of many diseased states. Although the localized occurrence of brain edema may be demonstrated with MRI, the quantitative determination of absolute water content, an aspect that could play an important role in the objective evaluation of the ...
journal_title：NeuroImage
pub_type： 杂志文章
doi：10.1016/j.neuroimage.2005.12.063
更新日期：2006-07-01 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
pub_type： 杂志文章
doi：10.1016/j.neuroimage.2004.04.026
更新日期：2004-09-01 00:00:00
abstract：:Preterm birth is a major public health concern, with the severity and occurrence of adverse outcome increasing with earlier delivery. Being born preterm disrupts a time of rapid brain development: in addition to volumetric growth, the cortex folds, myelination is occurring and there are changes on the cellular level. ...
journal_title：NeuroImage
pub_type： 杂志文章
doi：10.1016/j.neuroimage.2015.02.010
更新日期：2015-05-01 00:00:00
abstract：:Neural networks that span the medial temporal lobe (MTL), prefrontal cortex, and posterior cortical regions are essential to episodic memory function in humans. Encoding and retrieval are supported by the engagement of both distinct neural pathways across the cortex and common structures within the medial temporal lob...
journal_title：NeuroImage
pub_type： 杂志文章
doi：10.1016/j.neuroimage.2017.03.042
更新日期：2017-07-15 00:00:00
abstract：:We describe a new measure of Granger causality, componential Granger causality, and show how it can be applied to the identification of the directionality of influences between brain areas with functional neuroimaging data. Componential Granger causality measures the effect of y on x, but allows interaction effects be...
journal_title：NeuroImage
pub_type： 杂志文章
doi：10.1016/j.neuroimage.2011.08.047
更新日期：2012-01-16 00:00:00
abstract：:Intentional action is essential to human behavior, yet its neural basis remains poorly understood. In order to identify neural networks specifically involved in intentional action, freely chosen and externally cued intentions have previously been contrasted. This has led to the identification of a fronto-parietal netw...
journal_title：NeuroImage
pub_type： 杂志文章
doi：10.1016/j.neuroimage.2016.04.044
更新日期：2016-07-01 00:00:00
abstract：INTRODUCTION:To investigate in vivo differences in the distribution of alpha4beta2 subtypes of nAChR using the ligand (123)I-5-Iodo-3-[2(S)-2-azetidinylmethoxy] pyridine (5IA-85380) and single photon emission computed tomography (SPECT) in DLB and similarly aged controls. METHODS:Thirty-one subjects (15 DLB and 16 con...
journal_title：NeuroImage
pub_type： 杂志文章
doi：10.1016/j.neuroimage.2008.01.010
更新日期：2008-04-15 00:00:00
abstract：:Despite its importance as the prime method for non-invasive assessment of human brain function, functional MRI (fMRI) was repeatedly challenged with regards to the validity of the fMRI-derived brain activation maps. Amygdala fMRI was particularly targeted, as the amygdala's anatomical position in the ventral brain com...
journal_title：NeuroImage
pub_type： 杂志文章
doi：10.1016/j.neuroimage.2020.116585
更新日期：2020-05-01 00:00:00
abstract：:Rapid individuation of conspecifics' faces is ecologically important in the human species, whether the face belongs to a familiar or unfamiliar individual. Here we tested a large group (N = 69) of epileptic patients implanted with intracerebral electrodes throughout the ventral occipito-temporal cortex (VOTC). We used...
journal_title：NeuroImage
pub_type： 杂志文章
doi：10.1016/j.neuroimage.2020.117174
更新日期：2020-11-01 00:00:00
abstract：:Thedomestic pig is increasingly being used as an experimental model for brain imaging studies with positron emission tomography (PET). The recording of radiotracer uptake by PET gives functional and physiological information, but with poor spatial resolution. To date, anatomical regions of interest in pig brain have b...
journal_title：NeuroImage
pub_type： 杂志文章
doi：10.1006/nimg.2001.0910
更新日期：2001-11-01 00:00:00
