Abstract:
:It is crucial to understand what brain signals can be decoded from single trials with different recording techniques for the development of Brain-Machine Interfaces. A specific challenge for non-invasive recording methods are activations confined to small spatial areas on the cortex such as the finger representation of one hand. Here we study the information content of single trial brain activity in non-invasive MEG and EEG recordings elicited by finger movements of one hand. We investigate the feasibility of decoding which of four fingers of one hand performed a slight button press. With MEG we demonstrate reliable discrimination of single button presses performed with the thumb, the index, the middle or the little finger (average over all subjects and fingers 57%, best subject 70%, empirical guessing level: 25.1%). EEG decoding performance was less robust (average over all subjects and fingers 43%, best subject 54%, empirical guessing level 25.1%). Spatiotemporal patterns of amplitude variations in the time series provided best information for discriminating finger movements. Non-phase-locked changes of mu and beta oscillations were less predictive. Movement related high gamma oscillations were observed in average induced oscillation amplitudes in the MEG but did not provide sufficient information about the finger's identity in single trials. Importantly, pre-movement neuronal activity provided information about the preparation of the movement of a specific finger. Our study demonstrates the potential of non-invasive MEG to provide informative features for individual finger control in a Brain-Machine Interface neuroprosthesis.
journal_name
Neuroimagejournal_title
NeuroImageauthors
Quandt F,Reichert C,Hinrichs H,Heinze HJ,Knight RT,Rieger JWdoi
10.1016/j.neuroimage.2011.11.053subject
Has Abstractpub_date
2012-02-15 00:00:00pages
3316-24issue
4eissn
1053-8119issn
1095-9572pii
S1053-8119(11)01335-8journal_volume
59pub_type
杂志文章相关文献
NEUROIMAGE文献大全abstract::The timing of slow auditory cortical activity aligns to the rhythmic fluctuations in speech. This entrainment is considered to be a marker of the prosodic and syllabic encoding of speech, and has been shown to correlate with intelligibility. Yet, whether and how auditory cortical entrainment is influenced by the activ...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2016.11.062
更新日期:2017-02-15 00:00:00
abstract::The James-Lange theory of emotion proposes that automatically generated bodily reactions not only color subjective emotional experience of stimuli, but also necessitate a mechanism by which these bodily reactions are differentially generated to reflect stimulus quality. To examine this putative mechanism, we simultane...
journal_title:NeuroImage
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/j.neuroimage.2004.10.013
更新日期:2005-02-01 00:00:00
abstract::Recently, a related morphometry-based connection concept has been introduced using local mean cortical thickness and volume to study the underlying complex architecture of the brain networks. In this article, the surface area is employed as a morphometric descriptor to study the concurrent changes between brain struct...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2010.01.028
更新日期:2010-05-01 00:00:00
abstract::Stimulus counterbalance is critical for studies of neural habituation, bias, anticipation, and (more generally) the effect of stimulus history and context. We introduce de Bruijn cycles, a class of combinatorial objects, as the ideal source of pseudo-random stimulus sequences with arbitrary levels of counterbalance. N...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2011.02.005
更新日期:2011-06-01 00:00:00
abstract:BACKGROUND:High sensation-seekers (HSS) pursue novelty even at the cost of self-harm. When challenged, HSS are less anxious, show blunted physiological (cortisol, startle) and neurobiological (prefrontal-limbic) responses, and devalue aversive outcomes. Here, we investigate how these features interact under conditions ...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2014.08.038
更新日期:2014-12-01 00:00:00
abstract::As the population ages, the incidence of age-related neurological diseases and cognitive decline increases. To further understand disease-related changes in brain function it is advantageous to examine brain activity changes in healthy aging rodent models to permit mechanistic investigation. Here, we examine the suita...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2020.116976
更新日期:2020-09-01 00:00:00
abstract::Cognitive emotion regulation is a powerful way of modulating emotional responses. However, despite the vital role of emotions in learning, it is unknown whether the effect of cognitive emotion regulation also extends to the modulation of learning. Computational models indicate prediction error activity, typically obse...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2015.08.038
更新日期:2015-12-01 00:00:00
abstract::Mindboggle (http://www.binarybottle.com/mindboggle.html) is a fully automated, feature matching approach to label cortical structures and activity anatomically in human brain MRI data. This approach does not assume that the existence of component structures and their relative spatial relationship is preserved from bra...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2004.09.016
更新日期:2005-01-15 00:00:00
abstract::Alterations in cerebral blood flow (CBF) may play an important role in the pathophysiology of neurodegenerative disorders such as Huntington's disease (HD). While a few reports have suggested reductions in CBF in HD, little is known about their extent and whether, or how, they might be related to atrophy and to clinic...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2011.08.112
更新日期:2012-01-16 00:00:00
abstract::The basal ganglia-thalamo-cortical circuits are viewed as segregated parallel feed back loops crucially involved in motor control, cognition, and emotional processing. Their role in planning novel, as compared to overlearned movement patterns is as yet not well defined. We tested for the involvement of the associative...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2008.10.059
更新日期:2009-02-15 00:00:00
abstract::The study of spontaneous fluctuations in the blood-oxygen-level-dependent (BOLD) signal has recently been extended from the brain to the spinal cord. Two ultra-high field functional magnetic resonance imaging (fMRI) studies in humans have provided evidence for reproducible resting-state connectivity between the dorsal...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2016.12.072
更新日期:2017-02-15 00:00:00
abstract::A series of reports have recently appeared using tensor based morphometry statistically-defined regions of interest, Stat-ROIs, to quantify longitudinal atrophy in structural MRIs from the Alzheimer's Disease Neuroimaging Initiative (ADNI). This commentary focuses on one of these reports, Hua et al. (2010), but the is...
journal_title:NeuroImage
pub_type: 评论,杂志文章
doi:10.1016/j.neuroimage.2010.11.092
更新日期:2011-07-01 00:00:00
abstract::Repetition has been shown to activate the so-called 'dorsal stream', a network of temporo-parieto-frontal areas subserving the mapping of acoustic speech input onto articulatory-motor representations. Among these areas, a region in the posterior Sylvian fissure at the temporo-parietal boundary (also called 'area Spt')...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2011.07.025
更新日期:2012-01-02 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
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2009.12.114
更新日期:2010-04-01 00:00:00
abstract::Real-time fMRI (rtfMRI) allows immediate access to experimental results by analyzing data as fast as they are acquired. It was devised soon after the inception of fMRI and has undergone a rapid development since then. The availability of results during the ongoing experiment facilitates a variety of applications such ...
journal_title:NeuroImage
pub_type: 历史文章,杂志文章,评审
doi:10.1016/j.neuroimage.2011.10.009
更新日期:2012-08-15 00:00:00
abstract:OBJECTIVE:We propose to use cross-correlation function to determine significant fetal and neonatal evoked responses (ERs). METHODS:We quantify ERs by cross-correlation between the stimulus time series and the recorded brain signals. The statistical significance of the correlation is calculated by surrogate analysis. F...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2008.07.054
更新日期:2008-11-15 00:00:00
abstract::The relationship between structure and function in the human brain is well established, but not yet well characterised. Large-scale biophysical models allow us to investigate this relationship, by leveraging structural information (e.g. derived from diffusion tractography) in order to couple dynamical models of local ...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2018.02.063
更新日期:2018-07-01 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
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2017.10.053
更新日期:2018-02-15 00:00:00
abstract::Functional neuroimaging research in humans has identified a number of brain areas that are activated by the delivery of primary and secondary reinforcers. The present study investigated how activity in these reward-sensitive regions is modulated by the context in which rewards and punishments are experienced. Fourteen...
journal_title:NeuroImage
pub_type: 临床试验,杂志文章
doi:10.1016/j.neuroimage.2004.12.043
更新日期:2005-05-01 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::Recently, real time imaging of the cortical control of gait became possible with functional near-infrared spectroscopy (fNIRS). So far, little is known about the activations of various cortical areas in more complex forms of gait, such as precision stepping. From previous work on animals and humans one would expect pr...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2013.04.070
更新日期:2014-01-15 00:00:00
abstract::Signal loss in gradient-echo echo planar imaging (GE-EPI) due to susceptibility-induced magnetic field inhomogeneity makes it difficult to assess the blood oxygenation level-dependent (BOLD) effect in fMRI investigations. The z-shim method that applies an additional gradient moment is one of the more popular methods o...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2011.01.045
更新日期:2011-04-15 00:00:00
abstract::A number of previous studies have interpreted differences in brain activation between arithmetic operation types (e.g. addition and multiplication) as evidence in favor of distinct cortical representations, processes or neural systems. It is still not clear how differences in general task complexity contribute to thes...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2014.01.061
更新日期:2014-05-15 00:00:00
abstract::This work introduces a compartment-based model for apparent cell body (namely soma) and neurite density imaging (SANDI) using non-invasive diffusion-weighted MRI (DW-MRI). The existing conjecture in brain microstructure imaging through DW-MRI presents water diffusion in white (WM) and gray (GM) matter as restricted di...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2020.116835
更新日期:2020-07-15 00:00:00
abstract::Longitudinal neuroimaging data plays an important role in mapping the neural developmental profile of major neuropsychiatric and neurodegenerative disorders and normal brain. The development of such developmental maps is critical for the prevention, diagnosis, and treatment of many brain-related diseases. The aim of t...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2016.04.023
更新日期:2016-07-01 00:00:00
abstract::Can human listeners use implicit temporal contingencies in auditory input to form temporal predictions, and if so, how are these predictions represented endogenously? To assess this question, we implicitly manipulated temporal predictability in an auditory pitch discrimination task: unbeknownst to participants, the pi...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2019.116198
更新日期:2019-12-01 00:00:00
abstract::Imaging studies have shown an association between dopamine increases in striatum and cue induced craving in cocaine abusers. However, the extent to which dopamine increases reflect a primary rather than a secondary response to the cues remains unclear. Here we evaluated the extent to which dopamine increases by themse...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2007.09.059
更新日期:2008-02-01 00:00:00
abstract::Intelligent action entails exploiting predictions about associations between elements of ones environment. The hippocampus and mediotemporal cortex are endowed with the network topology, physiology, and neurochemistry to automatically and sparsely code sensori-cognitive associations that can be reconstructed from sing...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2014.07.020
更新日期:2014-11-15 00:00:00
abstract::The present study examined the interaction of the central executive in working memory with visual attention. Native Chinese participants were given two versions of a number subtraction task, one of low demand and one of high demand, and were asked to ignore a simultaneously presented peripheral distractor. The distrac...
journal_title:NeuroImage
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/j.neuroimage.2004.06.025
更新日期:2004-10-01 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
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2012.01.077
更新日期:2012-04-02 00:00:00