Concept

Large-scale brain network

Publications associées (229)

Multimodal Fusion of Muscle and Brain Signals for a Hybrid-BCI

José del Rocio Millán Ruiz, Ricardo Andres Chavarriaga Lozano, Robert Leeb, Hesam Sagha

Practical Brain-Computer Interfaces (BCIs) for disabled people should allow them to use all their remaining functionalities as control possibilities. Sometimes these people have residual activity of their muscles, most likely in the morning when they are n ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2010

Functional connectivity and alterations in baseline brain state in humans

Roberto Martuzzi

This work examines the influence of changes in baseline activity on the intrinsic functional connectivity fMRI (fc-fMRI) in humans. Baseline brain activity was altered by inducing anesthesia (sevoflurane end-tidal concentration 1%) in human volunteers and ...

2009

Involvement of the intrinsic/default system in movement-related self recognition

Roy Salomon

The question of how people recognize themselves and separate themselves from the environment and others has long intrigued philosophers and scientists. Recent findings have linked regions of the 'default brain' or 'intrinsic system' to self-related process ...

Public Library of Science2009

Predicting Human Resting-State Functional Connectivity from structural Connectivity

Jean-Philippe Thiran, Reto Meuli, Patric Hagmann, Leila Cammoun, Xavier Gigandet, Olaf Sporns

In the cerebral cortex, the activity levels of neuronal populations are continuously fluctuating. When neuronal activity, as measured using functional MRI (fMRI), is temporally coherent across 2 populations, those populations are said to be functionally co ...

2009

Breakdown of Effective Connectivity During Slow Wave Sleep: Investigating the Mechanism Underlying a Cortical Gate Using Large-Scale Modeling

Sean Lewis Hill

Esser SK, Hill S, Tononi G. Breakdown of effective connectivity during slow wave sleep: investigating the mechanism underlying a cortical gate using large-scale modeling. J Neurophysiol 102: 2096-2111, 2009. First published August 5, 2009; doi: 10.1152/jn. ...

2009

The effects of physiologically plausible connectivity structure on local and global dynamics in large scale brain models

Patric Hagmann, Olaf Sporns

Functionally relevant large scale brain dynamics operates within the framework imposed by anatomical connectivity and time delays due to finite transmission speeds. To gain insight on the reliability and comparability of large scale brain network simulatio ...

Elsevier2009

Step-by-step: the effects of physical practice on the neural correlates of locomotion imagery revealed by fMRI

Silvio Ionta

Previous studies have shown that mental imagery is a suitable tool to study the progression of the effect of practice on brain activation. Nevertheless, there is still poor knowledge of changes in brain activation patterns during the very early stages of p ...

2009

EEG-MEG evidence for early differential repetition effects for fearful, happy and neutral faces

Nathalie George, Manuel Mercier

To deter-mine how emotional information modulates subsequent traces for repeated stimuli, we combined simultaneous electro-encephalography (EEG) and magneto-encephalography (MEG) measures during long-lag incidental repetition of fearful, happy, and neutral ...

2009

Global brain connectivity analysis by diffusion MR tractography

Xavier Gigandet

The human cerebral cortex consists of approximately 1010 neurons that are organized into a complex network of local circuits and long-range connections. During the past years there has been an increasing interest from the neuro-scientific community towards ...

EPFL2009

Multiquantal release underlies the distribution of synaptic efficacies in the neocortex

Henry Markram, Gilad Silberberg, Daniela Helbig

Inter-pyramidal synaptic connections are characterized by a wide range of EPSP amplitudes. Although repeatedly observed at different brain regions and across layers, little is known about the synaptic characteristics that contribute to this wide range. In ...

2009

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