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Chronotopic maps in human supplementary motor area

Publications associées (44)

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The topology of structural brain connectivity in diseases and spatio-temporal connectomics

Alessandra Griffa

The brain is a complex system, composed of multiple neural units interconnected at different spatial and temporal scales. Diffusion MRI allows probing in vivo the anatomical connectivity between different cortical areas through white matter tracts. In para ...

EPFL2015

Tonotopic organization in monkey and human auditory cortex using phase-encoded functional MRI

Melissa Saenz, Wietske Van der Zwaag, Naghmeh Ghazaleh, Gaëlle Chapuis

Tonotopic organization is the main topographic feature of the primary auditory cortex. Importantly, tonotopy allows to define borders of cortical areas as reversals of the frequency gradient (i.e the spatial derivative of the preferred frequency map). Very ...

2013

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Cortical folding (gyrification) is determined during the first months of life, so that adverse events occurring during this period leave traces that will be identifiable at any age. As recently reviewed by Mangin and colleagues2, several methods exist to q ...

2012

Thalamic control of cortical states

Carl Petersen, Sylvain Crochet, James Poulet

We investigated the impact of thalamus on ongoing cortical activity in the awake, behaving mouse. We demonstrate that the desynchronized cortical state during active behavior is driven by a centrally generated increase in thalamic action potential firing, ...

Nature Publishing Group2012

Hedging Your Bets by Learning Reward Correlations in the Human Brain

Human subjects are proficient at tracking the mean and variance of rewards and updating these via prediction errors. Here, we addressed whether humans can also learn about higher-order relationships between distinct environmental outcomes, a defining ecolo ...

2011

Mental imagery for full and upper human bodies: common right hemisphere activations and distinct extrastriate activations

Olaf Blanke, Christine Mohr, Silvio Ionta

The processing of human bodies is important in social life and for the recognition of another person's actions, moods, and intentions. Recent neuroimaging studies on mental imagery of human body parts suggest that the left hemisphere is dominant in body pr ...

Springer Verlag2010

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P>The neurochemical profile of the cortex develops in a region and time specific manner, which can be distorted by psychiatric and other neurological pathologies. Pre-clinical studies often involve experimental mouse models. In this study, we determined th ...

Wiley-Blackwell2010

The mammalian neocortex is one of the most complex brain areas, integrating all sensory modalities and allowing the animal to perform high level cognitive operations. Despite some cytoarchitectural specializations, the general neocortical structure is rema ...

EPFL2009

Spontaneous locally restricted EEG alpha activity determines cortical excitability in the motor cortex

Friedhelm Christoph Hummel

There is growing interest in the functional meaning of rhythmical brain activity. For oscillatory brain activity around 10 Hz in the human electroencephalogram (EEG) it is discussed whether it is associated with the level of cortical excitation. However, i ...

Elsevier2009

Controversy exists regarding the site where anesthetics act in the brain to produce sedation and unconsciousness. Actions in the cerebral cortex and thalamus are likely, although the relative importance of each site is unclear. We used in computo modeling ...

2009