Search Results - "Chavane, F"

Voltage-sensitive dye imaging: Technique review and models by Chemla, S., Chavane, F.

“…In this review, we present the voltage-sensitive dye imaging (VSDI) method. The possibility offered for in vivo (and in vitro) brain imaging is unprecedented…”
Get full text

A biophysical cortical column model to study the multi-component origin of the VSDI signal by Chemla, S., Chavane, F.

“…We propose a biological cortical column model, at an intermediate mesoscopic scale, in order to better understand and interpret biological sources of…”
Get full text

Blindness and visual rehabilitation by Matonti, F, Roux, S, Denis, D, Picaud, S, Chavane, F

“…Blindness and visual impairment are a major public health problem all over the world and in all societies. A large amount of basic science and clinical…”
Get more information

NeuroPXI: A real-time multi-electrode array system for recording, processing and stimulation of neural networks and the control of high-resolution neural implants for rehabilitation by Bonnet, S, Bêche, J.-F, Gharbi, S, Abdoun, O, Bocquelet, F, Joucla, S, Agache, V, Sauter, F, Pham, P, Dupont, F, Matonti, F, Hoffart, L, Roux, S, Djilas, M, Kolomiets, B, Caplette, R, Chavane, F, Picaud, S, Yvert, B, Guillemaud, R

“…Abstract The increasing number of channels offered by new Microelectrode Array (MEA) systems raises the problem of data handling and analysis in real time. The…”
Get full text

The visual cortical association field: A Gestalt concept or a psychophysiological entity? by Chavane, F., Monier, C., Bringuier, V., Baudot, P., Borg-Graham, L., Lorenceau, J., Frégnac, Y.

“…The receptive field of a visual neurone is classically defined as the region of space (or retina) where a visual stimulus evokes a change in its firing…”
Get full text

A 3T fMRI study of cortical projection of visual scotomas: preliminary results by Hoffart, L, Conrath, J, Matonti, F, Wotawa, N, Chavane, F, Ridings, B, Masson, G S

“…We used functional magnetic resonance imaging (fMRI) to precisely measure both the localization and size of the cortical projections of artificial scotomas in…”
Get more information

Retinotopic organization of the human visual cortex: a 3T fMRI study by Hoffart, L, Conrath, J, Matonti, F, Galland, F, Wotawa, N, Chavane, F, Castet, E, Ridings, B, Masson, G S

“…INTRODUCTION. We used high-field (3T) functional magnetic resonance imaging (fMRI) to map the retinotopic organization of human cortical areas. Retinotopic…”
Get full text

Dynamics of local input normalization result from balanced short- and long-range intracortical interactions in area V1 by Reynaud, Alexandre, Masson, Guillaume S, Chavane, Frédéric

“…To efficiently drive many behaviors, sensory systems have to integrate the activity of large neuronal populations within a limited time window. These…”
Get full text

Imaging cortical correlates of illusion in early visual cortex by Chavane, Frédéric, Naaman, Shmuel, Grinvald, Amiram, Jancke, Dirk

“…Exploring visual illusions reveals fundamental principles of cortical processing. Illusory motion perception of non-moving stimuli was described almost a…”
Get full text

Orientation and Direction Selectivity of Synaptic Inputs in Visual Cortical Neurons: A Diversity of Combinations Produces Spike Tuning by Monier, Cyril, Chavane, Frédéric, Baudot, Pierre, Graham, Lyle J, Frégnac, Yves

“…This intracellular study investigates synaptic mechanisms of orientation and direction selectivity in cat area 17. Visually evoked inhibition was analyzed in…”
Get full text

Étude en IRM fonctionnelle 3T de la projection corticale de scotomes rétiniens : résultats préliminaires by Hoffart, L., Conrath, J., Matonti, F., Wotawa, N., Chavane, F., Ridings, B., Masson, G.S.

“…L’objectif de cette étude était d’étudier en IRM fonctionnelle (IRMf) à 3T la relation entre un scotome dans le champ visuel et sa projection dans l’espace…”
Get full text

Synaptic integration fields and associative plasticity of visual cortical cells in vivo by Frégnac, Y, Bringuier, V, Chavane, F

“…Two major constraints in connectivity decide the spatial extent of visual cortical receptive fields, both during development and adult functioning: 1)…”
Get full text

Analysis of retinal and cortical response to electrical stimulation by subretinal implant in rodent by MATONTI, F, ROUX, S, MARRE, O, PICAUD, S, CHAVANE, F

“…Purpose This aims to develop and improve the use of retinal prosthesis in animal model For that purpose we measured retinal and cortical response to direct…”
Get full text

Étude en IRM fonctionnelle 3T de l’organisation rétinotopique du cortex visuel by Hoffart, L., Conrath, J., Matonti, F., Galland, F., Wotawa, N., Chavane, F., Castet, E., Ridings, B., Masson, G.S.

“…Nous avons étudié l’organisation fonctionnelle du cortex visuel humain en imagerie par résonance magnétique fonctionnelle (IRMf) à haut champ (3T). Le but de…”
Get full text

An intracellular study of space and time representation in primary visual cortical receptive fields by Frégnac, Y, Bringuier, V, Chavane, F, Glaeser, L, Lorenceau, J

“…In contrast with previous knowledge based on extracellular recordings, the recent development of intracellular techniques in vivo (sharp electrode or ‘blind…”
Get full text

Cortical origin of contextual modulations in motion integration: linking V1 population response to the behavioral ocular following response by Chavane, F., Reynaud, A., Montardy, Q., Masson, G.

“…Abstract only…”
Get full text

Horizontal Propagation of Visual Activity in the Synaptic Integration Field of Area 17 Neurons by Bringuier, Vincent, Chavane, Frédéric, Glaeser, Larry, Frégnac, Yves

“…The receptive field of a visual neuron is classically defined as the region of space (or retina) where a visual stimulus evokes a change in its firing…”
Get full text

Cortical origin of contrast response function contextual modulation in V1 population activity measured with voltage-sensitive dye imaging by Reynaud, A., Masson, G., Chavane, F.

“…Abstract only…”
Get full text

The role of cortico-cortical interactions during motion integration: a voltage-sensitive dye imaging study in V1 and V2 of the awake monkey by Chavane, F., Reynaud, A., Masson, G.

“…Abstract only…”
Get full text

Post-implantation impedance spectroscopy of subretinal micro-electrode arrays, OCT imaging and numerical simulation: towards a more precise neuroprosthesis monitoring tool by Pham, Pascale, Roux, Sébastien, Matonti, Frédéric, Dupont, Florent, Agache, Vincent, Chavane, Frédéric

“…Previous studies have shown that single-frequency impedance measurements could provide useful information about the distance between the neuroprosthesis and…”
Get more information