Electrical Neuroimaging

Group

                                                                            WELCOME

In particular we work on data collected at our own facilities or from different national and international collaborators namely:

- EEG signals recorded in humans

- Multiunit activity recorded in monkeys and

- Local Field Potentials recorded in patients and monkeys.

As for the methods we are focused on the development of methods to deal with multivariate spatio temporal time series as:

- Short EEG windows as used for the Single Trial anlysis

- Analysis of short non stationary signals in the time and the spectral domain.

- Development of methods for the non invasive estimation of the activity inside the brain.

- Conectivity analysis using scalp measured data, intracranial recordings or Local Field Potentials non invasively estimated from the EEG.

- Multivariate pattern recognition techniques.

The current list of the assets of the ENG includes:

- Proposal of several linear inverse solutions (LAURA, EPIFOCUS, ELECTRA, WROP, ANA) for the estimation of the activity inside the brain and methods for their evaluation.

- Development of the only method available (ELECTRA) for the non invasive estimation of Local Field Potentials (LFP) using external EEG measurements (link here).

- First proposal for the use of inverse solutions for BCI at both the Swiss national level and the international level.

- Development of online EEG analysis methods for Neuro-Rehabilitation and efficient (asynchronous) Brain Computer Interface to control a wheel chair using brain waves.

- First proposal of single trial time frequency analysis of pre stimulus state and correlation with       behavior using noninvasive LFP estimated with ELECTRA (link-here).

- First work on mind reading using inverse solution on single trials. Decoding of visual percepts using 500 ms EEG windows and LFP estimated with ELECTRA (link-here)

- Description of the role of very high (>100) frequency oscillations in healthy subjects (link-here)

- Single trial time frequency analysis of emotional states in monkeys and humans. Identification of the image valence using intracranial data measured in monkey or inverse solutions estimates in healthy subjects.  

- Identification of the mechanisms of conscious perception and its disturbances in a blindsight patient using non invasive Local Field Potentials.

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                                            SUPERVISION / CONSULTING

The Electrical Neuroimaging Group offers consulting and supervision services for private and public institutions on the following topics:

- Analysis of electrophysiological signals (electroencephalogram EEG, electrocorticogram EcoG, Local field Potentials LFP, Single Unit Activity SUA, Multiple Unit Activity MUA, Skin Conductance, Electrocardiogram EKG, etc).

- Development and implementation of realistic head models (MRI based) for source localization in  patients, single subjects (e.g. Epileptic focus localization, blindsight, etc) or Average Evoked Potentials (event related potentials).

- Real time EEG analysis for Brain Computer Interfaces and Neurorehabilitation.

- Development and Implementation of Brain Connectivity methods.

- Functional activation images based on non invasive estimation of local field potentials (ELECTRA) and multivariate pattern recognition methods.

The members of our group have a long tradition and experience supervising / training / teaching different groups and individuals as for example:

- Lemanic Neuroscience Program (Ph. D and Master programs)

- Christoph M. Michel and the Functional Brain Mapping Lab.

- Several Ph.D students and Post-Doc's e.g. Olaf Blanke, Micah Murray, Stephanie Morand, etc.

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2009

Press Release: L'art de bien diriger - L'UNIGE prend part à une expérience pionnière débouchant sur le pilotage d'un robot situé à 1500 kilomètres 22.06.2009.click here

MyScience.ch: Pilotage d’un robot situé à 1500 kilomètres. click here

Courrier International.Technologie. EN BREF:Un robot commande a distance par le cerveau. 23-04-2009, Hebdo n° 964

Commander un robot à 1500 km par la pensée : c'est possible. click here

Tribune de Genève:Importante découverte de l'Université de Genève. 25.06.2009 click here

RSR.ch, La 1ère : Comander un robot par la pensèe. click here

20 minuten: Forscher dirigieren 1500 Kilometer entfernten Roboter. 22.06.2009 click here

Bluewin.ch: Gedankenübertragung: Genfer Forscher dirigieren 1500 Kilometer entfernten Roboter click here

2008

The TV show "Mise au point" on TSR featured our virtual wheelchair control on Sunday 13 of May 2008 at 8 p.m. (see "Lire dans les pensees")

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H O M E